Stoichiometry Jeopardy

Molar Mass

100

To 2 decimal places:

What is the molar mass of Cl?

35.45

200

To 2 decimal places:

What is the molar mass of NaCl?

58.44

300

To 2 decimal places:

What is the molar mass of H₂SO₄?

98.09

400

To 2 decimal places:

What is the molar mass of (NH₄)₂SO₄?

132.17

500

To 2 decimal places:

What is the molar mass of CH₃NH₂OHClNH₂SO₄

195.56

Mass to Moles

100

How many moles are in 18.02g of H₂O?

1 mol

200

How many moles are in 17 g of K?

0.43 moles

300

How many moles are in 284 g of NH₄Cl?

5.31 moles

400

How many moles are in 56 g of potassium oxide?

0.49 moles

500

How many moles are in 567g of dinitrogen pentoxide?

5.25 moles

Moles to Mass

100

How many grams are in 1 mole of Cl?

35.45

200

How many grams are in 3 moles of RbF?

313.41

300

How many grams are in 5.7 moles of Li₄C?

226.69

400

How many grams are in 2 moles of Magnesium Hydroxide?

116.66

500

How many grams are in 3 moles of CH₃NH₂C₄H₈?

261.57

Empirical Formula

100

Is this E or M?

CH

E

200

Determine the formula if:

88.8% Cu, 11.2% O

Cu₂O

300

Determine the formula if:

14.1% C, 2.4% H, 83.5% Cl

CH₂Cl₂

400

Determine the formula if:

43.7% P, 56.3% O

P₂O₅

500

Determine the formula if:

26.58% K, 35.35% Cr, 38.07% O

K₂Cr₂O₇

Molecular Formula

100

What is the molecular formula if CH₂O is increased 3 times?

C₃H₆O₃

200

Determine the empirical formula for C₆H₁₂O₆

CH₂O

300

Determine the formula if: a molecular formula of NH₃ has a mass of 68.12g

N₄H₁₂

400

Determine the formula if: a molecular formula of P₂O₅ has a mass of 709.7g

P₁₀O₂₅

500

Determine the formula if: a molecular formula of CH₃NH₂O has a mass of 141.18

C₃H₉N₃H₆O₃