8.- An aqueous solution is prepared dissolving 10.000 g of compound Z (MW-200.0) in 200.0 mL...
A solution is prepared by dissolving 200.0 g of iron (III) chloride (162.2 g/mol) in 200.0 mL of water. What is the molarity of the solution?
Question 2 0/1 pts A solution was prepared by dissolving 8.03 g of (NH4)2SO4 (MW = 132.14 g/mol; specific volume = .565 ml/g) in 35.0 ml of water. The final volume of the solution is __ml. Question 3 0/2 pts A solution was prepared by dissolving 8.03 g of (NH4)2SO4 (MW = 132.14 g/mol; specific volume = .565 ml/g) in 35.0 ml of water. The concentration of (NH4)2SO4 in the solution is ___%(w/v).
1. An aqueous solution of potassium thiosulfate is prepared by dissolving 3.70 g of potassium thiosulfate in 7.11×102 g of water. The density of the solution is 1.37 g mL-1. a) Determine the mass percent of potassium thiosulfate in the solution. b) Determine the mole fraction of potassium thiosulfate in the solution. 2. An aqueous solution of potassium bromide is prepared by dissolving 8.75 g of potassium bromide in 8.29×102 g of water. The density of the solution is 1.20...
QUESTION 8 What is the mass percent of a solution prepared by dissolving 18.9 grams of solid into 39.5 grams of water? OA) 47.8% O B) 58.4% C) 32.4% OD) The identity of the compound must be known. E) none of the above QUESTION 9 1 points What is the molarity of a solution prepared by dissolving 54.3 g of Ca(NO3)2 into 355 ml of water? A) 0.331 M B) 0.932 M C) 0.117 M D) 1.99 M E) none...
Calculate the molality of a dextrose (mw = 180.16 g/mole) solution prepared by dissolving 52.8 g dextrose in 500 mL of water (density of the solution is 1.06).
An aqueous solution of glycerol, C3H8O3 is prepared by adding 150.0 g of glycerol to 200.0 g of water. What is the mole fraction of glycerol in the final solution? a. 0.571 b. 0.429 c. 0.750 d. 0.872 e. 0.128 NB: the answer is e but how do I do the working out?
What is the molarity (moles per Liter) of an aqueous solution that is prepared by dissolving 41.5 g of potassium iodide (KI; Molar Mass = 166.0 g/mole) in enough water to make 2,500.0 mL of solution? (5 points]
3. A solution is prepared by dissolving 12.5 g of glucose (CHarO%) in 100.0 g of water. a. What is the concentration of that solution in percent glucose by mass? b. What is the concentration of that solution in mola lity (m)? c. You measured the density of the final solution to be 1.06 g/m L. What is the concentration of the solution in molarity (M)? 4. Calculate the molarity of a 50% sulfuric acid solution by mass. The density...
help needed ! 1 . An aqueous solution is prepared by dissolving 120.6 g of the ionic compound, Libr, in i 010.0 g of water. Calculate the freezing point of this LiBr aqueous solution?
A 115.3 g sodium chloride solution(density =1.05 g/mL) was prepared by dissolving 15.3 g of NaCl in 100.0 mL of water (density = 1.00 g/mL.) calculate the % of M/M, % M/V, and molarity of this in NaCl solution