Stoichiometry Flashcard

Front

What is the molar mass of C₆H₁₂O₆?

Back

180 g

Front

Calculate the molar mass of Mg(OH)_2.

Back

58.3 g/mol

Front

N₂ + 3H₂ → 2NH₃
How many moles of hydrogen are needed to react with 2 moles of nitrogen?

Back

6

Front

Balance the reaction: CaC₂(s) + H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)

Back

1,2,1,1

Front

What is the first thing you must do to solve a stoichiometry problem?

Back

Write a Balanced Equation

Front

You need 2 pieces of bread, 1 tablespoon of peanut butter and 2 tablespoons of jelly to make a sandwich. If you have 10 pieces of bread, 4 tablespoons of peanut butter and 20 tablespoons of jelly, what is the limiting reactant?

Back

peanut butter

Front

What is the molar mass of Carbon? Options: 6, 12, 20, 40

Back

12

Front

How many moles is 4 grams of Calcium?

Back

0.10 moles

Front

What is Avogadro's Number? Options: 602,000, 23 x 10⁶, 10 x 10²³, 6.02 x 10²³

Back

6.02 x 10²³

Front

In the image, which reactant is limiting?

Back

The black atoms, because they are completely used up.