Use 0.50L of the buffer made from 2.5M citric acid and 0.5M sodium citrate to answer the following: The Ka of citric acid is 8.4 x 10-4 How many moles of acid are present in the buffer? [ Select ] ["1.25 mol", "0.25 mol", "0.20 mol", "3.0 mol"] How many moles of base are present in the buffer? [ Select ] ["3.0 mol", "0.25 mol", "0.20 mol", "1.25 mol"] What is the total volume of the solution if 0.025L of NaOH is added to the buffer? ["0.50 L", "0.525L", "0.025 L", "0.013 L"]
Use 0.50L of the buffer made from 2.5M citric acid and 0.5M sodium citrate to answer the following:
The Ka of citric acid is 8.4 x 10-4
How many moles of acid are present in the buffer? [ Select ] ["1.25 mol", "0.25 mol", "0.20 mol", "3.0 mol"]
How many moles of base are present in the buffer? [ Select ] ["3.0 mol", "0.25 mol", "0.20 mol", "1.25 mol"]
What is the total volume of the solution if 0.025L of NaOH is added to the buffer?
["0.50 L",
"0.525L",
"0.025 L",
"0.013 L"]
How many moles of OH- are present in 0.025L of 3.0M NaOH?
["0.008 mol",
"3.025 mol",
"6.0 mol",
"0.075 mol"]
Calculate the pH if 0.025L of 3.0M NaOH is added to the buffer.
["pH = 2.20",
"pH = 2.52",
"pH = 7.57",
"pH = 2.25"]
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