if the mask contains 0.150L KO2 and 1.3L of H20. What is the limiting reactant using KOH as your product?

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.

What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?

Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?