a saturated solution of a salt was made by adding 36.00 g to 150.0 g water. There was 5.00 g of salt on the bottom that did not dissolve. What is the % solubility of the salt?

13) What is the solubility in mol/L of CH4 at a partial pressure of 238.0 torr, if the solubility at a partial pressure of 328.5 torr is 0.0005620 mol/L? a) 0.0004072 M            b) 458.9 M c) 917.9 M d) 0.002179 M

Question 4 Three students studied the following solubility curve. They were asked to determine the 160 KNO, amount of NH,CI that needs to be added to 58 g NH CI to create a saturated solution at 140 NaNO 80°C. 120 100 KBr Student 1 said 25 g more would need to be added, student 2 said 22 g and student 3 said 17g NH CI needs to be added. NH C NaCi Which student is correct? Provide 20 evidence from the solubility curve to support your claim. 10 20 30 40 50 60 Temperature ("C) 70 80 90 Solubility (g/100 g H,0)

Question 5 Examine the solubility curve and state whether the following is an unsaturated or saturated solution? Provide evidence to support your claim. Temperature Effects on Solubility 240 Potassium nitrate. 200 (KNO,) a. 90 g Naclo, at 40°C 160 Sodium chlorate 120 (NaCIO,) b. 125 g KBr at 70•C c. 81 g KNO, at 60-C 80 Potassium bromide (KBr) 40 Sodium chloride (NaCi) O 10 20 30 40 50 60 70 80 90 Temperature ("C) Solubility (grams per 100 g of water)

Consider the solubilities of a particular solute at two different temperatures. Temperature (C) Solubility (g/100 g H,O) 20.0 41.3 30.0 71.3 Suppose a saturated solution of this solute was made using 77.0 g H,O at 20.0 °C. How much more solute can be added if the temperature is increased to 30.0 °C? mass: g * TOOLS x10

Calculate the molarity if a 20.703-mL sample of solution is evaporated to dryness and leaves 0.29 g of solid residue that is identified as Li2SO4. MW = 109.94 g/mol)

If 120 grams of KI is added at 10°C is the solution saturated, unsaturated, or supersaturated?

2. The police found a small zip-lock bag containing 15.36 gram of a powder on the victim's nightstand. To find out what the substance was, the forensic scientist added it to 80-ml solution of 1.0 mol/L NaCl and analyzed the products. One product was a precipitate with the mass of 10.46g . The other product was sodium nitrate. The lab technician quickly ran the analysis on the precipitate and found the molar mass of this precipitate is 278.10 g/mol. What could be the name and formula of the precipitate? Write the balanced chemical equation and net ionic equation for the reaction, including the states. Determine the limiting and excess reactant in b). What is the percentage yield of the precipitate? . If the value is less than 80%, eliminate the study. . If the value is more than 80%, eliminate the bathroom. Calculate the remaining concentration of the excess reagent after the reaction is over. . If the value is less than 0.09 mol/L, eliminate the wine cellar . If the value is more than…

What happens if a solute is added to a saturated solution?   A) Nothing will happen, solute will not mix with a saturated solution. B) The added solute provides a template for the solid to begin to crystallize from solution, and a precipitate will form. C) The added solute makes the solution less saturated. D) The added solute provides a template for the gas to begin to boil from solution, and a gas will form.   Why is A false?

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