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please answer both question. if cant please answer the question numer 3 2. How many grams...
12. How many grams of NaF must be added to 2.00 L of 0.100 M HF to yield a solution with a pH = 4.00 Note: Ka HF ...see question #8. a) 300 g b) 36 g c) 0.84 g d) 6.9 g e) 56.38 1 .18 10-5 and 0
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.
How many grams of dry NH4Cl need to be added to 1.70 L of a 0.100 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 2.30 L of a 0.100 M solution of ammonia,NH3, to prepare a buffer solution that has a pH of 9.00? Kb for ammonia is 1.8x 10^-5.
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 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 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 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 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.
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 8.74? Kb for ammonia is 1.8*10^-5.