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If we assume that the density of the solution is almost equal to that of pure water (1 kg/L), then we find that 1 L of solution will weigh 1 kg. If 1 kg of solution contains 0.0001 M of sucrose , then it is 0.0001 m in sucrose, so the molarity and molality are almost the same. I think they are numerically the same to several decimal places.
Rating Newest Oldest. Best Answer: Molarity is defined as moles per liter. To find the number of moles of HCl, you need its density at the desired temperature, and then multiply it by the number of mL (10). That will give you the number of grams present in your 10mL sample. Then, divide that number by the molar mass of HCl (36.46 g/mol).