A mixture of H2 and water vapor is present in a closed vessel at 20°C. The total pressure of the system is 755. 0 mmHg. Partial pressure of water vapor at 20°C equals 17. 5 mmHg. What is the partial pressure of H2? mmHg.

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?

A1.5l container holds p.50 grams of an unknown gas at a pressure of 0.44 atm and a temperature of 50.c what is the molar mass of the unknown gas

Convert .347 kilometers to miles show your work