`0.1g` of a solution containing `Na_2 CO_3 and NaHCO_3` requires `10mL` of `0.01 N HCI` for neutralization using phenolphthalein as an indicator. mass % of `Na_2 CO_3` in solution is :

What is the molarity of 0.2N Na_2CO_3 solution ?

Common name of Na_2 CO_3 . 10H_2O

A 3.4g sample of H_(2)O_(2) solution containing x%H_(2)O by mass requires xmL of a KMnO_(4) solution for complete oxidation under acidic conditions. The normality of KMnO_(4) solution is :

20mL of 0.1M solution of compound Na_2CO_3 . 2H_2O is titrated against 0.05 M HCI . x mL of HCI is used when phenolphthalein is used as an indicator and y mL of HCI is used when methly orange is the indicator in two separate titrations. Hence (y-x) is :

Calculate the formula mass of: Na_2 CO_3 * 10H_2O

1g mixture of equal number of mole of Li_2 Co_3 and other metal carbonate (M_2 CO_3) required 21.6 mL of 0.5 NHCI for complete neutralisation reaction. What is the approximate atomic mass of the other metal ?

A mixture of H_(2)SO_(4) and H_(2)C_(2)O_(4) (oxalic acid ) and some inert impurity weighing 3.185 g was dessolved in water and the solution made up to 1litre. 10 mL of this solution required 3 mL of 0.1 N NaOH for complete neutralization. In another experiment 100 mL of the same solution in hot condition required 4 mL of 0.02 M KMnO_(4) solution for complete reaction. The mass % of H_(2)SO_(4) in the mixture was:

Calculate the formmula unit mass of ZnO, Na_2O,K_2CO_3 .

6.2g of a sample containing Na_2CO_3, NaHCO_3 and non-volatile inert impurity on gentle heating loses 5% of its mass due to reaction 2NaHCO_3 rarr Na_2 CO_3 + H_2 O + CO_2 . Residue is dissolved in water and formed 100mL solution and its 10mL portion requires 7.5 mL of 0.2M aqueous solution of BaCI_2 for complete precipitation of carbonates. Determine mass (in gram) of Na_2 CO_3 in the original sample.