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A 1.173 g sample contains only vitamin C (C2H206) and sucralose (C12H1,C1,03). When the sample is...
A 1.180 g sample contains only vitamin C (CHO) and sucralose (C2H,,C1,0). When the sample is dissolved in water to a total volume of 34.3 mL, the osmotic pressure of the solution is 4.11 atm at 305 K. What is the mass percent of vitamin C and sucralose in the sample? vitamin C: % sucralose: %
A 1.326 g sample contains only vitamin C (CHO) and sucralose (C,H,,C1,0). When the sample is dissolved in water to a total volume of 31.1 mL, the osmotic pressure of the solution is 4.77 atm at 295 K. What is the mass percent of vitamin C and sucralose in the sample? vitamin C: sucralose:
omplete A 1.213 g sample contains only vitamin C(CH.0) and sucralose (C,,,,C1,0). When the sample is dissolved in water to a total volume of 25.7 ml, the osmotic pressure of the solution is 5.18 atm at 299 K. What is the mass percent of vitamin C and sucralose in the sample? omplete
Question 26 01 30 A 1.286 g sample contains only vitamin C (CHO) and sucralose (C,H,,C1,0). When the sample is dissolved in water to a total volume of 25.8 mL, the osmotic pressure of the solution is 5.73 atm at 301 K. What is the mass percent of vitamin C and sucralose in the sample? vitamin C: sucralose: %
please solve and explain 30. An aqueous solution of 0.35 MCHECH NHF(BTO) has a pH of A. 2.91 B. 6.82 c. 7.18 D. 11.09 E. 13.54 31. What is the pOH of a solution of a 1.4 x 10-3 M Sr(OH)2 aqueous solution? A. 2.55 B. 2.85 C. 3.15 D. 11.15 E. 11.45 32. A 1.10 g sample contains only glucose (C6H1206) and sucrose (C12H2011). When the sample is dissolved in water to a total solution volume of 25.0 mL,...
3a. Calculate the molar mass (in g/mol) of an unknown 1:1 electrolyte if 0.482 g dissolved in 223.1 mL of water at 74.75 °C has an osmotic pressure of 54.4 mmHg. R = 0.082058 L⋅atm⋅mol−1⋅K−1. 1.00 atm = 760 mmHg. Report your answer to THREE significant figures. 3b. Calculate the required mass of an unknown nonelectrolyte (ℳ = 131.5599 g/mol) dissolved in 140.1 g of solvent that gives a solution that boils at 36.04 °C. The boiling point of the...
A sample of 1.200 g of vitamin C is burned in the presence of excess of oxygen to yield 1.799 g of carbon dioxide and 0.491 g of water. Vitamin C contains only carbon, hydrogen, and oxygen 1) a) Calculate the mass percent composition of vitamin C b) Determine the empirical formula of vitamin C 2) Burning a 0.1500 g sample of a carbon-hydrogen-oxygen g CO2 and 0.1500 g H20. Show all work. compound in oxygen forms a) Calculate the...
Help (0.0034 / 0.035) times 100 Percent ionization = 9.7% A solid mixture contains both MgCl2 and NaCl. When 0.5000 g of this mixture is dissolved in enough water to form 1.000 L of solution, the osmotic pressure at 25.0 Degree C is observed to be 0.3990 atm. What is the mass percent of MgCl2 in the solid? (Assume ideal behavior for the solution and that both ionic compounds dissociate completely in the water.)
plz answer both! Vitamin K is involved in normal blood clotting. When 1.45 g of vitamin K is dissolved in 25.0 g of camphor, the freezing point of the solution is lowered by 4.85 °C. The freezing point and Kt constant for camphor can be found here. Calculate the molar mass of vitamin K. Number g/mol Biphenyl, C12H1o, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H At 25 °C, the vapor pressure of pure benzene is 100.84...
1. When a 4.00 g sample of RbBr is dissolved in water in a calorimeter that has a total heat capacity of 1.26 kJ⋅K−1, the temperature decreases by 0.420 K. Calculate the molar heat of solution of RbBr. ΔHsoln= 2. In a constant‑pressure calorimeter, 60.0 mL of 0.340 M Ba(OH)2 was added to 60.0 mL of 0.680 M HCl. The reaction caused the temperature of the solution to rise from 22.24 ∘C to 26.87 ∘C. If the solution has the...