1 gram atom of Ca was burnt in excess of air, dissolved in water, and made up to 1 lit, its N is--'

1 gram atom of Ca was burnt in excess of air, dissolved in water, and made up to 1 lit, its N is--'
1 gram atom of Ca was burnt in excess of air, dissolved in water, and made up to 1 lit, its N is--'
1 gram atom of Ca was burnt in excess of air, dissolved in water, and made up to 1 lit, its N is--'

is--'