In three moles of ethane (C2H6), calculate the Number of moles of hydrogen atoms.
1 mole of C2H6 contains 6 moles of hydrogen atoms.
∴Number of moles of carbon atoms in 3 moles of C2H6
= 3 × 6 = 18
Calculate the concentration of nitric acid in moles per litre in a sample which has a density, 1.41 g mL–1and the mass per cent of nitric acid in it being 69%.
Calculate the mass of sodium acetate (CH3COONa) required to make 500 mL of 0.375 molar aqueous solution. Molar mass of sodium acetate is 82.0245 g mol–1
- null - Mole Concept and Molar Masses