An analytical chemist is titrating 225.7 mL of a 1.100M solution of cyanic acid (HCNO) with a 1.100M solution of KOH. ThepK, of cyanic acid is 3.46 Calculate the pH of the acid solution after the chemist has added 267.8 mL of the KOH solution to it. Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of KOH solution added. Round your answer to 2 decimal places.
An analytical chemist is titrating 225.7 mL of a 1.100M solution of cyanic acid (HCNO) with a 1.100M solution of KOH. ThepK, of cyanic acid is 3.46 Calculate the pH of the acid solution after the chemist has added 267.8 mL of the KOH solution to it. Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of KOH solution added. Round your answer to 2 decimal places.
Chemistry: An Atoms First Approach
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Chapter14: Acid- Base Equilibria
Section: Chapter Questions
Problem 97AE: A student intends to titrate a solution of a weak monoprotic acid with a sodium hydroxide solution...
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Transcribed Image Text:An analytical chemist is titrating 225.7 mL of a 1.100M solution of cyanic acid (HCNO) with a 1.100M solution of KOH. The p K, of cyanic acid is 3.46.
Calculate the pH of the acid solution after the chemist has added 267.8 mL of the KOH solution to it.
Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of KOH solution added.
Round your answer to 2 decimal places.
pH =
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Explanation
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![The preparations of two aqueous solutions are described in the table below. For each solution, write the chemical formulas of the major species present at
equilibrium. You can leave out water itself.
Write the chemical formulas of the species that will act as acids in the 'acids' row, the formulas of the species that will act as bases in the 'bases' row, and the
formulas of the species that will act as neither acids nor bases in the 'other' row.
You will find it useful to keep in mind that HCH,CO, is a weak acid.
acids: I
1.3 mol of NAOH is added to
0,0..
1.0 L of a 1.3 M HCH,CO2
bases:
solution.
other:
0.093 mol of HI is added to
acids:
1.0 L of a solution that is
bases: ]
1.1M in both HCH,CO,
and KCH,CO2.
other: []
Check
Explanation
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Transcribed Image Text:The preparations of two aqueous solutions are described in the table below. For each solution, write the chemical formulas of the major species present at
equilibrium. You can leave out water itself.
Write the chemical formulas of the species that will act as acids in the 'acids' row, the formulas of the species that will act as bases in the 'bases' row, and the
formulas of the species that will act as neither acids nor bases in the 'other' row.
You will find it useful to keep in mind that HCH,CO, is a weak acid.
acids: I
1.3 mol of NAOH is added to
0,0..
1.0 L of a 1.3 M HCH,CO2
bases:
solution.
other:
0.093 mol of HI is added to
acids:
1.0 L of a solution that is
bases: ]
1.1M in both HCH,CO,
and KCH,CO2.
other: []
Check
Explanation
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