Mole Conversion Practice

Front

What is a mole in chemistry?

Back

A mole is a unit of measurement used to express amounts of a chemical substance. It is defined as the amount of substance that contains as many entities (atoms, molecules, etc.) as there are in 12 grams of carbon-12.

Front

How many atoms are in one mole of a substance?

Back

One mole of any substance contains approximately 6.02 x 10^23 entities, known as Avogadro's number.

Front

What is the formula to convert atoms to moles?

Back

To convert atoms to moles, use the formula: Moles = Number of atoms / Avogadro's number (6.02 x 10^23).

Front

How do you convert grams to moles?

Back

To convert grams to moles, use the formula: Moles = Mass (g) / Molar mass (g/mol).

Front

What is the molar mass of an element?

Back

The molar mass of an element is the mass of one mole of that element, typically expressed in grams per mole (g/mol).

Front

How do you find the molar mass of a compound?

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To find the molar mass of a compound, sum the molar masses of all the atoms in its chemical formula.

Front

What is dimensional analysis in chemistry?

Back

Dimensional analysis is a mathematical technique used to convert between units by multiplying by conversion factors.

Front

What is the conversion factor for moles to molecules?

Back

The conversion factor is 1 mole = 6.02 x 10^23 molecules.

Front

How many moles are in 3.01 x 10^22 atoms of magnesium?

Back

0.050 moles Mg (calculated using the formula: Moles = Number of atoms / 6.02 x 10^23).

Front

What is the molar mass of Hydrogen Peroxide (H2O2)?

Back

The molar mass of Hydrogen Peroxide (H2O2) is 34.02 g/mol.