Concept explainers
What masses of sodium chloride, magnesium chloride, sodium sulfate, calcium chloride, potassium chloride, and sodium bicarbonate are needed to produce 1 L of artificial seawater for an aquarium? The required ionic concentrations are
Interpretation:
The masses of different salts required to prepare artificial sea water are to be calculated.
Concept introduction:
Molarity is calculated as thenumber of moles of solute dissolved in one litre of solution.
Mass of an element is calculated as follows:
Answer to Problem 142AP
Solution: Mass of
Explanation of Solution
The tabulated concentration of all the ions is as follows:
The concentration of chloride is from many sources. The overall concentration of chloride ion is calculated as follows:
As the required amount of chloride ion is
So, the difference which must arise from NaCl is
The concentration of sodium is from two sources. The overall concentration of sodium ion is calculated as follows:
As the required amount of sodium ion is
So, the difference thatmust arise from NaCl is
The required mass of compounds is calculated as follows:
Mass of
Mass of
Mass of
Mass of
Mass of
Mass of
Hence, masses of different salts to prepare artificial sea water are:
Mass of
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Chapter 13 Solutions
Chemistry
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