How many molecules are present in 9g of water-6-022- -3-011- -6-022- -3-011- -

The correct option is D 3.011 Molecular Mass of water = 18g ∴ 18g = 6.022 × 10^23 molecules of H_2 O 9g=6.022/2×10^23 molecules of H_2O =3.011×10^23 molecul ...

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Standard IX

Chemistry

Molecules and Atomicity

How many mole...

Question

How many molecules are present in 9g of water?

6.022

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3.011

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6.022

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Solution

The correct option is B
3.011

Molecular Mass of water = 18g
$∴$ 18g = 6.022 $\times 10^{23}$ molecules of $H_{2} O$

$9 g = \frac{6.022}{2} \times 10^{23} m o l e c u l e s o f H_{2} O = 3.011 \times 10^{23} m o l e c u l e s o f H_{2} O$

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How many molecules are present in 9g of water?

The correct option is B 3.011 Molecular Mass of water = 18g ∴ 18g = 6.022 ×1023 molecules of H2O 9g=6.0222×1023 molecules of H2O=3.011×1023 molecules of H2O

The correct option is B
3.011

Molecular Mass of water = 18g
$∴$ 18g = 6.022 $\times 10^{23}$ molecules of $H_{2} O$

$9 g = \frac{6.022}{2} \times 10^{23} m o l e c u l e s o f H_{2} O = 3.011 \times 10^{23} m o l e c u l e s o f H_{2} O$