The number of carbon atoms present in a signature, if a signature written by carbon pencil weighs 1.2×10−3 g is:
The number of carbon atoms present in a signature, if a signature written by carbon pencil weights 1.2×10−3 g is:
What do you understand by Mole? . If, 8.4 g X element includes 9.03×1022 atoms and 0.1mol X2Y3 compound is 16g find atomic mass of Y element. (Avogadro number is 6.02×1023) [5 MARKS]