Question

How many grams of dry NH4Cl need to be added to 2.50 L of a 0.500 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.69? Kb for ammonia is 1.8×10−5?

Answer #1

How many grams of dry NH4Cl need to be added to 2.20 L of a
0.500 M solution of ammonia, NH3, to prepare a buffer
solution that has a pH of 8.62? Kb for ammonia is
1.8×10−5.

How many grams of dry NH4Cl need to be added to 2.50 L of a
0.800 Msolution of ammonia, NH3, to prepare a buffer
solution that has a pH of 8.84? Kb for ammonia is
1.8×10−5.

How many grams of dry NH4Cl need to be added to 2.50 L of a
0.700 M solution of ammonia, NH3, to prepare a buffer
solution that has a pH of 8.56? Kb for ammonia is
1.8×10−5.
Express your answer numerically in grams to three significant
figures.

How many grams of dry NH4Cl need to be added to 1.80 L of a
0.400 M solution of ammonia, NH3, to prepare a buffer solution that
has a pH of 8.83? Kb for ammonia is 1.8×10−5.

How many grams of dry NH4Cl need to be added to 2.00 L of a
0.300 M solution of ammonia, NH3, to prepare a buffer solution that
has a pH of 8.64? Kb for ammonia is 1.8×10−5.

How many grams of dry NH4Cl need to be added to 2.10 L of a
0.700 M solution of ammonia, NH3, to prepare a buffer
solution that has a pH of 8.57? Kb for ammonia is
1.8×10−5.

How many grams of dry NH4Cl need to be added to 1.60 L of a
0.800 M solution of ammonia, NH3, to prepare a buffer solution that
has a pH of 8.81? Kb for ammonia is 1.8×10−5.

How many grams of dry NH4Cl need to be added to 1.80 L of a
0.400 M solution of ammonia, NH3, to prepare a buffer solution that
has a pH of 8.60? Kb for ammonia is 1.8×10−5. Express your answer
with the appropriate units.

How many grams of dry NH4Cl need to be added to 1.50 L of a
0.100 M solution of ammonia, NH3, to prepare a buffer solution that
has a pH of 8.82? Kb for ammonia is 1.8×10−5. Express your answer
with the appropriate units.

How many grams of dry NH4Cl need to be added to 1.60 L of a
0.100 M solution of ammonia, NH3 , to prepare a buffer
solution that has a pH of 8.55? Kb for ammonia is 1.8×10−5
. May you please show step by step how the answer was achieved?

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