What is the percentage purify if 20.5gm/litre is completely dissolved into N/29 K2Cr2O7
To calculate the percentage purity of a substance dissolved in a solution, you need to know the mass of the pure substance and the mass of the impure substance dissolved in the solution. In this case, the pure substance is K2Cr2O7 and its mass is given as 20.5 grams per liter (g/L) in a solution with a normality (N) of 29.
To find the mass of the K2Cr2O7 in the solution, you need to multiply the volume of the solution by the concentration of the K2Cr2O7. However, the given information does not provide the volume of the solution. Therefore, we cannot calculate the exact mass of K2Cr2O7 in the solution.
Without knowing the volume of the solution, we cannot accurately determine the percentage purity. To find the percentage purity, you typically need the mass of the pure substance and the mass of the impure substance. However, in this case, we do not have the necessary information to calculate it.