Calculate the number of `NA^(+)` ion present in 142 amu of `Na_(2)SO_(4)` in aqueous solution.

Calculate the number of Na^(+) ion present in 710 mg of Na_(2)SO_(4) in aqueous solution (N_(A)=6xx10^(23)) If your answer is x xx 10^(y) (in scientific notation) then fill x in OMR, where x is single digit number

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

Find number of Na^(+) & PO_(4)^(-3) ions in 250mol of 0.2M Na_(3)PO_(4) solution .

Find the wt of water present in 1.61 g of Na_(2)SO_(4).10H_(2)O

Calculate number of gm ions present in an aqueous solution containing 369 gm of K_(2)SO_(4).(NH_(4))_(2)SO_(4). 24H_(2)O if the salt undergoes complete dissocation into ions and water does not dissociate.

Standardization of Acid Solution: Calculate the normality of a solution of H_(2)SO_(4) if 40.0 mL of the solution reacts completely with 0.364 gram of Na_(2)CO_(3) . Strategy: Refer to the balanced equation. We are given the mass of Na_(2)CO_(3) , so we convert grams of Na_(2)SO_(3) to equivalents of Na_(2)CO_(3) , then to equivalents of H_(2)SO_(4) , which let us calculate the normality of the H_(2)SO_(4) solution.