2. 48.7 mL of 0.664 M nitric acid is added to 40.9 mL of calcium hydroxide , and
ID: 1014176 • Letter: 2
Question
2.
48.7 mL of 0.664 M nitric acid is added to 40.9 mL of calcium hydroxide, and the resulting solution is found to be acidic.
29.9 mL of 0.579 M potassium hydroxide is required to reach neutrality.
What is the molarity of the original calcium hydroxide solution?
moles of water
The reaction consumes moles of benzene (C6H6) The reaction produces moles of carbon dioxide and2.
48.7 mL of 0.664 M nitric acid is added to 40.9 mL of calcium hydroxide, and the resulting solution is found to be acidic.
29.9 mL of 0.579 M potassium hydroxide is required to reach neutrality.
What is the molarity of the original calcium hydroxide solution?
moles of water
Explanation / Answer
1)
a)
from balanced chemical equation,
mol of C6H6 consumed = (2/15)*moles of O2 react
= (2/15)*60 moles
= 8 moles
Answer: 8
b)
from balanced chemical equation,
mol of CO2 produced = (2/15)*moles of O2 react
= (12/15)*60 moles
= 48 moles
Answer: 48
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