Find out the ksp of ca(oh)

Reference no: EM13195660

An experiment was performed to determine the Ksp of Ca(OH)_2_. A solution containing 2.00 x ^-2 M Ca(NO3)_2_ was saturated with Ca(OH)_2_ and filtered. Two samples of the saturated solution were titrated with 5.021x10^-2 M HCI, in order to determine the OH^- ion concentration in the saturated solution.

In doing this problem, note that 1 mol of HCI reacts with 1 mol of OH^- ions. This relationship is the basis for the determination of the OH^- ion concentration: 1 mol Ca^2+ ions are produced for every 2 moles of OH^- ions produced. The resulting form this experiment are shown below: Student date KSP of Ca(OH)_2_

Volume of saturated Ca(OH)_2_ solution titrated, mL____Determination #1 52.2 Determination #2 48.7

Volume of 5.021x10 ^-2 M HCI required, mL------Determination #1 16.44 Determination #2 15.49

Temperature of saturated solution 20.4

a. Number of moles of OH^- ions titrated, mol___Determination #1 & #2

b. [OH^-] sat. sol'n

c. [Ca^2+]initial

d. [Ca^2+]from dissolved Ca(OH)_2_

e. [Ca^2+]sat. sol'n

f. Ksp

g. average Ksp

Reference no: EM13195660

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