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Tagged with acid-base stoichiometry
6
questions
6
votes
1
answer
2k
views
Calculating pH in titration of monoprotic weak acid with strong base
$25.0\:\mathrm{ml}$ of $0.10\:\mathrm{M}$ $\ce{CH3COOH}$ is titrated with $0.10\:\mathrm{M}$ $\ce{NaOH}$. What is the $\mathrm{pH}$ after the addition of $30.0\:\mathrm{ml}$ $\ce{NaOH}$?
In broad ...
- 171
2
votes
2
answers
10k
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Why is potassium phosphate KH2PO4 in this reaction?
This is a continuation of this question because the first thing that came in my mind is that why potassium phosphate in this reaction is $\ce{KH2PO4}$ and not $\ce{K3PO4}$?
In the wikipedia article ...
- 26.3k
2
votes
2
answers
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Balanced equation for neutralisation reaction betweeen potassium carbonate and hydrochloric acid
They seem all correct to me, is there any reason why one reaction would happen over the other(s)?
$$\begin{align}
\ce{K2CO3 + 2 HCl &-> 2 KCl + H2CO3}\\[6pt]
\ce{K2CO3 + 2 HCl &-> 2 KCl ...
- 21
5
votes
1
answer
1k
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Back titration of excess HCl used for dissolving limestone
$15.0~\mathrm{mL}$ of $1.4~\mathrm{M}\ \ce{HCl}$ was mixed with $1.00~\mathrm{g}$ of limestone (impure $\ce{CaCO3}$) until all the solid had dissolved. The solution was then transferred to a conical ...
- 51
3
votes
1
answer
1k
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How Many mL of 1.0M HCl Would be Required to Completely Decompose Sucrose into Glucose and Fructose?
I am currently conducting an experiment into the glucose content of certain sports drinks. However, I have hit a roadblock. A majority of the drinks that I intend to test, contain sucrose. I am ...
- 133
-1
votes
2
answers
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Why does vinegar and baking soda yield a far smaller volume of carbon dioxide gas than expected from calculation?
I experimented $\ce{CO2}$ generation by adding $\pu{4 g}$ of $25\%$ acetic acid water solution ($= \pu{1 g}$ of acetic acid) to $\pu{1.4 g}$ of pure baking soda. But this mixture yielded only $50\%$ ...
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