If the density of ocean water at a depth of 1.00 x 104 m is 1.071 g/mL and if 25.0 g of water at that depth contains 182mg of potassium chloride, what is the molarity of potassium chloride in the sample?
Molarity = (mass/molarmass)*(1000/V in mL)
density = mass/volume
volume of water = mass/density
= 25.0/1.071
= 23.34 mL
mass of KCl = 182 mg = 0.182 g, molar mass of KCl =74.55 g/mol
Molarity = (0.182/74.55)*(1000/23.34)
= 0.1046 M
If the density of ocean water at a depth of 1.00 x 104 m is 1.071...