0.5 grams of Calcium was reacted with 0.01 L of a 2.5 M Phosphoric Acid What is the balanced chemical equation, limiting reactant, How many moles of hydrogen gas, and how many liters produced assuming the pressure is 1.01 atm and the temperature is 300 K.
Then what is the % yield if you only produced .98 grams of calcium phosphate?

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.

You have 125g of a certain seasoning and are told that it contains 76.0 g of salt what is the percentage of salt by mass in this seasoning

All of the following are part of the biosphere except