How many moles of lead (II) chloride will be formed from a reaction between 6.5 g of PbO and 3.2 g of HCl? (CBSE AIPMT 2008)

Given, Weight of lead oxide (PbO) = 6.5 g Moles of lead oxide = 6.5 0.029121864 223.2 moles Weight of hydrochloric acid (HCl) = 3.2 g Moles of hydrochloric acid = 3.2 0.087767416 36.46 moles The balanced chemical reaction is 2 2 PbO 2HCl PbCl H O → As per the balanced equation, one mole of lead oxide reacts with two moles of hydrochloric acid to form one mole of lead (II) chloride and water. Then, 0.088 moles of hydrochloric acid requires 0.044 moles of lead oxide but it has only 0.029 moles. Hence, lead oxide is the limiting reagent. Number of moles Number of moles of lead o