Given the equation for a s’more:
2 Graham crackers + 1 piece of chocolate + 4 mini-marshmallows --> 1 s’more
Which of the following activities makes accurate use of stoichiometry to plan for 1 s’more per person at a bonfire with 20 guests?
Given the equation:
Na3PO4 + 3 KOH --> 3 NaOH + K3PO4
What is the first step in determining how much sodium hydroxide (NaOH) is produced when starting with 5 grams of sodium phosphate and excess potassium hydroxide?
Given the equation:
2 Al + 6 HCl --> 3 H2 + 2 AlCl3
How many moles of HCl are required to produce four moles of AlCl¬3?
What is a mole ratio?
In the following equation:
12 HClO4 + P4O10 → 4 H3PO4 + 6 Cl2O73PO4 to HClO4?
In the equation:
2 Na3P + 3 CaF2 -> 6 NaF + Ca3P2
How many moles of Na3P must react with 12 moles of CaF2 to use all the reactant up?
Another way of making ammonia, besides the Haber-Bosch process, is to combine barium nitride with water, according to the equation:
Ba3N2 + 6 H2O → 3 Ba(OH>2 + 2 NH3
If you want to make 100 moles of ammonia, how many moles of barium nitride do you need?
Once you’ve obtained the ammonia, you could use it to manufacture nitrous oxide (otherwise known as laughing gas), according to the equation:
4 NH3 + 5 O2 → 4 NO + 6 H2O
True or false: If you have 20 moles each of ammonia and oxygen, ammonia is the
Why is stoichiometry important to a manufacturer who makes chemical products?
Silver chloride is an antiseptic substance that is used in some bandages and deodorants. Let’s say you are planning to produce silver chloride for a bandage maker, according to the chemical equation:
KCI + AgNO3 → AgCl + KNO3
If you want to be sure that all the AgNO3 is used up, so you will make ______ the limiting reactant by adding _________ of it than the other reactant (given that the mole ratio is 1:1).