The weight of 10^{22} atoms of carbon. [ {\C}=12., Avogadro's No. =6 \times 10^{23}]

ICSE Class 10 Chemistry 2019 Solved Paper - Question 22

Calculate :

Question : 22 of 86

Marks: +1, -0

The weight of

10^{22}

atoms of carbon.

[ {\C}=12.

, Avogadro's No.

=6 × 10^{23}]

Solution:

6 × 10^{23}

atoms have a weight

=12 {\gm}

then

10^{22}

atoms have a weight

\;=\;{12 × 10^{22}}/{6 × 10^{23}}

\;=\;{12}/{6 × 10}=\;{12}/{60}=0.20 {\gm}

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