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WorksheetspH and Solubility
Total questions: 10
Worksheet time: 14mins
Adding an acid to a solution does which of the following?
Adds hydroxide to the solution
Adds hydrogen ions to the solution.
increases the pH
Adding a base to a solution does which of the following?
decreases the pH
adds hydrogen ions to the solution
adds hydroxide to the solution
Which of the following equation represents the equilibrium equation of solubility of BaSO4 in water ?
BaSO4(s) ↔ Ba2+(aq) + 2SO4-(aq)
BaSO4(s) ↔ Ba+(aq) + 4SO-(aq)
BaSO4(s) ↔ Ba+(aq) + SO4-(aq)
BaSO4(s) ↔ Ba2+(aq) + SO42-(aq)
Which of the following equation represents the equilibrium equation of solubility of Cr(OH)3 in water ?
Cr(OH)3(s) ↔ Cr3+(aq) + OH3-(aq)
Cr(OH)3(s) ↔ Cr+(aq) + OH3-(aq)
Cr(OH)3(s) ↔ Cr3+(aq) + 3OH-(aq)
Cr(OH)3(s) ↔ 3Cr+(aq) + OH3-(aq)
Which of the following are ALL strong acids?
HCN, HBr,HF
HNO3, HNO2, HSO4-1
HCl, HBr, HNO3
HCl, HCOOH, HI
The addition of nitric acid (HNO3) increases the solubility of which of the following solids?
KCl
Pb(CN)2
Cu(NO3)2
NH4NO3
Sr(OH)2(s) ↔ Sr+2(aq) + 2OH-1(aq)
When HCl is added: H+(aq) + OH-1(aq) → H2O(l)
What effect does the addition of the acid have on the solubility of strontium hydroxide?
the solubility increases because some of the OH-1 is removed and the equilibrium shifts to the left.
the solubility increases because some of the OH-1 is removed and the equilibrium shifts to the right
the solubility decreases because the hydroxide is removed
the acid does not affect the solubility of the magnesium hydroxide
BaF2(s) ↔ Ba+2(aq) + 2F-1(aq)
HF ↔ H+1(aq) + F-1(aq)
What would increase the solubility of barium fluoride?
adding an acid because the hydrogen will react with the fluoride to form HF and the solubility equilibrium will shift to the right.
adding barium nitrate because adding more barium will cause a shift to the left
adding potassium fluoride because adding more fluoride will cause a shift to the left
Zinc hydroxide is a sparingly soluble base. If you add sodium hydroxide to a solution of zinc hydroxide, what will happen?
The addition will have limited impact.
The solubility of zinc hydroxide will increase.
The solubility of zinc hydroxide will decrease.
We would need to know the molar concentrations of each substance in order to answer this question.
Ag(OH)2(s ) ↔ Ag+1(aq) + 2OH-1(aq)
What shift in equilibrium causes a decrease in the solubility of silver hydroxide?
a shift to the right because there are more ions
a shift to the left because more of the solid means less has dissolved thus decreasing the solubility.
