At 571. mm hg and 175 k, a gas sample has a volume of 227 ml. what is the final pressure (in mm hg) at a volume of 563 ml and a temperature of 357 k?

Does anyone know a lot about how to: - calculate mass of magnesium metal - calculate the actual yield of magnesium oxide - calculate the theoretical yield of mgo - calculate the percent yield of mgo - determine the percent yield of mgo - determine the average percent yield of mgo i had to do an online lab and its asking these questions but i have no idea where to start or how to be able to find these things. i can post the chart of the data from the lab or if you can tell me exactly how i can find each.

In salt water solution,the salt is the blank

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