Mole Jeopardy

Molar Mass

100

What is the molar mass  of  Li?

6.94 grams/mole

200

What is the molar mass of CO₂?

44.01 grams/mole

300

What is the molar mass of Na₂SO₄

141.8 grams/mole

400

What is the molar mass of Al(NO₃)₃?

213 grams/mole

500

What is the molar mass of CuCl₂ 4H₂O?

206.48 grams/mole

1-Step Conversions

100

How many grams are in 2.5 moles of H₂O?

45.05 g

200

How many moles in 3.011 x 10²³ atoms Mg?

0.5000 mol Mg

300

How many atoms in 6.755 mol Pb?

4.068 x 10²⁴ atoms Pb

400

How many atoms in 0.250 mol S?

1.51 x 10²³ atoms S

500

How many moles in 0.00750 g Ag? (in scientific notation)

6.95 x 10^-5 mol Ag

2-Step Conversions

100

How many grams in 10.5 x 10²³ atoms Mg?

42.38 g Mg

200

How many atoms in 0.02550 g Pt?

7.872 x 10¹⁹ atoms Pt

300

How many grams in 4.50 x 10¹² atoms Cl?

2.65 x 10^-10 g Cl

400

How many grams in 8.42 x 10²¹ atoms NaBr?

1.44 g NaBr

500

How many grams are in 1.45x10²² molecules of O₂?

0.77 g O₂

Percent Composition

100

What is the percent composition of Na in NaCl?

39.3%

200

What is the percent composition of O in CO₃?

79.9%

300

What is the percent composition of C in C₆H₁₂O₆?

40%

400

What is the percent composition of O in Mg(NO₃)₂?

64.6%

500

What is the percent composition of H₂O in MgCl₂ 7H₂O?

57%

Empirical Formula

100

What is the empirical formula of C₄H₁₀?

C₂H₅

200

A compound contains 1.52g of nitrogen and 3.47g of oxygen. What is its empirical formula?

NO₂

300

A compound contains 18.8% sodium, 29.0% chlorine, and 52.2% oxygen. Determine the empirical formula.

NaClO₄

400

Ascorbic acid is another name for vitamin C. It is composed of 40.92% C, 4.58% H, and 54.5% O. Determine the empirical formula of ascorbic acid. 

C₃H₄O

500

L-Dopa, a drug used for the treatment of Parkinson's disease is 54.82% C, 5.62% H, 7.10% N and 32.46% O. What is the empirical formula of L-Dopa?

C₉H₁₁NO₄