Stoichometry Review 2022

The Furry Thing

100

The SI unit for the amount of substance

the mole

200

When using a mole ratio, the numbers come from . . . 

coefficeints.

300

How many moles are in 60g of neon?

3 moles

400

NaCl + MgSO_4. --> MgCl₂ + Na₂SO₄

Write all the possible mole ratios. 

2 mole NaCl/1 mol MgSO₄

2 mole NaCl/1 mol MgCl₂

2 mole NaCl/1 mol Na₂SO₄ 

1 mol MgSO₄ / 1 mol MgCl₂

1 mol MgSO₄ / 1 mol Na₂SO₄ 

1 mol MgCl₂ / 1 mol Na₂SO₄ 

500

How many atoms of carbon are in 84.0 grams of sodium bicarbonate?

6.02 x 10²³ atoms

What's in a name?

100

Sodium carbonate's chemical formula is

Na₂CO₃

200

HBrO₃ is called. . . 

bromic acid

300

While NO₃^-2 is an ion, NO₂ is not and has a chemical name of . . . 

Nitrogen dioxide

400

Methane, CH₄, burns when it is collected from pig waste lagoon.  Write the balanced equation. 

CH₄ + O₂ --> 2 H₂O + CO₂

500

Name the products and give the balanced equation for the reaction of CuSO₄ and K₃PO₄.

3 CuSO₄ + 2 K₃PO₄ --> 3 K₂SO₄ + Cu₃(PO₄)₂

    potassium sulfate     copper (II) phosphate

Number games

100

NaCl + Mg₃P₂ --> Na₃P + MgCl₂

If you have 6 moles of MgCl_2, how many moles of NaCl will be needed?

12 moles NaCl

200

NaCl + Mg₃P₂ --> Na₃P + MgCl₂

If you have 268 grams of MgCl_2, how many moles of Na₃P will be produced?

1.87 mole Na₃P

300

NaCl + Mg₃P₂ --> Na₃P + MgCl₂

If you have 0.50 moles of Na₃P_, how many grams of Mg₃P₂ will be needed?

34 grams Mg₃P₂

400

NaCl + Mg₃P₂ --> Na₃P + MgCl₂

If 255 grams of Na₃P are produced_, how many grams of NaCl will be needed?

448 grams NaCl

500

NaCl + Mg₃P₂ --> Na₃P + MgCl₂

If 255 grams of Na₃P are produced_, how many atoms  of Cl will be needed?

4.61 x 10²⁴ atoms Cl

I want more!

100

The substance the remains after a reaction is complete is . . . 

Excess reactant

200

In order to find a limiting reactant, a single _________ must be compared. 

Product

300

C₃H₈ + 5 O₂ --> 3 H₂O + 4 CO₂

Find the limiting reactant if you have 2.0 moles of propane and 6.0 mol of O₂.

O₂ is limiting

400

C₃H₈ + 5 O₂ --> 4 H₂O + 3 CO₂

What is the maximum number of moles of each product that can be produced if you start with 2.0 mol of propane and 6.0 mol of O₂?

4.8 mol H₂O

3.6 mol CO₂

500

C₃H₈ + 5 O₂ --> 4 H₂O +3 CO₂

If you start with 2.0 moles of propane and 6.0 moles of O_2.  How many GRAMS of excess reactant remain?

35 grams CO₂ remain

Stuff I should know.

100

All stoichometry problems must begin with . . . 

a balanced equation

200

Luke's father is . . . 

Darth Vader

300

The empirical formula for glucose is . . . 

CH₂O

400

The name of Captain Kirk's ship is The . . . 

Enterprise. 

500

In Collision theory, these three things must occur in order to have a reaction. 

1) Collision

2) Correct orientation

3) Correct amount of energy.