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1.Percent by mass to parts per million. Convert 4.45% NaOH(aq) solution to parts per million NaOH...

1.Percent by mass to parts per million. Convert 4.45% NaOH(aq) solution to parts per million NaOH in the solution. Do NOT assume a dilute aqueous solution! Use the molar mass of the entire salt formula, not either ion alone. The solution density is 1.047 g/mL. Answer to 3 significant figures with appropriate units.

2. Molarity to parts per million. Convert 1.672 mol/L MgCl2(aq) solution to parts per million Mg2+ in the solution. Do NOT assume this is a dilute aqueous solution! Use the atomic mass of magnesium for the Mg2+. The solution density at this concentration is 1.137 g/mL. Answer to 4 significant figures with appropriate units.

3. Molarity to percent by mass. Convert 1.672 mol/L MgCl2(aq) solution to percent by mass of MgCl2 in the solution. The solution density at this concentration is 1.137 g/mL. Answer to 4 significant figures with appropriate units.

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