- Calculate the concentration in ppm of K present in a solution prepared by dissolving 2.0 g of pure KNO3 and diluting to a volume of 1L
MW(KNO3) = 101.11 g/mol, MW (K) = 39.1 g/mol Using ppm in a calculation Calculate the concentration of Na+in ppm, resent in a solution prepared by ; dissolving 1.002 g of pure NaBr and diluting to a volume of one liter. calculate the molarity of Na+as well. NaBr = 23.0 g/mol + 79.9 g/mol = 102.9 g/mol
- Calculate the mass of KCl required to make 1 L of a 1000 ppm K + stock solution. K = 39.1g/mol, KCl= 74.6g/mol
- Calculate the mass of CaCl2 needed to prepare 1000mL of a solution that is 100 ppb in "Ca".