Question

Question 11 of 15 > When calcium carbonate is added to hydrochloric acid, calcium chloride, carbon dioxide, and water are produced. CaCO,(8) + 2HCl(aq) +CaCl, (aq) + H,0(1) + CO2(E) How many grams of calcium chloride will be produced when 26.0 g of calcium carbonate is combined with 13,0 g of hydrochloric acid? mass of CaCl, Which reactant is in excess? Caco OHC How many grams of the excess reactant will remain after the reaction is complete? mass of excess reactant

Answer 1

loosimo 26 3m Caco 3 + 13 з не? molar mass of ca coz= a moles of cacoz = 26 - o-grmoles molar mass of hl= 36.5 g/mol a moles of HcI 13 = 0.36 moles Cacoz t ahal cacla + H2O + CO2 0-26 mol 0-36 mol 2 mol Hel heed 1 mol cacog so 0.36 mol Hal I will need txo-36 = 0.18 mal cacoa but we have more cacoz than that so cacoz is excess seagent and he is limittity reactand. i mol cacla fa mol tl gives so 0-36 mol Hel will give txo.36= 0.18 md cache molan mass of Caciz = 1119 Imel a mass of cacle formed = 0.18X1N - 19.8 gm a. (cacoz is erecess reactant.) only 0.18 mol caloz is reacting so . cacoz left = 0-26-0018 = 0ood mol molar mass of Calog = 100 almal cs Scarro assief cacos (esecers reacant) left = 0-08 x love S = 8gma Car Scanner