Define molarity . What does 1 M solution of sodium carbonate mean ?

Will the solution of sodium carbonate acidic or basic?

Define molarity of a solution.

What will be the colour of litmus in a solution of sodium carbonate?

Explain why an aqueous solution of sodium sulphate is neutral while an aqueous solution of sodium carbonate is basic in nature.

What happens when solutions of sodium hydrogen carbonate is heated?

What will happen if a solution of sodium hydrogencarbonate is heated? Give the equation of the reaction involved

25.3 g of sodium carbonate Na_2CO_3 is dissolved in enough water to make 250 ml of solution. If sodium carbonate dissociated completely, molar concentration of sodium ion, Na^+ and carbonate ions , CO_3^(2-) are respectively (Molar mass of Na_2CO_3=106gmol^-1) .