The number of carbon atoms present in a signature, if a signature written by carbon pencil weights 1.2 × 10

Engineering

Chemistry

Mole and Its Calculation

Question

The number of carbon atoms present in a signature, if a signature written by carbon pencil weights 1.2 × 10^–3 g is

3.01 × 10¹⁹

6.02 × 10²⁰

12.04 × 10²⁰

6.02 × 10¹⁹

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w_C = 1.2 × 10^–3
C-atom = n_C × N_A = 1.2 × 10^–3 × × 6.02 × 10²³
= 6.02 × 10¹⁹