# sodium chloride solubility curve

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January 13, 2017

What is the solubility of potassium chloride in 100 grams of water at 80°C? It tells us that at any point below the solubility curve the solution is unsaturated, that is, more solute could be added to the water at that temperature until you reach the line at which point the solution will be saturated. 63% average accuracy. Although it forms easily through the combination of its component elements sodium and chlorine. What is the solubility of potassium chloride in 100 grams of water at 80°C? (i) Calculate mass of CuSO4 present in a saturated solution of 50 g water at 20°C: (ii) Calculate mass of CuSO4 that precipitates (crystallises) out of solution when cooled. 1. B) The Minimum Temperature That Is Required To Dissolve 24g Of Potassium Nitrate In 100mL Of Water. For other uses, see, Crystal structure with sodium in purple and chloride in green, Except where otherwise noted, data are given for materials in their, Unexpected stable stoichiometric variants. Name: _____ pd. Pricing Schools About Log in Join now. Using Solubility Curves . How many grams will dissolve in 500 mL of water? What is the solubility of sodium chloride in 100 grams of water at 90°C? For gases, the pressure must also be specified. How many grams of ammonium chloride will dissolve in 100 grams of water at 20°C? Different substances will have different solubility curves. 8. Please enable javascript and pop-ups to view all page content. Salt is currently mass-produced by evaporation of seawater or brine from brine wells and salt lakes. As Fig. But what happens if we change the temperature of the solution? Infer: Based on your graph, what would you predict is the solubility of sodium chloride at a temperature of 5 °C? The solubility is often (although not always) measured as the mass Page 16/28. Based on its solubility curve, what can you infer about how much heat sodium chloride absorbs? The substances are listed in alphabetical order. NH3 and Which substance is least affected by temperature changes? Jian Sun, Lisheng Wang, and Guomin Yu . constructing a solubility curve for KNO3 in water. A solubility curve shows how the solubility of a salt like sodium chloride or potassium nitrate varies with temperature. Magnesium chloride and sodium chloride are not soluble in hydrochloric acid, due to the common ion effect. _____ 4. 1 The solubility of NaClin water is decreased by adding HCl; it is almost insoluble in concentrated HCl. Question: Use The Solubility Curve (shown) To Determine: A) The Mass Of Sodium Chloride That Will Dissolve In 0.100L Of Water At 80 OC. "Saltier waterways are creating dangerous 'chemical cocktails, "Most Road Salt Is Making It into Lakes And Rivers", "Turning to beet juice and beer to address road salt danger", "EASA Cautions on Organic Salt Deicing Fluid", "Capturing the Moment of Emergence of Crystal Nucleus from Disorder", "The crystal structure of sodium chloride dihydrate", "Using Salt and Sand for Winter Road Maintenance", https://en.wikipedia.org/w/index.php?title=Sodium_chloride&oldid=1006277808, Short description is different from Wikidata, Pages using collapsible list with both background and text-align in titlestyle, Articles containing unverified chemical infoboxes, Wikipedia articles needing clarification from October 2016, Articles with unsourced statements from August 2020, Wikipedia articles incorporating text from the United States Geological Survey, Creative Commons Attribution-ShareAlike License, This page was last edited on 12 February 2021, at 01:09. Sodium chloride has been listed as a level-4 vital article in Science, Physics. Then, graph the solubility curve of sodium chloride. • At 55°C, a saturated solution would contain 120 g of solute, NaNO3. solute’s solubility curve), or an unsaturated solution (below the solute’s solubility curve). For gases, the pressure must also be specified. the solubility of sodium chloride and potassium nitrate is the same at about 23°C (approximately 38 g per 100 g water, where the solubility curves of these substances cross) previous 1 solubility of a salt like sodium chloride or potassium nitrate varies with temperature. SOLUBILITY CURVE WORKSHEET KEY Use your solubility curve graphs provided to answer the following questions. How many grams of K2Cr2O7, are soluble in 100 g of water at 95 ºC? How many grams will dissolve in 500 mL of water? Define solubility. The first thing we notice is that more NaCl(s) can be dissolved in 100 g of water if we increase the temperature. At all temperatures above that marked on the graph (about 57°C), 100 g of water will dissolve more than 100 g of potassium nitrate. Many substances are soluble in water. Define solubility. The solubility is often (although not always) measured as the mass of salt which would saturate 100 grams of water at a particular temperature. A critical review. To find more Sodium chloride information like chemical properties, structure, melting point, boiling point, density, molecular formula, molecular weight, physical properties and toxicity information. 