4 years ago

If your creating a machine that will clean up trash from the ocean is that adding or removing thermal energy?

Chemistry

1 answer:

bogdanovich [222]4 years ago

6 0

Answer: adding

Explanation:

Because it takes thermal energy to power it

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A solution has a pH = 4.63. What is the [H3O+] concentration?

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Explanation:

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

$pH = - log [ { H_3O}^{+}]$

Since we are finding the [H3O+] , substitute the value of the pH and find it's antilog

We have

$4.63 = - log[ { H_3O}^{+}] \\ [ { H_3O}^{+}] = {10}^{ - 4.63} \\ \\ = 2.344 \times {10}^{ - 5} mol {dm}^{ - 3}$

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