The equation shows that 1 mol of HCl reacts with 1 mol of NaOH. So the amount of NaOH in 20.0 cm 3 is 0.025 mol. Substituting into the equation to find the concentration of NaOH: \(Concentration ...

Swirl to speed up reaction. Make sure all the Mg is emptied out of the balloon. Each flask contains 0.1 mol of HCl. Magnesium is present in the following amounts: Flask 1 0.0125 mol Mg 0.1 mol HCl ...