1. If Lavoisier reacted 168 liters of hydrogen at STP and produced 13.5 grams of water, what was his percent yield?

2. 35.0 liters of oxygen was reacted with excess hydrogen to produce 48.0 grams of water.

What is the percent yield?

If the particles in a sample of matter have an orderly arrangement and move only in place, the sample is a

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?

What is the mass of oxygen gas is consumed in a reaction that produces 4.60mol so2