Mass of 1 atom of Hydrogen is -1-66- g-1-67- g-6-022 g-6-022 g-

The correct option is A 1.66 g Molar mass is mass of 1 mole of that substance. ∴6.022×10^23× H atoms = 1g ∴ 1 H atoms = xg By unitary method (cross multipl ...

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Standard X

Chemistry

Mole Concept and Avogadro's Number

Mass of 1 ato...

Question

Mass of 1 atom of Hydrogen is _____

1.66 g

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1.67 g

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6.022 g

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6.022 g

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Solution

The correct option is A
1.66 g

Molar mass is mass of 1 mole of that substance.

$∴ 6.022 \times 10^{23} \times H$ atoms $= 1 g$
$∴ 1 H$ atoms $= x g$
By unitary method (cross multiplication) $\Rightarrow 1 \times 1 = x \times 6.022 \times 10^{23} \Rightarrow x = \frac{1}{6.022 \times 10^{23}} \Rightarrow x = 0.166 \times 10^{- 23} \Rightarrow x = 1.66 \times 10^{- 24} g$

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Similar questions

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Mass of an atom of hydrogen is equivalent to 1/12th the mass of a/an _______ atom.

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Mass of 1 atom of Hydrogen is _____

The correct option is A 1.66 g Molar mass is mass of 1 mole of that substance. ∴6.022×1023× H atoms =1g ∴ 1 H atoms =xg By unitary method (cross multiplication)⇒1×1=x×6.022×1023⇒x=16.022×1023⇒x=0.166×10−23⇒x=1.66×10−24g