3 years ago

Where do we get our energy from ?

Chemistry

2 answers:

kkurt [141]3 years ago

8 0

From food which we eat

Oksana_A [137]3 years ago

3 0

Answer:

energy

Explanation:

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What is the concentration of H+ ions at a pH = 11?

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Answer:

$\huge 1 × {10}^{-11} \: \: M$

Explanation:

The pH of a solution can be found by using the formula

$pH = - log [ {H}^{+} ]$

Since we are finding the H+ ions we find the antilog of the pH

So we have

$11 = - log({H}^{+}) \\ {H}^{+} = {10}^{ - 11}$

We have the final answer as

$1 × {10}^{-11} \: \: M$

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