3 years ago

When do acids follow the same naming conventions as other covalent componds

Chemistry

1 answer:

Valentin [98]3 years ago

3 0

Jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjgccccccccccccccccccccc

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Determine the ph of a 0.500 m hno2 solution. Ka of hno2 is 4.6 × 10−4.

Mumz [18]

Answer: pH of a 0.500 M $HNO_2$ solution is 1.82

Explanation:

$HNO_2\rightarrow H^++NO_2^-$

cM 0 0

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

So dissociation constant will be:

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

Give c= 0.500 M and $\alpha$ = ?

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

Putting in the values we get:

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

$(\alpha)=0.030$

$[H^+]=c\times \alpha$

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

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

$pH=-log[0.015]=1.82$

Thus pH of a 0.500 M $HNO_2$ solution is 1.82

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7C7H6O3 + 8C4H6O3 = 9C9H8O4·H2O

Explanation:

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