Question 239388

A is a solution containing 0.0905 moldm3 of NHO3 B was prepared by diluting 50.0cm3 of a saturation of Ma2Co2 at room temperature to 1000 cm-3 25cm3 portion of B was found to required and average 24.90cm3 of A for complete neutralization using methl orange as the indicator, the data above. Determine
1. Amount of HNO3 in average volume of A used
2. Concentration of B in moldm3
3. Solubility of Na2Co3 in moldm3
4. Molar mass of Na2Co3 that will obtain evaporating 1dm3 of the solution to dryness by evaporating 2HNO3+NaCo _ 2NaNo3