Unit 6 Jeopardy Review!

The Mole

100

Calculate the number of atoms in 0.95 mol of Be

5.7x10²³ atoms

200

Calculate the number of moles in 3.4x10²⁴ atoms of Mg

5.6 moles

300

Calculate the number of molecules in 1.46 mol of NO₂

8.79x10²³ molecules

400

Calculate the number of moles in 1.6x10²³ molecules of CaBr₂

0.27 moles

500

Calculate the number of molecules in 4.9 mol of Cr₂(CO₃)₃

3.0 x 10²⁵ molecules

Molar Mass 1

100

Determine the molar mass of FeCl₃

162.2 g/mol

200

Determine the molar mass of F₃N₇

155 g/mol

300

Determine the molar mass of CuSO₄

159.61 g/mol

400

Determine the molar mass of Al₂(CO₃)₃

233.99 g/mol

500

Determine the molar mass of Co(HSO₄)₂

253.07 g/mol

Molar Mass 2

100

Determine the molar mass of Lead (II) oxide

239.2 g/mol

200

Determine the molar mass of dichlorine pentasulfide

231.23 g/mol

300

Determine the molar mass of Potassium phosphate

196.27 g/mol

400

Determine the molar mass of Nickel (III) sulfate

405.59 g/mol

500

Determine the molar mass of Magnesium bicarbonate

146.35 g/mol

Calculations using Molar Mass

100

Calculate the mass in grams of 3.6 mol of Sn

427.35 g

200

Calculate the number of moles contained in 40. grams of As

0.53 mol

300

Calculate the mass in grams of 1.75 mol of Mg(NO₃)₂

259.52 g

400

Calculate the number of moles contained in 500 g of Na₂CO₃

Calculate the number of moles contained in 500 g of Na₂CO₃

500

Calculate the number of moles of butane (C₄H₁₀) in 99 grams of butane

1.71 mol

% By Mass

100

What is the percent by mass of oxygen in water?

88.8% Oxygen

200

What is the percent by mass of nitrogen in dinitrogen pentoxide?

25.94% Nitrogen

300

What is the percent by mass of lithium in lithium sulfate?

12.63% lithium

400

What is the percent by mass of each element in magnesium chloride?

25.53% Magnesium / 74.47% chlorine

500

What is the percent by mass of each element in hydrogen cyanide? 

3.73% hydrogen / 44.43% carbon / 51.84% nitrogen