a. A sample of 0.972-g a CaCl2.2H2O/K2C2O4.H2O solid salt mixture is dissolved in ~150 mL of demonized water. Calculate the % mass of K2C2O4.H2O in the salt mixture when the solid salt mixture is having the 0.375 g of CaCl2.2H2O, And for CaCl2.2H2O?
b. A peppermint oil of 7.50 mL is peppered into a glass which has a mass of 3.55 g. when the density of peppermint oil is 0.914 g/cm3, so determine the combined mass of the glass and also find out the sample of peppermint oil?