Ana and Eric are in a team to do the lab separation of solids. They weighed a sample of 3.58g. The weight loss is 1.20g after elimination. After dissolving the leftover solids in water and decant, they recovered 0.97g of sand. Evaporating water from solution, 1.46g of salt were recovered. Calculate the mass percentage of three compounds in the mixture. What is the error (absolute) in term of mass percentage in their experiment