Stoichiometry Assessment A

1. If 13.5 moles of oxygen are reacted with an excess of ammonia, how many moles of NO and of H20 are

formed given the following reaction? Show all work for credit.

4 NH3 + 502 - --> 4 NO + 6H20

What happens to valence electrons in metals?

How many moles of lithium are in 25 grams of lithium

The osmotic pressure, Π, of a solution of glucose is 83.1 atm. Find the molarity of the solution at 298 K. Express the molarity to three significant figures and include the appropriate units.

What is the balanced equation of the decomposition reaction of hydrogen peroxide?

The particles remain seperate and don't combine? What is this a mixture or a solution?

If a sealed syringe that contains some gas in heated in which direction will the syringe plunger move

Use the drop‑down menus to label the statements as either true of false. Dichloromethane is flammable. true false Methanol is flammable. Concentrated sulfuric acid is corrosive. 10% sodium carbonate solution must be used in the fume hood.

What is the process all rocks are continuously in during which that can change into other types of rocks

Collagen is made of fibers and is found in tendons and cartilage. Collagen contributes to meat toughness and is, therefore, an example of which type of protein?

1. Why does CH30 evaporate faster than water?