An organic compound is estimated through Duma's method and was found to evolve 6 moles of CO₂. 4 moles of H₂O and 1 mole of nitrogen gas. The formula of the compound is :

The amount of sugar (C₁₂H₂₂O₁₁) required to prepare 2L of its 0.1 M aqueous solution is :

For the following reaction, in the mass of water produced from 445 g of C₅₇H₁₁₀O₆ is :

2C₅₇H₁₁₀O₆(s) + 163 O₂(g) $$ \to $$ 114 CO₂(g) + 110 H₂O(l)

A solution of sodium sulphate contains 92 g of Na⁺ ions per kilogram of water. The molality of Na⁺ ions in that solution in mol kg^$$-$$1 is :