Question

hey friends plzzzz help!!!
if carbon weighs 1microgram(10^-6) dunno. of carbon atoms.... !!​

Answer 1

12 gram =Na atoms(6.023x10^23)

$1 \: gram = 6.023 \times 10 {}^{23} \div 12$

$10 {}^{ - 6 } \: gram \: = 6.023 \times 10 {}^{2 3} \times 10 {}^{ - 6} \div 12$

Therefore no. of carbon atoms in 1 microgram is 0.501x10^17 atoms