2. In particular, the solubility curve of NaCl/H 2 O has been measured. _____ 3. What is the solubility of sodium chloride in 100 grams of water at 90°C? Solubility Although calcium chloride is highly soluble in water at ordinary temperatures, crystallization will occur under certain temperature and concentration conditions. _____ 4. These conditions are defined by the phase diagram of the calcium chloride-water system shown in Figure 1. Remember that solubility refers to the maximum mass of solute that can be dissolved in a given mass of solvent at a specified temperature. This article has been rated as B-Class. Calculate the maximum number of grams of each solute that can be dissolved; a) potassium nitrate in 300 cm3 b) sodium chloride in 1250 um3 c) sodium nitrate in 50 crag Name: _____ pd. The water solubility of sodium chloride is 36.0 g at 20°C per 100 g of water. This means that if you measure out 100 mL (100 cm3) of water at 20°C in a 100 mL volumetric flask, it will have a mass of: 100 mL of water at 20°C has a mass of 99.82 g. If we then heat this 99.82 g of water in the 100 mL volumetric flask to 40°C we could see the water level rise above the mark as the volume increases (as a result of the decrease in density at higher temperature), we can calculate the volume of this mass of water at 40°C: At 20°C, 99.82 g of water has a volume of 100 cm3, but if you increase the temperature to 40°C, the same mass of water has a greater volume, that is, 100.6 cm3. The temperature must be specified because solubility varies with temperature. _____ Solubility Curves 2. (ii) Subtract this mass of CuSO4 from the original mass of CuSO4 present in the "hot" solution. solute’s solubility curve), or an unsaturated solution (below the solute’s solubility curve). 2) Each curve shows how the solubility for that substance changes as changes. At approximately what temperature does the solubility of sodium chloride, NaCl, match the solubility of potassium dichromate, K 2 Cr 2 O 7 ? What are the customary units of solubility on solubility curves? What mass of Ammonium Chloride will dissolve at 50°C in 100 g of water? For aqueous solutions, the units are grams of solute per 100 g of water (g/100 g). Contents A 3. The density of a saturated solution at 25 C … • At 55°C, a saturated solution would contain 120 g of solute, NaNO3. 3326 times. The table below provides information on the variation of solubility of different substances (mostly inorganic compounds) in water with temperature, at one atmosphere pressure.Units of solubility are given in grams per 100 millilitres of water (g/100 mL), unless shown otherwise. Chemistry Science 8th Grade 9th Grade Paul Reeves 861. A saturated solution of sodium nitrate in 100g water at 40°C is heated to 50°C. The crude salt is dissolved in water to remove insoluble impurities, and refined preparations such as sodium hydroxide and sodium carbonate are added to make soluble impurities such as SO 4 2-, Ca 2+ and Mg 2+ become precipitates, filtered to remove, and finally purified with The pH was adjusted to 7 with hydrochloric acid, and the solution was concentrated to obtain pure sodium chloride crystals. 6. Read Online Solubility Curves Which Salt Is Least Soluble In Water At 20 C Solution Crossword Answer Key of salt which would saturate 100 grams of water at a particular temperature. Each blog post includes links to relevant AUS-e-TUTE tutorials and problems to solve. The solubility of different solutes in 100 g of water at different temperatures is usually plotted on the same set of axes. 43.Based on the data table, if 15 grams of solute is dissolved in 100 grams of water at 40°C, how many 0. Solubility per 100 g of solvent is also measured as the grams of solute. in a combustive reaction that releases about 411 kilojoules of energy per mole of the compound, it is practically never intentionally created due to the violence of such a reaction - unless to measure properties of such a reaction. Temporarily the water has more NaCl dissolved in it than is possible based on the solubility curve data. Play this game to review States of Matter. , Small particles of sea salt are the dominant cloud condensation nuclei far out at sea, which allow the formation of clouds in otherwise non-polluted air.. 6. 3. By plotting sodium chloride solubility at 100 bar, using the results of our experiments and those of Galobardes et al. 1. A measure of how much solute can dissolve in a given amount of solvent. SCIENCE ' Solubility Calculations 1. 