Mole & Data Analysis Review

Avogadro's

100

What is Avogadro's number?

6.02x10²³

200

A mole is also known as:

Avogadro's number

300

Which element has the most particles: 1 mol C or 1 mol H?

All the same

400

How many moles are in 5.2x10²³ atoms of gold?

0.86 mol Au

500

How many formula units in 3.55 mol of sodium chloride?

2.14x10²⁴ f.u. NaCl

Mass

100

What is the unit for molar mass?

grams/mole

200

Which element has the largest mass: 1 mol Na, 1 mol C, or 1 mol O?

1 mol Na

300

How many grams of tin are found in 5.3 moles of tin (Sn)?

629.163 grams Sn

400

What is the molar mass of (NH₃)₂?

34.062 g/mol

500

How many moles of sodium (Na) are equal to 6.92 g?

0.301 mol

Conversion Factors

100

Write the fraction only: How many grams are contained in 0.54 moles of calcium (Ca)?

molar mass / 1 mole

200

Write the fraction only: Convert 2.54 moles magnesium carbonate (MgCO₃) to formula units (f.u.).

6.02*10²³ f.u. / 1 mole

300

Write the fraction only: Convert 3.1 moles of water to grams of water.

molar mass / 1 mole

400

Write the fraction only: Convert 5.3 x 10 25 molecules of carbon dioxide (CO₂) to moles

1 mole / 6.02*10²³ molecules

500

Write the fraction only: 1.23 x 10²⁸ formula units (f.u.) of aluminum oxide (Al₂O₃) is equal to how many moles?

1 mole / 6.02*10²³ f.u.

Measurements/Units

100

What unit is used to measure molar mass?

Grams per mole

200

Convert 342 milliliters to liters.

0.342

300

Which metric system unit is the smallest: kilometer, meter, or millimeter?

millimeter

400

Accurate, Precise or both?

True value: 4.67

Tested values: 4.01, 4.03, 4.03

Only precise

500

Write this number in scientific notation: 4,750,000

4.75x10⁶