We will get the molality from this formula: Molality = no.of moles of solute / Kg of solvent
So first we need the no.of moles of KNO3 = the mass of KNO3 / molar mass of KNO3 no.of moles of KNO3 = 175 / 101.01 = 1.73 mol By substitution in the molality formula: ∴ molality = 1.73 / (750/1000) = 2.3 Molal
Answer; If a chemical has a pH of 3, how could you change its pH value to be more basic? Adding water to a chemical will dilute the acid, thus lowering the pH value to more basic.