31:25Molarity, Molality, Volume & Mass Percent, Mole Fraction & Density - Solution Concentration ProblemsThe Organic Chemistry Tutor1209views1rank
08:02Molarity vs. molality | Lab values and concentrations | Health & Medicine | Khan Academykhanacademymedicine710views
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?1231views8rank
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?1631views6rank4comments
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.827views7rank3comments
Multiple ChoiceWhat is the molarity of a solution prepared by dissolving 5.00 g of NaCl in 500.0 mL of water?412views
Open QuestionWhat mass (in g) of nh3 must be dissolved in 475 g of methanol to make a 0.250 m solution?343views
Open QuestionWhat is the molar concentration of Na+ ions in 0.0250 m solutions of the following sodium salts in water?275views
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.307views
Open QuestionIf we dissolve 36 grams of salt in 148 grams of water, what is the mass of the resulting solution?230views
Open QuestionDescribe how to prepare each solution from the dry solute and the solvent. a. 1.00×102 mL of 0.500 M KCl b. 1.00×102 g of 0.500 m KCl c. 1.00×102 g of 5.0% KCl solution by mass
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