The reaction of the weak acid HCN with the strong base KOH is HCN(aq) + KOH(aq) HOH(1) + KCN(aq) To compute the pH of the resulting solution if 63 mL of 0.88 M HCN is mixed with 32 mL of 0.34 KOH, we need to start with the stoichiometry. Let us do just the stoichiometry in steps. How many moles of acid? How many moles of base? What is the limiting reactant? How many moles of the excess reactant after reaction? What is the concentration of the excess reactant after reaction? What is the concentration of the pH active product after reaction? number of moles: number of moles: limiting reactant: number of moles: concentration: concentration:
The reaction of the weak acid HCN with the strong base KOH is HCN(aq) + KOH(aq) HOH(1) + KCN(aq) To compute the pH of the resulting solution if 63 mL of 0.88 M HCN is mixed with 32 mL of 0.34 KOH, we need to start with the stoichiometry. Let us do just the stoichiometry in steps. How many moles of acid? How many moles of base? What is the limiting reactant? How many moles of the excess reactant after reaction? What is the concentration of the excess reactant after reaction? What is the concentration of the pH active product after reaction? number of moles: number of moles: limiting reactant: number of moles: concentration: concentration:
General Chemistry - Standalone book (MindTap Course List)
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Chapter15: Acids And Bases
Section: Chapter Questions
Problem 15.19QP: Acids You make a solution by dissolving 0.0010 mol of HCl in enough water to make 1.0 L of solution....
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Question
Transcribed Image Text:The reaction of the weak acid HCN with the strong base KOH is
HCN(aq) + KOH(aq)
HOH(l) + KCN(aq)
To compute the pH of the resulting solution if 63 mL of 0.88 M HCN is mixed with 32 mL of 0.34 KOH, we need to start with
the stoichiometry. Let us do just the stoichiometry in steps.
How many moles of acid?
How many moles of base?
What is the limiting reactant?
How many moles of the excess reactant after reaction?
What is the concentration of the excess reactant
after reaction?
What is the concentration of the pH active product
after reaction?
number of moles:
number of moles:
limiting reactant:
number of moles:
concentration:
concentration:
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