2. 2. SOLUBILITY CURVE WORKSHEET KEY Use your solubility curve graphs provided to answer the following questions. This indicates that compounds violating chemical intuition are possible, in simple systems under nonambient conditions. What is the solubility of kno3 at 45 degrees Celsius? To find more Sodium hydroxide information like chemical properties, structure, melting point, boiling point, density, molecular formula, molecular weight, physical properties and toxicity information. Solubility Curves for Solids.. Each point on the curve in the graph above tells how much solute we can add to 100 g of water at that temperature in order to form a saturated solution. This means that you can't use the volume of water to determine concentration if you are going to the change the temperature because the volume of the water also changes with temperature! What information have you been given in the question? Jordanian and Israeli salt evaporation ponds at the south end of the Dead Sea. Solubility of a substance is useful when separating mixtures. Mass of crystals formed must be less than 19.50 g because we can't crystallise out more CuSO4 than was present in the original solution. solubility of a salt like sodium chloride or potassium nitrate varies with temperature. Gather data: Now use the Gizmo to measure the solubility of sodium chloride at each temperature given in the table below. Oofino solubility, iven amount of According to tho graph, tho solubility of any substance changes as temperature changes, List tho substancos whoso solubility decreases as temperature increases. China is the world's main supplier of salt. 1) Most substances on this graph show increased solubility as temperature increases. How many grams will dissolve in 13 grams of water? mass copper(II) sulfate dissolved at 60°C = m(CuSO4(dissolved)) = 19.50 g, From the solubility curve: concentration of saturated solution at 20°C = 32.00 g/100 g. What is the relationship between what you have been given and what you need to find out? 2H2O. At all temperatures above that marked on the graph (about 57°C), 100 g of water will dissolve more than 100 g of potassium nitrate. Hydrochloric acid is produced by dissolving hydrogen chloride gas in water. Sodium Chloride is a metal halide composed of sodium and chloride with sodium and chloride replacement capabilities. At approximately what temperature does the solubility of sodium chloride, NaCl, match the solubility of potassium dichromate, K2Cr2O7? More information about Sodium hydroxide (NaOH). (ii) nature of the solvent (intermolecular forces), (iii) temperature (Solubility & Le Chatelier's Principle), (i) determine how much solute will dissolve in the solvent at a given temperature, (ii) compare the solubilities of different solutes in the same solvent, (iii) determine the mass of solid precipitated, or crystallised, out of solution when the temperature of the solution changes. A critical review. Many salts, such as sodium chloride (NaCl(s)), are soluble in water at 25°C. The amount of solid which dissolves in water at a particular temperature is different for different substances. Then, graph the solubility curve of sodium chloride. What is the smallest mass of water required to dissolve completely 23g of ammonium chloride at 40°C? Crystal growth and dissolution experiments were used to determine the saturation temperatures of the given solutions; the corresponding salt concentrations were measured by chemical analysis. At 57°C, you hit the solubility curve. If 50g of water saturated with potassium chlorate at 23°C is slowly evaporated to dryness, how many grams of the dry salt will be recovered? Read Online Solubility Curves Which Salt Is Least Soluble In Water At 20 C Solution Crossword Answer Key of salt which would saturate 100 grams of water at a particular temperature. Example: Refer to graph to answer the following questions: 1. NaCl is dispersed in alcohol to form colloids. Infer: Based on your graph, what would you predict is the solubility of sodium chloride at a temperature of 5 °C? The solubility curve for copper(II) sulfate in water is shown below: Calculate the mass of copper(II) sulfate crystals. What is the smallest mass of water required to dissolve completely 23g of ammonium chloride at 40°C? Heats of crystallization of potassium chloride and magnesium chloride hexahydrate from aqueous solutions at 298.15 K. A critical review. _____ Solubility Curves 2. A solubility curve shows how the solubility of a salt like sodium chloride or potassium nitrate varies with temperature. What is the solubility of ammonium chloride in 100 grams of water at 100°C? 3.50 g of CuSO4(s) precipitates (crystallises) out of solution at 20°C. Note: Chris the Chemist has a solution containing 50 g of water, NOT 100 g of water. For its familiar form, common table salt, see, "NaCl" redirects here. Sodium chloride is a white odorless crystalline powder. (1981b) and Martynova (Mar- tynova and Samoilov, 1962; Martynova, 1964), a possible explanation for the discrepancies in the data can be developed. The pH of a sodium chloride solution remains ≈7 due to the extremely weak basicity of the Cl− ion, which is the conjugate base of the strong acid HCl. The solubility curves for sodium chloride (NaCl) and lithium sulfate (Li 2 SO 4) are plotted in the graph below: What is less soluble in 100 g of water at 10°C sodium nitrate or sodium chloride? mass CuSO4(s) = mass CuSO4(dissolved) - mass CuSO4(saturated).  