Question

calculate the mass of 3.011 ×1024 molecules of water
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Answer 1

Explanation:

Mass of one mole molecule of water=(2×1)+16=18g

Since one mole molecule contain 6.022×10²³molecule

Mass of 6.022×10²³molecules of water=18g

Mass of 3.011×10²⁴ molecules of water =

$18 \times \frac{3.011 \times {10}^{24} }{6.022 \times {10}^{23} }$

Mass of 3.011×10²⁴molecules of water=90g