How many grams of KOH would need to be added to 0.5 L of 0.25M NH4Cl...
How many grams of KOH would need to be added to 0.5 L of 0.25M NH4Cl soln to create pH=9.0. (Kb(NH3)=1.8x10^-5)
Homework Answers
first find mols of conjugate
base NH3 from pH of buffer equation,and then write ICE table from
it we can find mols of koh , multiply mols of koh with molar mass
of koh to get mass of koh required to make pH=9.
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How many grams of KOH would need to be added to 0.5 L of 0.25M
NH4Cl...
How many grams of dry NH4Cl need to be added to 1.90 L of a 0.100...
How many grams of dry NH4Cl need to be added to 1.90 L of a 0.100 mol L−1 solution of ammonia, NH3, to prepare a buffer solution that has a pH of 9.00? Kb for ammonia is 1.8×10−5.
How many grams of dry NH4Cl need to be added to 1.50 L of a 0.700...
How many grams of dry NH4Cl need to be added to 1.50 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.
How many grams of dry NH4Cl need to be added to 1.90 L of a 0.800...
How many grams of dry NH4Cl need to be added to 1.90 L of a 0.800 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.74? Kb for ammonia is 1.8×10^-5.
How many grams of dry NH4Cl need to be added to 2.40 L of a 0.400...
How many grams of dry NH4Cl need to be added to 2.40 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.
How many grams of dry NH4Cl need to be added to 1.70 L of a 0.500...
How many grams of dry NH4Cl need to be added to 1.70 L of a 0.500 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.80? 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...
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 8.52? Kb for ammonia is 1.8×10−5.
How many grams of dry NH4Cl need to be added to 1.70 L of a 0.500...
How many grams of dry NH4Cl need to be added to 1.70 L of a 0.500 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.51? Kb for ammonia is 1.8 x 10^-5.
How many grams of dry NH4Cl need to be added to 2.00 L of a 0.700...
How many grams of dry NH4Cl need to be added to 2.00 L of a 0.700 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 9.00? 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 1.90 L of a 0.800...
How many grams of dry NH4Cl need to be added to 1.90 L of a 0.800 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.74? Kb for ammonia is 1.8×10^−5. Express your answer with the appropriate units.
4B. How many grams of dry NH4Cl need to be added to 1.80 L of a...
4B. How many grams of dry NH4Cl need to be added to 1.80 L of a 0.100 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.93? Kb for ammonia is 1.8×10^−5. Express your answer with the appropriate units.
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