4. The calcium content from an unknown sample weighing 1.23 g was determined by gravimetric determination. During the an
Posted: Thu Feb 17, 2022 11:12 am
4. The calcium content from an unknown sample weighing 1.23 g was determined by gravimetric determination. During the analysis, 0.44 g of CaC204.H20 precipitates was obtained. What is the percentage of calcium by weight in the sample? (5 marks)