Multi Step Mole Conversions

Front

What is the molar mass of SrCl2?

Back

The molar mass of SrCl2 (Strontium Chloride) is approximately 158.5 g/mol.

Front

How do you convert moles to grams?

Back

To convert moles to grams, multiply the number of moles by the molar mass of the substance (grams = moles × molar mass).

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

How do you convert grams to moles?

Back

To convert grams to moles, divide the mass in grams by the molar mass of the substance (moles = grams / molar mass).

Front

What is the volume of one mole of gas at STP?

Back

At Standard Temperature and Pressure (STP), one mole of an ideal gas occupies 22.4 liters.

Front

How many molecules are in one mole of a substance?

Back

One mole of any substance contains Avogadro's number of molecules, which is 6.022 x 10^23.

Front

What is the formula to calculate the number of moles from volume?

Back

Number of moles = Volume (L) / 22.4 L.

Front

How do you find the number of molecules from moles?

Back

To find the number of molecules, multiply the number of moles by Avogadro's number (molecules = moles × 6.022 x 10^23).

Front

What is the relationship between moles and volume for gases?

Back

For gases at STP, the volume in liters is equal to the number of moles multiplied by 22.4 L.

Front

How do you calculate the mass of a substance from the number of molecules?

Back

To calculate mass from molecules, first convert molecules to moles using Avogadro's number, then convert moles to grams using the molar mass.