In 2017, world production was estimated at 280 million tonnes, the top five producers (in million tonnes) being China (68.0), United States (43.0), India (26.0), Germany (13.0), and Canada (13.0). Oofino solubility, iven amount of According to tho graph, tho solubility of any substance changes as temperature changes, List tho substancos whoso solubility decreases as temperature increases. (Notice, this point is exactly on the solute’s curve). Degress Celsius and grams of solute/100g of water 2. (Notice, this point is exactly on the solute’s curve). able to use the solubility curve graph to solve various problems and determine trends in the curve. The existence of some of them has been experimentally confirmed at high pressures: cubic and orthorhombic NaCl3 and two-dimensional metallic tetragonal Na3Cl. **See solubility curves on graph on reverse side. Solubility is specific for a particular solvent. The substances are listed in alphabetical order. But for gases and some other salts, like lithium sulfate, the solubility decreases as the temperature increases. 4. Recent developments in chemistry written in language suitable for students. Solubility of NaCl, NaBr, and KCl in Water, Methanol, Ethanol, and Their Mixed Solvents Sima˜o P. Pinho† and Euge´nia A. Macedo* Laboratory of Separation and Reaction Engineering, Departamento de Engenharia Quı´mica, Faculdade de Engenharia, Rua do Dr. Roberto Frias, 4200-465 Porto, Portugal The solubilities of sodium chloride, sodium bromide, and potassium bromide in the … 3. As shown above, the mass of lithium sulfate that can be dissolved in 100 g of water actually decreases as you increase the temperature of the solution.  Salt is also a byproduct of potassium mining. In other words, the solubility of sodium chloride would be different in another solvent. 3. Typically, the units are grams of solute per 100 g of solvent (g/100 g). 3.5 g < 19.50 g so we are confident our answer is plausible. That is, the curve in the graph represents the concentration, in grams of NaCl(s) per 100 g of water, of a saturated aqueous solution of sodium chloride (NaCl(aq)) at different temperatures. Common Questions and Answers about Solubility curve of potassium chloride in water. Solubility Curves When solubility is plotted against temperature, a solubility curve is obtained. Take a picture and insert a picture in the bottom of the graph if you cannot draw in this document. 4. Go Back. Solubility Curve DRAFT. Solubility in water, acetone, glycerol, diethyl ether, ammonia liquid, methanol, ethanol, . Answers will vary. The resulting ruesolubility curve for NaCI is shown in fig. e) The solubility of sodium chloride is very slightly affected by the increase in temperature; the increase in solubility is only 4.1 grams from 0 o C to 100 o DEDUCTIONS of solubility curve: a) It gives a general idea about the ability of a solute to dissolve in water, at different temperatures. B) The Minimum Temperature That Is Required To Dissolve 24g Of Potassium Nitrate In 100mL Of Water. Solubility Curves for Solids.. 8. 5. 515–555. Solubility in water, acetone, glycerol, diethyl ether, ammonia liquid, methanol, ethanol, . What is the solubility of ammonium chloride in 100 grams of water at 100°C? In other words, NaCl has no effect on system pH in diluted solutions where the effects of ionic strength and activity coefficients are negligible. Water - Solubility - Ions. With molar masses of 22.99 and 35.45 g/mol respectively, 100 g of NaCl contains 39.34 g Na and 60.66 g Cl. In the present experiments the crystal growth rate of sodium chloride from aqueous solution has been studied. To find more Sodium hydroxide information like chemical properties, structure, melting point, boiling point, density, molecular formula, molecular weight, physical properties and toxicity information. Thus the addition of ferrous chloride into a solution of sodium carbonate or sodium carbonate leads to the precipitation of ferrous carbonate with sodium chloride remaining in the solution. Points on the solubility curve give the concentration, in g/100 g, of a saturated solution at that temperature. A saturated solution of sodium nitrate in 100g water at 40°C is heated to 50°C. As a solvent, we will assume the solubility of a substance in liquids. Sodium chloride is available so cheaply that it need never be synthesized. This article is cited by 19 publications. NaCl How many grams of ammonium chloride (NH4Cl) at 500C? Question: Use The Solubility Curve (shown) To Determine: A) The Mass Of Sodium Chloride That Will Dissolve In 0.100L Of Water At 80 OC. sdharry. The solubility is often (although not always) measured as the mass Page 16/28. 