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How many grams of H₂O2 are there in 1.4 X 10^12 molecules of H₂O₂ ?​

1 Answer

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Answer:

41.8 g of water.

Step-by-step explanation:

To solve this, we introduce the concept of mol.

1 mol of anything contains 6.02×10²³ particles.

In this case, we talk about molecules of water.

Molecular weight is 18 g/mol which indicates that 1 mol of water weighs 18 g.

So, let's do the conversion.

(18 g of water / 6.02×10²³ 1 mol of molecules) . 1.4×10²⁴ molecules = 41.8 g

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