9) What is the gram solubility of CaF2 in 100.0 mL of pure water at 25 degree C. The solubility product constant of CaF2 is 3.9*10^-11. The molar mass is 78.1 g/mol.
please show work c. Consider the dissolution of CaF2 in water. The Ksp of CaF2 is 1.5 x 1010 at 25°C Qualitatively, what would the addition of 10 g of solid CaF2 to 100 g of water look like? d. The enthlapy of solution for CaF2 is +13.4 kJ/mol at 25°C. If the temperature is lowered to 10° C, what change(s) if any will result to Ksp? Justify your answer. e. A solution is prepared mL of 0.0010 M NaF....
Solubility of CaF2 at 25°C is S= 20 x 10 mol/L. Calculate Kp of this salt at 25°C. Write equilibrium between solid and ions in solution What are concentrations of Ca and Fin saturated solution of CaF:? [Ca2+] = Write expression for Kap of CaF, as a function of [Ca] and IF1 Give calculated value of K.
2) The solubility product for calcium fluoride (CaF2, MW largest 78.1 g/mol) is Kp 4.0 x 10-11 What is the mass of calcium fluoride that can dissolve in 250.0 mL of water? 2) The solubility product for calcium fluoride (CaF2, MW largest 78.1 g/mol) is Kp 4.0 x 10-11 What is the mass of calcium fluoride that can dissolve in 250.0 mL of water?
Please show work! 3. The data graphed at the right was obtained when 4.00 g of a salt (molar mass = 80.0 g/mol) was dissolved in 100 mL of water in a Styrofoam cup calorimeter. a. Is the process exothermic or endothermic? b. Calculate AT. c. What is the AHrxn for the system in kJ/mol? Show your work. (Assume the Ccup is negligible)
A compound is found to have a molar mass of 598 g/mol. If 35.8 mg of the compound dissolved in enough water to make 175 ml of solution at 25 degrees C what is the osmotic pressure of the resulting solution ?
4. When 10 g of benzene (Molar mass 78 g/mol) reacts with 9 mL of concentrated HNO3 (16 M) and 9 mL of H2SO4 (18 M), 8.1 g of nitrobenzene (molar mass 123 g/mol) and 1.2 g of an unknown compound with a high boiling point are obtained. a. Identify the limiting reagent. b. Calculate the percent yield of nitrobenzene. c. Give the name and structure of the most probable side product with the high melting point. d. Explain, with...
The molar mass of hydrogen fluoride, HF, is 20.00 g/mol. If 17.0 grams of HF are dissolved in water to give 200.0 mL solution, what is the molaroty of this solution?
Ksp for Ag2CO3 (molar mass = 276 g/mol) is 3.50x10-6. Into a 100.00 mL saturated Ag2CO3 solution, 0.0200 mol of Na2CO3 solid is added. How many grams (3 sig fig) of solid will precipitate? (hint: find how many moles of Ag2CO3 is dissolved in pure water, and how many moles is dissolved in Na2CO3 solution. The difference is how many moles will precipitate out from solution.)
Let’s consider a solution of 100 g of glucose (with a molar mass of 180 g/mol) dissolved in 1 L of water. a) What is the osmotic pressure of the solution at 25˚C? b) At what temperature will the solution freeze?