The molarity fo 250 mI of `Na_2CO_3` solution is 0.5M. Find the mass of `Na_3CO_3`.

To 100 ml CaCl_(2) solution containing 6.66g CaCl_(2) , 100 ml of 0.5M Na_(3)PO_(4) solution is added. The mass of Ca_(3)(PO_(4))_(2) precipitated would be ?

The molarity of a solution obtained by mixing 750mL of 0.5 M HCl with 250 mL of 2M HCl will be

The molarity, of a solution of 'Na_2 CO_3' having '10: 6 g / 500mL' of solution is

Calculate the molar mass of CO_2 .

How are 0.50 mol Na_2CO_3 and 0.50 M of Na_2CO_3 different.

250 ml of a sodium carbonate solution contains 2.65 grams of Na_(2)CO_(3) . If 10 ml of this solution is diluted to one litre,what is the concentration of the resultant solution? (mol.wt. of Na_(2)CO_(3)=106 )

The vapour pressure of water at T(K) is 20 mm Hg. The following solutions are prepared at T(K): I. 6g of urea (mol.wt.=60) is dissolved in 178.2 g of water. II. 0.01 mole of glucose is dissolved in 179.82 g of water. III. 5.3 g of Na_2CO_3 (mol.wt. =106) is dissloved in 179.1 g of water. Identify the correct order in which the vapour pressures of solutions increase: