Potassium permanganate solutions may be standardized by titrating against primary standard sodium oxalate. 2mno4- + 5c2o42- + 16h+  2mn2+ + 10co2 + 8h2o what is the molarity of the kmno4 (fm 158.04) solution if 43.80 ml of the kmno4 is required to titrate 0.2168 grams of na2c2o4 (fm 134.00)?

(a) 0.01478 m kmno4

(b) 0.03694 m kmno4

(c) 0.09235 m kmno4

(d) 0.07388 m kmno4

The molality of calcium chloride (cacl2) in an aqueous solution is 2.46 m. what is mole fraction of the solute?

Water is initially present in a state where its molecules are far apart. during a change of state, its molecules slow down. which change of state has most likely taken place? from a gas to a liquid from a liquid to a gas from a solid to a liquid from a gas to a plasma

You just calculated that the heat of fusion for chloromethane is 6400 j/mol. the heat of fusion for hydrogen is 120 j/mol.? which of the following account for this difference? more than one correcta. chloromethane can absorb more energy at the same temperature. b. hydrogen has stronger intermolecular forces than chloromethane. c. hydrogen molecules can pack more closely than chloromethane molecules. d. chloromethane experiences dipole-dipole interactions. e. chloromethane has a higher molar mass than hydrogen.