We get 300 grams of water. Now we need kilograms. To find kilograms, we simply take this, divide it by 1000, we get 0.3 kg. Now, to find Molarity, we simply take our moles of solute, divide that by kilograms of solvent, and we get zero point 24 three molar. So that's our Molarity. And finally we use our PH formula which basically states PH equals negative log ten of 0.243.