Question

how many moles of water are contained in 1.99x10^26 molecules of water?

Answer 1

Answer:

330 moles

Explanation:

I mole of water = 6.022 × 10²³ molecules

I molecule = 1 ➗ 6.022 × 10²³ moles

1.99×10‘’ 26 molecules  = (1.99×10‘’ 26) ÷6.022 × 10²³ moles

Number of moles = 1.99/6.022 × 10" 26-23

Number of moles = 0.33 × 10³

Number of moles = 330 moles

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Answer 2

The number of mole should be 330 moles

Calculation of number of moles:

We know that

I mole of water = 6.022 × 10²³ molecules

So,

I molecule = 1 ÷ 6.022 × 10²³ moles

Now

For 1.99×10526 molecules  = (1.99×10^ 26) ÷6.022 × 10²³ moles

So,

Number of moles = 1.99 ÷ 6.022 × 10^26-23

Number of moles = 0.33 × 10³

Number of moles = 330 moles

Learn more about the water here: https://brainly.com/question/15276837