3 years ago

Confused as to what this questions is asking

1 answer:

8 0

What is the total number of the element of 2 valence. How many elements does the 2 valence has. Hope this made sense.

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olga2289 [7]

Explanation:

According to the Henderson-Hasselbalch equation,

pH = $pK_{a}$ + $\frac{log[A^{-}]}{[HA]}$

Given values are pH = 6, $pK_{a}$ = 8

Putting given values into the above equation as follows.

6 = 8 + $\frac{log [A^{-}]}{[HA]}$

$\frac{log[A^{-}]}{[HA]}$ = -2

$\frac{[A^{-}]}{[HA]}$ = antilog -2

= 0.01

But according to the question, we need protonated to deprotonated ratio of $\frac{[HA]}{[A^{-}]}$

$\frac{[HA]}{[A^{-}]}$ = $\frac{1}{0.01}$

$\frac{[HA]}{[A^{-}]}$ = 100

Thus, we can conclude that ratio of the protonated to the deprotonated form of the acid is $\frac{100}{1}$ .

7 0

3 years ago

Liula [17]

The answer is steel because you cannot pick water, oxygen, or gold out of a mixture.

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3 years ago

Ilya [14]

SI ( System of units )

hope this helps!

6 0

3 years ago

Lady_Fox [76]

The answer will be a

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3 years ago

Alex Ar [27]

The effect that it makes is it turns it into acidic

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3 years ago