Look at the solubility curves on the graph below and then answer the following Solubility Chart for Substance A, B, and C Grams per 100g of Water 60 50 40 30 10 882888200 C о 10 20 30 40 50 60 70 80 90 100 Temperature C questions. 1. Which substance is the most soluble at 0°C? At 100°C? 2. 0°Cato Co How many grams of substance "B" will dissolve in 100g of water at 60°C? How about in 400g of water at the same temperature? 3. Which substance shows the least change in solubility from 0°C-100°C? the water what happens to the solubility of

Part A How many moles of solid sodium fluoride should be added to 5.0 L of a saturated solution of barium fluoride, BaF2, at 25 °C to raise the fluoride concentration to 0.029 mol/L ? Express your answer to two significant figures and include the appropriate units. n = 0.11 ? moles Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining

160 140 1. Based on the graph, overall, what happens to the solubility of 120 NaCIo, solid solutes when temperature increases? 100 2. At 10 which solute has the highest solubility? 3. At 10 which solute has the lowest solubility? 4. According to the graph, which substance maintains almost KBr K,Cro. ka constant solubility over the given temperature range? KOO, KM0, 10 20 0 40 so 0 70 s0 KOO. 100 Temperature in degrees C Solubility in grams of anhydrous solute/100gof water "ON'HN

Choose all that you would predict to have a decrease in solubility when Cal2 is added Lil None CaCl2 CaBr2 Nal

Which experimentally measured parameter will help you to decide whether solubility increases or decreases with temperature? A. magnitude of ΔHsoln B. don't need a parameter as increased temperature always increases solubility C. sign of ΔHsoln D. magnitude of ΔHmix E. None of the above

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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)

es Enter your answer in the provided box. The Ksp of metal hydroxide, Mg(OH)2, is 1.20 × 10-¹¹. Calculate the solubility of this compound in g/L. g/L