A solution is made by dissolving 5.0g of a non-electrolyte in 102. g of water. The boiling point of the resulting solution is 100.10°C. What is the molar mass of the non-electrolyte? (Kb(H2O)=0.51kg-°C/mol)
A. 26 g/mol
B. 1.2 x 103
C. 2.5 x 102 g/mol
D. 46 g/mol
E. 8.8 x 102 g/mol
I keep getting 0.25, please show the steps!
A solution is made by dissolving 5.0g of a non-electrolyte in 102. g of water. The...
A solution is prepared by dissolving 11.10 g of an unknown non-electrolyte solute in 78.64 g of cyclohexane. The freezing point of the solution is found to be 2.06 oC. What is the molar mass of the unknown solute in g/mol? Please report your answer with 3 significant figures. Answer g/mol
When (8.61x10^1) g of a non-electrolyte is dissolved in (5.3100x10^2) g of a solvent (with Kb = 0.416°C/m) the boiling point of the solution is 1.50°C higher than the boiling point of the pure solvent. What is the molar mass (in g/mol) of the non- electrolyte solute? Enter your answer in scientific notation with 3 sig figs. Do not include any units in your answer. Do not round any intermediate calculations. Note: Your answer is assumed to be reduced to...
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1. A solution was prepared by dissolving 2.20g of urea (H2NCONH2) in 50.00g of water. If for H2O Tb = 100C, Tf = 0C, Kb = 0.52C / m and Kf = 1.86C / m, determine the freezing and boiling point of the solution. 2. A solution is prepared by dissolving 17.41g of a substance X in 600g of benzene and the resulting solution is frozen at 4.00C. If the freezing point of pure benzene is 5.55C and its Kf...
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