General Chemistry Answers

How many Na⁺ ions are contained in 4.62 g of Na₃PO₄?

The vapor pressure of pure water at 26°C is 25.2 torr. What is the vapor pressure of a solution which contains 20.0 g of glucose (C₆H₁₂O₆), in 70 g water?

When 10.6 g of a nonvolatile substance is dissolved in 740 g of ether, its boiling point is raised 0.284°C. What is the molar mass of the substance?

What is the freezing point of a 10% (by mass) solution of CH₃OH in water?

A solution is prepared by dissolving 1.08 g of the protein human serum albumin, obtained from blood plasma in a 50 cc aqueous solution. If the solution has an osmotic pressure of 5.85 mmHg at 298 K, what is the molecular weight of the albumin?

Calculate the freezing point and the boiling point of a solution that contains 35 g of C₁₂H₂₂O₁₁ in 370 g of water.

The vapor pressure of water at 28°C is 28.35 torr. Compute the vapor pressure at 28°C of a solution containing 68 g of cane sugar (C₁₂H₂₂0₁₁) in 1000 g of water?

The freezing point of pure camphor is 178.4°C, and its molal bpt contant, Kf, is 40°C. kg/mol. Find the freezing point of a solution containing 1.50 g of a compound of molar mass 125 in 35 g of camphor.

What would be the osmotic pressure at 17°C of an aqueous solution containing 1.75 g of sucrose (C₁₂H₂₂0₁₁) per 150 cc of solution?

The molar mass of an organic compound is 58. What is the boiling point of a solution containing 24 g of solute and 600 g of water, when the barometric pressure is such that pure water boils at 99.725°C?