General Chemistry Answers

Ethylene glycol C2H6, is a common automobile antifreeze agent. Calculate the freezing point of solution containing 651 grams of EG in 2505 grams of water. The molar mass of EG is 62.01 g/mol (Kf=1.86° C/m) and (Kb= 0.52 ° C/m for water)

Show your solution.

find the percent by volume of a 37 ml solution if it contains 16 ml of potassiuk hydroxide

6.80 g of soduim chloride are added to 265 g of water. find the mole fraction of thesoduim chloride and water in the solutiom

Calculate the boiling point of solution containing 3.5 g sugar (molar mass=342g) dissolve in water. Show your solution.

For a solution of pH 5.0 at 25°C, calculate [H⁺] and [OH^-].

A 14.0 L tank contains 250 g of methane (CH4) gas at 27 atm at 298 K. Accidentally, 190 g of CO₂ was added to the tank. What will be the resulting pressure of the mixture in the tank? Assume that no CH4 leaked out as the CO₂ gas was being added.

A 5.0 L ballon has a pressure of 1.0 atm at sea level, where the temperature is 28°C. The balloon was let loose and ascended to a height in the temperature where the temperature is 11°C. What will be the volume of the balloon if the atmospheric pressure at the new altitude is 0.65 atm?

A 15 L tank is filled with oxygen gas for the use in a hospital. How many grams of O₂ is inside the tank if the pressure is 75 psi at 28°C?

A 25.0 L tank contains 2.0 kg of neon gas with a pressure of 98.0 atm at 25°C. How many kilograms of 0₂ can fill the tank under the same pressure and temperature?

A 9.75 g sample of a compound contains 3.11of potassium, K, 2.82g of chlorine, Cl, and oxygen, O. Calculate the empirical formula.

Insert subscripts as needed.