31:25Molarity, Molality, Volume & Mass Percent, Mole Fraction & Density - Solution Concentration ProblemsThe Organic Chemistry Tutor994views1rank
08:02Molarity vs. molality | Lab values and concentrations | Health & Medicine | Khan Academykhanacademymedicine630views
Multiple ChoiceA solution is prepared by dissolving 43.0 g potassium chlorate, KClO3, in enough water to make 100.0 mL of solution. If the density of the solution is 1.760 g/mL, what is the molality of KClO3 in the solution?1142views7rank
Multiple ChoiceThe density of a 15.7 M methanol (CH3OH) solution is 0.858 g/mL. If H2O is the solvent, what is the molality of the solution?1520views6rank4comments
Multiple ChoiceWhat is the ionic molality of sodium ions in a solution of 25.7 g NaNO3 dissolved in enough water to make a 150.0 mL of solution? Density of the solution is 1.02 g/mL.758views6rank3comments
Multiple ChoiceWhat is the molarity of a solution prepared by dissolving 5.00 g of NaCl in 500.0 mL of water?342views
Open QuestionWhat mass (in g) of nh3 must be dissolved in 475 g of methanol to make a 0.250 m solution?228views
Open QuestionWhat is the molar concentration of Na+ ions in 0.0250 m solutions of the following sodium salts in water?221views
Open QuestionCommercial grade HCl solutions are typically 39.0% (by mass) HCl in water. Determine the molality of the HCl, if the solution has a density of 1.20 g/mL.244views
Open QuestionIf we dissolve 36 grams of salt in 148 grams of water, what is the mass of the resulting solution?183views
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