A solution contains 3.50 g of a nonvolatile pure hydrocarbon in 95 g acetone. The boiling points of pure acetone and the solution are 55.95°C and 56.50°C, respectively. The molal boiling point constant of acetone is 1.7 1°C-kg/mol. What is the molar mass of the hydrocarbon? Molar massg/mol Submit Answer Try Another Version 5 item attempts remaining

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What is the freezing point (in degrees Celcius) of 4.11 kg of water if it contains 191.8 g of CaBr₂? The freezing point depression constant for water is 1.86 °C/m and the molar mass of CaBr₂ is 199.89 g/mol. Type answer:

A solution is prepared by dissolving 11.3 g of Ca(NO3)2 in 115 g of water. The molal freezing point depression constant for water kf, is 1.86°C/m and the molal boiling point elevation constant for water kb, is 0.512°C/m. The molar mass of the solute is __________ g/mol.   The molal concentration of the solution is __________ m.   The change in the boiling point of the solvent when Ca(NO3)2 was added is __________ OC.   The resulting boiling point of the solution is __________ OC.   The freezing point of the solvent depresses by __________ OC.   The freezing point of the solution is __________ OC.

Express the 1% Sodium Lauryl Sulfate (NaC12H25SO4: p=1.01 g/ml) solution in the following concentrations. Please encode all your solutions. 1. mg % Answer: 2. Mole percent of solute Answer: 3. Molarity Answer: 4. Molality Answer: 5. Normality Answer:

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ework i Saved 2 attempts left Check my work Enter your answer in the box provided. What is the molality of a solution consisting of 54.1 mL of benzene (C,H,; d= 0.877 g/mL) in 255 mL of hexane (CH14; d= 0.660 g/mL)?

ANSWER: C. 2.5% acyclovir, 0.6 g lidocaine Show an organized solution on how to get into the given answer, especially the "2.5% acyclovir".  Thank you! PLS SHOW UNDERSTANBLE SOLUTION

A bottle of wine contains 12.0% ethanol by volume. The density of ethanol (C2 H, OH) is 0.789 g/cm". Calculate the concentration of ethanol in wine in terms of mass percent and molality. a. Mass percent b. Molality = mol/kg Submit Answer Try Another Version 1 item attempt remaining

A solution containing 3.30 g  of an unknown nonelectrolyte liquid and 10.00 g  water has a freezing point of −3.33 °C. The Kf = 1.86 °C/m for water. Calculate the molar mass of the unknown liquid in g/mol. Answer:_____ g/mol