Seawater contains 411 ppm calcium (Ca2+). What is the molar concentration (i.e., molarity) of calcium in...
Seawater contains 411 ppm calcium (Ca2+). What is the molar concentration (i.e., molarity) of calcium in seawater?
Homework Answers
Ans :
ppm stands for parts per million
So 411 ppm calcium = 411 g / 1000 L
Number of moles of calcium = mass / molar mass
= 411 / 40.078 = 10.25 mol
Molarity = mol / volume
= 10.25 / 1000
= 0.0102 M
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