Molar Conversions

Front

What is molar mass?

Back

The molar mass is the mass of one mole of a substance, typically expressed in grams per mole (g/mol). It is calculated by summing the atomic masses of all atoms in a molecule.

Front

How do you calculate the number of grams from moles?

Back

To calculate grams from moles, use the formula: grams = moles × molar mass.

Front

What is the molar mass of beryllium chlorate (Be(ClO3)2)?

Back

The molar mass of beryllium chlorate is 175.91 g/mol.

Front

How many grams are in 3.3 mol of Potassium Sulfide (K2S)?

Back

To find grams: 3.3 mol × 110.27 g/mol = 360 g.

Front

What is the chemical formula for magnesium carbonate?

Back

The chemical formula for magnesium carbonate is MgCO3.

Front

How do you determine the number of atoms in a sample?

Back

To determine the number of atoms, first convert grams to moles using molar mass, then multiply by Avogadro's number (6.022 x 10^23 atoms/mol).

Front

What is Avogadro's number?

Back

Avogadro's number is 6.022 x 10^23, which is the number of particles (atoms, molecules, etc.) in one mole of a substance.

Front

What is the formula for calculating moles from grams?

Back

To calculate moles from grams, use the formula: moles = grams / molar mass.

Front

What is the name of the compound Cr(NO2)3?

Back

The name of the compound Cr(NO2)3 is chromium III nitrite.

Front

How do you find the molar mass of a compound?

Back

To find the molar mass, sum the atomic masses of all elements in the compound, multiplied by their respective quantities.