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CaSO4 dissolves into 32.0 °C water. That resultant solution is saturated when you have 0.209 grams...
A saturated solution of CaSO4 is made by dissolving excess solid CaSO4 in a 1 L solution of 0.077 M Na2S04. When the solid CaSO4 is added to the solution only 43. 3 mg of the solid actually dissolves. Find the Ksp for CaSO4. (A) 2. 66 x 10-5 (B) 2. 58 x 10-5 (C) 2. 88 x 10-5 (D) 2. 46 x 10-5 (E) 2. 73 x 10-5 Submit
1. If 1.70 x 10-4 moles of Agt(aq) dissolves per liter of water when AglO3 is dissolved, what is the Ksp for AgIO3 ? 2. If you have a solution of Cat2 that has a concentration of 0.050 M, and you adjust the pH of the solution to 8.00, will Ca(OH)2 precipitate. (Ksp for Ca(OH)2 = 6.5 x 106) 3. Determine the concentration of fluoride ion in a saturated solution of PbF2 (in moles/liter), if the Ksp = 3.6 x...
g of sodium nitrate (NaNO,) dissolves in 100 g of water at 20°C. Is this solution saturated or unsaturated? Wha t would happen if you added ten more grams of sodium nitrate to the solution? What would if you added the ten grams and raised the temperature to 40 C? lution is unsaturated. Adding ten additional grams of solute (NaNO,) would result in a homo geneous solution. Raising the temperature of the solution by 20°C would not affect the solution...
The boiling point of water is 100.00 °C at 1 atmosphere. A student dissolves 12.31 grams of cobalt(II) acetate, Co(CH3COO)2 (177.0 g/mol), in 287.1 grams of water. Use the table of boiling and freezing point constants to answer the questions below. Solvent Formula Kb (°C/m) Kf (°C/m) Water H2O 0.512 1.86 Ethanol CH3CH2OH 1.22 1.99 Chloroform CHCl3 3.67 Benzene C6H6 2.53 5.12 Diethyl ether CH3CH2OCH2CH3 2.02 The molality of the solution is _____m. The boiling point of the solution is °____C....
6. When a student dissolves 41.41 grams of NaNO, in 300. g. of water at 24.11 deg. C, 10.0 kJ of hea are are absorbed from the water. a. what is the q for the water? b. what is the AH for the solution process in kJ/mol? c. Write a balanced equation and use Hess's Law to determine the theoretical heat of solution in kJ/n
You have a powder that dissolves in water to form a strong acid. You dissolve 2g of the powder in 100ml of water, and measure the pH to be 4. You would like to form 100ml of a solution with pH 5. How many grams of the powder do you dissolve in 100ml of water? 0.2 g 0.4 g 20 g 40 g
Section Laboratory Caleulations 1.A.0 ml sample of NaCl solution was 5057 grams. When the water was evaporated, the residual salt weighed 1.285 grams (10 pts) Fill in the data table below using the information given Mass of salt solution Mass of NaCl Mass of water Volume of solution Using the information from the data table, calculate: a. The % weight-weight of NaCl in the solution. b. The grams of NaCl per 100 grams of water. C. The molarity of the...
MgF2(s) <--> Mg2+(aq) + 2 F–(aq) In a saturated solution of MgF2 at 18 0C, the concentration of Mg2+ is 1.21 x 10–3 molar. The equilibrium is represented by the equation above. (a) Write the expression for the solubility-product constant, Ksp, and calculate its value at 18 0C. (b) Calculate the equilibrium concentration of Mg2+ in 1.000 liter of saturated MgF2 solution at 18 0C to which 0.100 mole of solid KF has been added. The KF dissolves completely. Assume...
When extracting a solution containing 4.0 grams of butyric acid in 100.0 mL of water with 50.0 mL of benzene, at 15 ° C, 2.4 grams of the acid pass to the organic phase. What is the distribution coefficient of butyric acid in this system?
you add an excess of ca(oh)2 to water maintained at particular temperature, stir until the solution is saturated, filter, then determine the OH in the solution by titration with acid. titration of 10.0 ml of the calcium hydroxide solution to the end point requires 4.86 ml of 0.070 M HCl solution. what is the molar quantity of OH- in the 10.0 ml of solution? what are the concentrations of Ca2+ and OH- ? WHAT IS THE SOLUBILITY OF Ca(OH)2 under...