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3 years ago

8

the relative molecular mass of sodium hydroxide is 40. if 60 grams of sodium hydroxide are dissolved in water how many moles wil

l there be in the solution?

1 answer:

goldfiish [28.3K]3 years ago

7 0

The formula to find the amount of moles of a substance used is: actual mass divided by relative molecular mass.

Therefore,
60/40 = 1.5 moles

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Explanation:

<h2>(a).</h2>

The density of a substance can be found by using the formula

$density = \frac{mass}{volume} \\$

From the question

mass of metal = 14 g

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It's density is

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We have the answer as

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<h2>(b).</h2>

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3 years ago

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Answer:

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Explanation:

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