E13.022 – Colloids
OWLv2 for General Chemistry
Cengage
01st Edition
A type of colloid is given. What is the phase and what phase is it dispersed in?
A type of colloid is given. What is the phase and what phase is it dispersed in?
An x molal solution is given as well as it’s melting point. What is the effective number of particles?
A polymer of large molar mass is dissolved to form a solution that rises to a final height of x cm. The solution has x g polymer per liter and a given density. What is the molar mass?
Water is mixed with a gas at a certain pressure in atm. X kg of the solution is removed and results in a volume (L), temperature (°C) and pressure (atm). What is the Henry’s law constant?
The vapor pressure of a substance at a certain temperature is given. The vapor pressure of water at the same temperature is also given. What is the freezing point?
The Henry’s law constant for a hydrocarbon is given in atm. A solution has x grams of the hydrocarbon per x L of water. Calculate the partial pressure and number of molecules per cubic centimeter.
Complete combustion of x grams yield x grams CO2 and x grams H2O. Grams of the compound dissolved in grams of water as well as the freezing point and Kfp are also given. Determine the molecular formula.
You want to make a X molality (m) solution using a substance and x grams of water. How many grams of the substance do you need?
In the lab a student creates a new nonvolatile nonelectrolyte compound. X grams are dissolved in x mL of water. Osmotic pressure (atm) and temperature (K) are also given. Determine the molecular weight.