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QUESTION
A 15.0 mL sample of NaCl solution has a mass of 15.78% g. After the NaCl solution is evaporated to dryness, the dry salt residue has a mass of 3.
Hello, I need help with the following chem question. A 15.0 mL sample of NaCl solution has a mass of 15.78% g. After the NaCl solution is evaporated to dryness, the dry salt residue has a mass of 3.26 g. Calculate the following concentrations for the NaCl solution.
1. % (m/m)
2. % (m/v)
3. molarity (M)
