Home / Questions / A Calculate the pH of a 0.10 M solution of barium hydroxide, Ba(OH)2. Express your answer ...
A
Calculate the pH of a 0.10 M solution of barium hydroxide, Ba(OH)2. Express your answer numerically using two decimal places.
B
Calculate the pH of a 0.10 M solution of NaOH.
Express your answer numerically using two decimal places.
C
Calculate the pH of a 0.10 M solution of hydrazine, N2H4. Kb for hydrazine is 1.3Ã—10âˆ’6.
Express your answer numerically using two decimal places.
D
Calculate the pH of a 0.10 M solution of hypochlorous acid, HOCl. Ka of HOCl is 3.5Ã—10âˆ’8.
Express your answer numerically using two decimal places.
E
Calculate the pH of a 0.10 M solution of HCl.
Express your answer numerically using two decimal places.
2)
Ammonia, NH3, is a weak base with a Kb value of 1.8Ã—10^âˆ’5.
Part A
What is the pH of a 0.425 M ammonia solution?
Express your answer numerically to two decimal places.
Part B
What is the percent ionization of ammonia at this concentration?
Express your answer with the appropriate units.
3)
Part A
If Kb for NX3 is 3.5Ã—10^{âˆ’6}, what is the pOH of a 0.175 M aqueous solution of NX3?
Express your answer numerically.
Part B
If Kb for NX3 is 3.5Ã—10^{âˆ’6}, what is the percent ionization of a 0.325 M aqueous solution of NX3?
Express your answer numerically to three significant figures.
Part C
If Kb for NX3 is 3.5Ã—10^{âˆ’6} , what is the the pKa for the following reaction?
HNX3+(aq)+H2O(l)â‡ŒNX3(aq)+H3O+(aq)
Express your answer numerically to two decimal places.
4)
For each strong base solution, determine [H3O+],[OHâˆ’], pH, and pOH.
Part A
8.86Ã—10^{âˆ’3} M LiOH
Express your answer using three significant figures. Enter your answers numerically separated by a comma.
Part B
8.86Ã—10^{âˆ’3} M LiOH
Express your answer to three decimal places. Enter your answers numerically separated by a comma.
Part C
1.10Ã—10^{âˆ’2} M Ba(OH)2
Express your answer using three significant figures. Enter your answers numerically separated by a comma.
Part D
1.10Ã—10^{âˆ’2} M Ba(OH)2
Express your answer to three decimal places. Enter your answers numerically separated by a comma.
5)
A
What is the conjugate base of HCO3âˆ’?
Express your answer as a chemical formula.
B
What is the conjugate acid of HPO42âˆ’ ?
Express your answer as a chemical formula.
6)
Determine the pH of each solution.
Part A
0.20 M KCHO2
Express your answer to two decimal places.
Part B
0.21 M CH3NH3I
Express your answer to two decimal places.
Part C
0.22 M KI
Express your answer to two decimal places.
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