Module 4 Final Jeopardy

Molar Mass

100

What is the molar mass of CO₂?

(30 seconds)

~44 g/mol

200

What is the molar mass of HCl (hydrochloric acid)?

(30 seconds)

~36.5 g/mol

300

What is the molar mass of AuCu?

(45 seconds)

~260.51 g/mol

400

What is the molar mass of C₆H₁₂O₆?

(60 seconds)

~180.16 g/mol

500

What is the molar mass of Al₂(SO₄)₃?

(90 seconds)

~342.15 g/mol

Converting Moles and Grams

100

If I have 2 moles of CH₄ (CH₄ = 16 g/mol), how many grams of CH₄ do I have?

(30 seconds)

~32 g of CH₄

200

If I have 3 moles of H₂O (H₂O = 18 g/mol), how many grams of H₂O do I have?

(30 seconds)

~54 g of H₂O

300

If I have 96 grams of O₂ (O₂ = 32 g/mol), how many moles of O₂ do I have?

(45 seconds)

~3 moles of O₂

400

If I have 256 grams of CH₄ (CH₄ = 16 g/mol), how many moles of CH₄ do I have?

(45 seconds)

~16 moles of CH₄

500

If I have 5 moles of CO, how many grams of CO do I have?

(60 seconds)

~140 grams of CO

Empirical Formula & Molecular Formula

100

What is the molecular formula?
Molar Mass = 28 g/mol
C = 85.64%
H = 14.37%

(75 seconds)

C₂H₄

200

What is the molecular formula?
Molar Mass = 132 g/mol
C = 27.29%
O = 72.71%

(75 seconds)

C₃O₆

300

What is the molecular formula?
Molar Mass = 58 g/mol
C = 41.39%
H = 3.47%
O = 55.13%

(90 seconds)

C₂H₂O₂

400

What is the molecular formula?
Molar Mass = 180 g/mol
C = 40.0%
H = 6.7%
O = 53.3%

(105 seconds)

C₆H₁₂O₆

500

What is the molecular formula?
Molar Mass = 144 g/mol
C = 33.3%
H = 2.8%
N = 19.4%
O = 44.4%


(120 seconds)

C₄H₄N₂O₄

Calculating Product

100

CH₄ + 2O₂ → CO₂ + 2H₂O

If I have 32 grams of CH₄ (16 g/mol), how many grams of CO₂ (44 g/mol) will I get?

(60 seconds)

88 g CO₂

200

CH₄ + 2O₂ → CO₂ + 2H₂O

If I want 132 grams of CO₂ (44 g/mol), how many grams of CH₄ (16 g/mol) will I need?

(60 seconds)

48 g CH₄

300

CH₄ + 2O₂ → CO₂ + 2H₂O

If I have 64 grams of O₂ (32 g/mol), how many grams of CH₄ (16 g/mol) will I need?

(75 seconds)

16 g CH₄

400

CH₄ + 2O₂ → CO₂ + 2H₂O

If I have 16 grams of O₂ (32 g/mol), how many grams of CO₂ (16 g/mol) will I get?

(75 seconds)

4 g CO₂

500

CH₄ + 2O₂ → CO₂ + 2H₂O

If I have 12 grams of O₂ (32 g/mol), how many grams of H₂O (16 g/mol) will I get?

(120 seconds)

6 g H₂O

Hard Mode (Double Points)

100

Chemophobia is defined as...

(10 seconds)

the fear of chemicals.

200

The acid inside of our stomach is called...

(15 seconds)

Hydrochloric acid


_{(or hydrogen chloride, muriatic acid, or spirits of salt)}

300

Anemia is caused by a lack of...

(15 seconds)

iron

400

In a hydrogen (H₂) car engine, after reacting with oxygen (O₂) the only chemical waste product is...

(15 seconds)

Water (H₂O)

500

If I want 56 grams of FeCl₂, how many grams of HCl will I need?

UNBALANCED Equation:
Fe + HCl → FeCl₂ + H₂

(120 seconds)

~32.2 g HCl