95 °C? Likewise, it forms from many reactions involving solutes that allow sodium chloride as the remaining solute in solution after a reaction between a metallic chloride (most are soluble) What does this tell us about the region in the graph below the solubility curve? Gather data: Now use the Gizmo to measure the solubility of sodium chloride at each temperature given in the table below. Then, graph the solubility curve of sodium chloride. 4. 1. 3 years ago. If 50g of water saturated with potassium chlorate at 23°C is slowly evaporated to dryness, how many grams of the dry salt will be recovered? Copy of DLD 10- Solubility Curves Worksheet March 19, 2020 Impact. All the potassium nitrate will stay in solution. INTERPRETING SOLUBILITY CURVES _____ 1. Solubility table From Wikipedia, the free encyclopedia See also: Solubility chart The table below provides information on the variation of solubility of different substances (mostly inorganic compounds) in water with temperature, under 1 atm pressure, units of solubility in g/100g H2O. The points have been plotted on a graph to produce a solubility curve. At 0°C, lithium sulfate (36.10 g/100 g) is a bit more soluble than sodium chloride (35.65 g/100 g), At 20°C, lithium sulfate (34.80 g/100 g) is less soluble than sodium chloride (35.89 g/100 g), if the solute is NaCl, the solution will be unsaturated. If the temperature is increased to 60°C (temperature of hot water from the tap), 1.14 g more of NaCl(s) needs to be dissolved in the same 100 g of water to make a saturated solution. As a solvent, we will assume the solubility of a substance in liquids. This is referred to as a supersaturated solution. Thermochimica Acta 1983 , 70 (1-3) , 225-235. The solubility curves for sodium chloride (NaCl) and lithium sulfate (Li2SO4) are plotted in the graph below: The graph shows that as temperature increases, From the graph we can see that if we have a solution containing 35 g of solute in 100 g of water at 40°C, then. Wizer.me free interactive worksheet - Copy of DLD 10- Solubility Curves by teacher Paul Reeves. See the illustration below for an example: Name _____ Date _____ Period _____ Let’s look at the NaNO3 (sodium nitrate) solubility curve. Lincoln, S. F.; Richens, D. T. and Sykes, A. G. (2003) "Metal Aqua Ions" Comprehensive Coordination Chemistry II Volume 1, pp. 6.Infer: Based on your graph, what would you predict is the solubility of sodium chloride at a temperature of 5 °C? Some content on this page could not be displayed. If the temperature rises, the solubility of the majority of solid substances increases. 43.Based on the data table, if 15 grams of solute is dissolved in 100 grams of water at 40°C, how many Will 100 g of potassium nitrate at 50°C in 100 g of water create a saturated solution? In this case the solute is sodium chloride (NaCl(s)) and the solvent is 100 g of water. We predict that the "excess" mass of Li2SO4 in the supersaturated solution will precipitate out of solution (crystallise) until the solution becomes saturated: We predict that 0.80 g of Li2SO(s) will precipitate, or crystallise, out of this solution. Heats of crystallization of potassium chloride and magnesium chloride hexahydrate from aqueous solutions at 298.15 K. A critical review. Common salt has a 1:1 molar ratio of sodium and chlorine. If the temperature rises, the solubility of the majority of solid substances increases. Sodium chloride / ˌsoʊdiəm ˈklɔːraɪd /, commonly known as salt (although sea salt also contains other chemical salts), is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chloride ions. 4. Modern rock salt mine near Mount Morris, New York, United States. 95 °C? What are the exceptions? How many grams will dissolve in 13 grams of water? The solubility is often (although not always) measured as the mass of salt which would saturate 100 grams of water at a particular temperature. 