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Aloiza [94]
3 years ago
13

16. The concentration of a solution of potassium hydroxide is determined by titration with nitric

Chemistry
1 answer:
____ [38]3 years ago
3 0

Answer:

M_{base}=0.709M

Explanation:

Hello,

In this case, since the reaction between potassium hydroxide and nitric acid is:

KOH+HNO_3\rightarrow KNO_3+H_2O

We can see a 1:1 mole ratio between the acid and base, therefore, for the titration analysis, we find the following equality at the equivalence point:

n_{acid}=n_{base}

That in terms of molarities and volumes is:

M_{acid}V_{acid}=M_{base}V_{base}

Thus, solving the molarity of the base (KOH), we obtain:

M_{base}=\frac{M_{acid}V_{acid}}{V_{base}} =\frac{0.498M*42.7mL}{30.0mL}\\ \\M_{base}=0.709M

Regards.

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This is hard to show but here is how you would determine these. NOTE each dot is an electron. 
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<span>1) determine the valance electrons for each. F has 7 and H has 1 </span>
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<span>.. </span>
<span>F-H </span>
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<span>Question 2) </span>

<span>2) H-O-H </span>
<span>H has 1 valence electron minus 1 used in the bond to O = 0 electrons to place </span>
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<span>Question 3) </span>
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3 years ago
At construction sites, workers often reduce erosion by ____.
Naddik [55]
<h3><u>Answer;</u></h3>

<em>All the above</em>

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