The mass of an atom of C is1-g-1-99 - 10-23g-1-12-1-99 - 10-20g-

The correct option is B 1.99 × 10^ 23g 1 mole of carbon = 6.022 × 10^23 C atoms 6.022 × 10^23 C atoms = 12 g (gram atomic mass of carbon) 1 C atom = 12/6.022 × ...

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Standard X

Chemistry

Atomic Mass

The mass of a...

Question

The mass of an atom of C is

$1 g$

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$1.99 \times 10^{- 23} g$

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$\frac{1}{12}$

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$1.99 \times 10^{- 20} g$

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Solution

The correct option is B
$1.99 \times 10^{- 23} g$

1 mole of carbon = $6.022 \times 10^{23}$ C atoms

$6.022 \times 10^{23}$ C atoms = 12 g (gram atomic mass of carbon)

1 C atom = $\frac{12}{6.022 \times 10^{23}} = 1.99 \times 10^{- 23} g$

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The mass of an atom of C is

The correct option is B 1.99×10−23g 1 mole of carbon = 6.022×1023 C atoms 6.022×1023 C atoms = 12 g (gram atomic mass of carbon) 1 C atom = 126.022×1023=1.99×10−23g

The correct option is B
$1.99 \times 10^{- 23} g$

1 mole of carbon = $6.022 \times 10^{23}$ C atoms

$6.022 \times 10^{23}$ C atoms = 12 g (gram atomic mass of carbon)

1 C atom = $\frac{12}{6.022 \times 10^{23}} = 1.99 \times 10^{- 23} g$