3 years ago

If I use 0.0395 kg of water to dissolve 0.0189 kg of salt, what is the mass percent of this solution?

Chemistry

1 answer:

Aloiza [94]3 years ago

3 0

54.4% I'm not sure but it is

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Determine the pH of 0.050 M HCN solution. HCN is a weak acid with a Ka equal to 4.9 x 10-10<br> DONE

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The pH of the solution is 5.31.

Explanation:

Let " $\alpha$ is the dissociation of weak acid - HCN.

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