Question 42

Calculate the soluilbity of solid Ca3(PO4)2  (Ksp= 1.3 E-32) in a 0.20 M NaPO4 solution.

Question 41

Calculate the molar solubility of Co(OH)3, Ksp= 2.5 E-43.

Question 40

The solubility of the ionic compound M2X3, having a molar mass of 288 g/mol, is 3.6 E-7 g/L. Calculate the Ksp value of the compound.

Question 39

Estimate the pH of a solution in which bromcresol green is blue and thymol blue is yellow.

Question 38

A o.15M solution of a weak acid is 3.0% dissociated.  Calculate Ka.

Question 37

A solution is prepared by adding 50.0 mL of 0.050M HCl to 150.0 mL of 0.10M HNO3.  Calculate the concentration of all species in this solution.

Question 36

Which is a stronger acid, H2O or HNO2?

Question 35

Which is the stronger acid, HCl or H2O?

Question 34

Write the balanced equation for the dissociation of ammonium ion in water.

Question 33

Of the hydrogen allides, only HF is a weak acid.  GIve a possible explanation.