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Tasya [4]
3 years ago
8

Why are we only able to use 1/4 of the water on Earth?

Chemistry
1 answer:
malfutka [58]3 years ago
6 0

Well most water on Earth is in the oceans, which is made of salt water.

hope this helps, good luck! :)

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<h3>The answer is 4.41 g/cm³</h3>

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How many grams of sodium hydroxide are needed to make 250. Ml of a 7.80 m solution?
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<h3><u>Answer;</u></h3>

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Concentration = Moles of solute/Volume of solution

Thus;

Moles of the solute = Volume × Concentration

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But; 1 mole of NaOH = 40.0 g

Thus;

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