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What is the molality of a solution in which 0.400 moles of sucrose are dissolved in...
SOLUTIONS (Molarity, Molality) SECTION 9) What is the molarity [MJof a solution that is made by dissolving 2.00 moles of solute in 300. mL of solution? 10) What is the molarity of the solution when 0.400 moles of copper sulfate dissolves in 0.200 liters of solution? 11) What is the molarity of solution when 16.88g of sodium chloride is dissolved in water to a total volume of 1000.00 ml? What is the mass percent of 10.0 grams Mg (NO3)2 dissolved...
5. Molality, m =- The molality of NaBr solution is 1.25 m 1.25 mole of NaBr I 1.0 kg of the solvent Question 17. Calculate the number of g solvent that contains 12 g NaBr of 1.25 m solution of NaBr. [8.14E2 g solvent] Question 18. Calculate the molality of a solution containing 17.2 g of ethylene glycol (CzH02 ) dissolved in 0.500 kg water. [5.54E-1 m) Question 19. What is the formula of sucrose? Calculate the molality of a...
A) Calculate the molality of a sucrose solution made by dissolving 73.1 grams sucrose into 55.3 grams water. The molar mass of sucrose is 342.2 g/mol. Record your answer in scientific notation using 3 significant figures. Use * for the multiplication symbol. B) A sodium hydroxide solution that contains 55.5 grams of NaOH per L of solution has a density of 1.14 g/mL. Calculate the molality of the NaOH in this solution. Record your answer to 2 decimal spaces. C)...
Question 5 When 0.0194 moles of KNO3 are dissolved in 0.01802 kg of water, what is the molality of the ions in solution? O 0.0194 m 2.15 m 0 0.0388 m 0 0.194 m 01.10 m
145.0 moles of CaCO3 is dissolved in 5.0 L of water, what is the concentration of CaCo3? 20C940.6C12.8016 ASM OB 2.5M OC 1.5M 0,0.5M OE 1M QUESTION 29 A solution was made by dissolving 53.0 g of Na2CO3 in 500.0 mL of water. What is the molarity of this solution? (molarity - moles of solute/liters of solution) 1Na23, 6C12.8016 CA50M OR 2.0M OC 1.5M 0.0.5M OL 1.0M QUESTION 30 If 0.250 mol of NaOH is dissolved in 125.0 mL of...
A 4.00 g sugar cube (sucrose: C12H22O11) is dissolved in a 350 mL teapot containing 80∘ C water (density of water at 80∘ C= 0.975 g/mL). What is the molality of the sugar solution? Express the molality with the appropriate units.
1) Calculate the molality of the solution formed when of 50.0 g of the nonelectrolyte glucose (Molar mass 180.2) is dissolved in 0.250 kg of water. A) 0.925 molal B) 0.400 molal C) 0.167 molal D) 0.200 molal E) 1.11 molal CH11
For the following system, 0.400 moles of I_2, . 0.400 moles of Br_2 and 2.10 moles of IBr are placed in a 2.00- L flask. The value of K_c for the reaction is 110.25. What are the concentrations (M) of Br_2 and IBr (in this order) when equilibrium is reached? I_2(g) + Nr_2(g) 2 IBr(g) a) 0.116, 1.22 b) 0.109, 1.14 c) 0.100, 1.05 d) 0.013, 1.42 e)none of these
Calculate the molality of each of the following solutions: (a) 15.5 g of sucrose (C12H22O11) in 745 g of water, __ m (b) 9.29 moles of ethylene glycol (C2H6O2) in 4985 g of water. __ m Be sure to answer all parts. Calculate the molality of each of the following solutions: (a) 15.5 g of sucrose (C12H2201n) in 745 g of water, (b) 9.29 moles of ethylene glycol (C2H6O2) in 4985 g of water.
Determine the molality of a solution made by dissolving 0.239 moles of glucose in 546 mL of water. Assume the density of water is 1.00 g/mL. m glucose