2. The solubility curve of borax is taken from here.. We can infer that solubility of borax at 100°C is around 520g/L. The temperature range shown is approximately 0 to 70 °C. 3. Q. Interpreting Solubility Curves How to read a solubility curve? Let's assume you have a supersaturated solution that contains 35.00 g of litium sulfate dissolved in 100 g of water at a temperature of 30°C as shown by point A (×) on the graph below: Reading off the light blue solubility curve for Li2SO4 at a temperature of 30°C, we see that a saturated solution will contain 34.20 g of Li2SO4 dissolved in 100 g of water. The solubility of a substance depends on: Solubility curves show how the solubility of a solute in a given solvent changes as the temperature changes. With this assumption we can de- termine a solubility curve which is independent of the quality of the sodium chloride used if the concentration measure g NaC1 per 100 g H20 is applied. The mass of CuSO4(s) must be a positive value, that is, mass CuSO4 dissolved in "hot" solution must be greater than the mass of CuSO4 dissolved at lower temperature in order for some solid to precipitate (crystallise) out of solution. Hydrochloric acid is produced by dissolving hydrogen chloride gas in water. Check your predictions with the Gizmo. Activity B (continued from previous page) 5. What are the customary units of solubility on solubility curves? INTERPRETING SOLUBILITY CURVES _____ 1. This curve lies below all the curves shown in fig. Thermochimica Acta 1983 , 70 (1-3) , 225-235. Multiply both sides of equation by volume: Write the equation for mass given density: divide both sides of equation by density: substitute values for 99.82 g water at 40°C: Solubility data for a solubility curve is usually expressed in units of grams of solute per 100 g of solvent (g/100 g) which is a weight ratio concentration (or mass ratio concentration). Check your predictions with the Gizmo. The density of water changes with temperature: As water is heated, its density decreases. Water - Solubility - Ions. Sodium Chloride is a metal halide composed of sodium and chloride with sodium and chloride replacement capabilities. How many grams of ammonium chloride will dissolve in 100 grams of water at 20°C? The amount of solid which dissolves in water at a particular temperature is different for different substances. It is observed that borax in water exhibits supersaturation.When the solution is at 100°C and then you drop at 40°C, then a clear solution is obtained when amount of borax is 60 grams per litre. 5. There is very little change in the amount of sodium chloride At 57°C, you hit the solubility curve. 95 °C? Effects of Na, Ca, Mg, and Al Chloride Salts on Dissolution and Phase Stability of Calcium Sulfate Dihydrate in Aqueous Solutions at 278.15 K to 308.15 K. Journal of Chemical & Engineering Data 2015, 60 (9) , 2559-2566. (i) Calculate mass CuSO4 in saturated solution containing 50 g of water. The graph below shows the solubility curves for potassium nitrate and sodium chloride.. Compare : How does the solubility curve for sodium chloride compare with the solubility curve for potassium nitrate? Solubility data are therefore given as a ratio of the mass of solute to a fixed mass of solvent. Solubility curve of potassium chloride in water. Mass is chosen primarily because the mass of a substance does not change with temperature. A solubility curve shows how the solubility of a salt like sodium chloride or potassium nitrate varies with temperature. 3. Solubility is specific for a particular solvent. 3. 25. 3. 1. Sodium chlorate solubility isotherms are drawn for every 20Â° interval from -20Â° to 100Â°. The solubility of sodium chloride in water is $$36.0 \: \text{g}$$ per $$100 \: \text{g}$$ of water at $$20^\text{o} \text{C}$$. Activity B (continued from previous page) 5. More information about Sodium hydroxide (NaOH). Note the units are grams of solute dissolved in 100 g of water (g/100 g). A measure of how much solute can dissolve in a given amount of solvent. Chris cooled the solution to 20°C and observed the formation of blue copper(II) sulfate crystals. In a typical solubility curve, the relationship is between temperature of the solutions against the grams of the solute per 100 grams of water. To find more Sodium chloride information like chemical properties, structure, melting point, boiling point, density, molecular formula, molecular weight, physical properties and toxicity information. (adsbygoogle = window.adsbygoogle || []).push({}); Want chemistry games, drills, tests and more? _____ 3. As an example, the saturation temperature of a water solution containing 40% NaClO3 and 4% NaCl was estimated: The location of this composition was found to lie between the NaClO3 saturation isotherms for 0Â°C and 20Â°C. There is very little change in the amount of sodium chloride The substances are listed in alphabetical order. Chemistry. TABLE G (SOLUBILITY CURVES) Base your answers to questions 43 and 44 on the data table below, which shows the solubility of a solid solute. Predict the mass of copper(II) sulfate crystals in the conical (erlenmyer) flask at 20°C. 