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Helen [10]
3 years ago
10

Calculate the mass of 3 moles of water: H2O​

Chemistry
1 answer:
kkurt [141]3 years ago
4 0

Answer:

The answer is 54g of mass

Explanation:

Using the formula

n = m/Mm

n - mole

m - mass

Mm - molar mass

Since we are given the mole of water to be 3

Let's calculate the molar mass of H2O

H is 1

O is 16

Mm = 1* 2+ 16

= 2 + 16

= 18g/mol

Using the formula above,

n = m /Mm

n = 3

m = we are looking for

Mm = 18g/mol

3 = m / 18

so, m = 18*3

= 54g

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Answer:

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Explanation:

Firstly, you will divide 25 by 12.01 and get 2.081598  

We know 1 mole equals the gram per atomic mass,  so one mole of carbon is 12.01 grams. In conclusion, it would look like 25/12.01.

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3 0
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Answer:

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Thus option B is correct answer.

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