A seawater sample contains 2.7mg chl m3. What is the chlorophyll II concentration in units of uM L?
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A water sample contains 20 ng/L. What is the concentration in kg/m3?
The specific gravity of seawater is 1.025, not the usual 1.00 for water, and is 3.5% salt (mostly NaCl) by mass. This increased density is due primarily to the dissolved NaCl in the seawater. Give the density (kg/m3) of the seawater, and then the molarity, molality, ppm (per mass), mole fraction, and TDS of the NaCl in the water, as if it were the only dissolved component. We did not discuss TDS in class, because I want you to find its meaning through a quick search. answers: r = 1025 kg/m3, conc = 0.614 M, 0.621 m, 35,000 ppm, x = 0.0110, TDS 35,900 mg/L.
8. a. What is the molarity of a solution of calcium chloride which contains 33500 mg of solute in a total volume of 0.352L? b. What is the molarity of a solution of LiI which contains 26800 mg of solute in a total volume of 0.282L? c. What is the molarity of a solution of calcium chl