How many moles of water, H₂O, are present in 75.0 g of H₂O?

Name: How many moles of water, H₂O, are present in 75.0 g of H₂O?
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Question

Quizplus · Accepted Answer

To calculate the number of moles of H₂O present in 75.0 g, we need to use the formula:

moles = mass / molar mass

The molar mass of H₂O is 18.02 g/mol (2 x 1.01 g/mol for hydrogen + 1 x 16.00 g/mol for oxygen).

Thus, moles = 75.0 g / 18.02 g/mol = 4.16 moles.

Answer B is the closest choice to 4.16.

How Many Moles of Water, H₂O, Are Present in 75