You analyzed 2.475 g of a mixture of NaCl, SiO₂, and CaCO. You isolate 0.825 g NaCl, 0.825 g of CaCO3, and 0.580 g SiO₂. You

Question

You analyzed 2.475 g of a mixture of NaCl, SiO₂, and CaCO. You isolate 0.825 g NaCl, 0.825 g of CaCO3, and 0.580 g SiO₂. You were told that the original mixture contained 35% NaCl, 45% CaCO3, and 20% SiO₂. Report two possible sources of error.

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