3 years ago

What forces hold molecular solids together?

Chemistry

1 answer:

Paraphin [41]3 years ago

3 0

Answer:

Intermolecular forces

Explanation:

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Determine the pH of a 0.500 M HNO2 solution. Ka of HNO2 is 4.6 * 10-4.

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Explanation:

$HNO_2\rightarrow H^+NO_2^-$

cM 0 0

$c-c\alpha$ $c\alpha$ $c\alpha$

So dissociation constant will be:

$K_a=\frac{(c\alpha)^{2}}{c-c\alpha}$

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$K_a=4.6\times 10^{-4}$

Putting in the values we get:

$4.6\times 10^{-4}=\frac{(0.500\times \alpha)^2}{(0.500-0.500\times \alpha)}$

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$[H^+]=0.500\times 0.030=0.015$

Also $pH=-log[H^+]$

$pH=-log[0.015]=1.82$

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3 years ago

Explain the difference between the reacts and products of a chemical reaction

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