Calculate the number of atoms in 60 g of neon [Ne = 20]
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Calculate the gram molecules in 21 g of nitrogen [N = 14]
Calculate the number of atoms in 10 litres of ammonia [N = 14, H = 1]
Calculate the number of moles of 'X' atoms in 93 g of 'X' [X is phosphorus = 31]
Calculate the volume occupied by 3.5 g of O2 gas at 27 °C and 740 mm pressure. [O = 16]