The concentration of a 100 ml solution containing X grams of `Na_(2)CO_(3)` (mol. wt. = 106) is Y M. The values of X and Y are respectively :

The molarity of the solution containing 7.1g of Na_(2)SO_(4) in 100mL of aqueous solution is

If the molecular weight of a compound Na_(X) SO_(Y) is 142, then the values of X and Y are, respectively, _______ and ______

An aqueous solution contain 0.53 g of anhydrous Na_(2)CO_(3) (Mol.wt. 106) dissolved in 100ml of solution. The molarity of the solution is

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_(a) CO_(3)=106 )

250 ml of a solution contains 6.3 grams of oxalic acid (mol.wt. = 126). What is the volume (inlitres) owater to be added to this solution to make it a 0.1 N solution ?

5 mL of 8 N HNO_(3), 4.8 mL of 5N HCl and a certain volume of 17 M H_(2)SO_(4) are mixed together and made upto 2 "litre" . 30 mL of this acid mixture exactly neutralizes 42.9 mL of Na_(2)CO_(3) solution containing 1 g Na_(2)CO_(3) . 10 H_(2)O "in" 100 mL of water. Calculate the amount of sulphate ions in g present in solution.

5 litre of a solution contains 25 mg of CaCO_(3) . What is its concentration in ppm? (mol.wt of CaCO_(3) is 100)

What is the weight ( in g) of Na_(2) CO_(3) molar mass = 106 ) present in 250 mL of Its 0.2 M solution ?