Mole Conversion Homework

Front

What is a mole in chemistry?

Back

A mole is a unit of measurement used to express amounts of a chemical substance, defined as exactly 6.022 x 10^23 particles (atoms, molecules, ions, etc.).

Front

How do you convert atoms to moles?

Back

To convert atoms to moles, divide the number of atoms by Avogadro's number (6.022 x 10^23).

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 do you calculate molar mass?

Back

Molar mass is calculated by summing the atomic masses of all atoms in a chemical formula, expressed in grams per mole (g/mol).

Front

What is the molar mass of KCl?

Back

The molar mass of KCl (Potassium Chloride) is approximately 74.55 g/mol.

Front

How do you find the number of moles from mass?

Back

To find the number of moles from mass, divide the mass of the substance (in grams) by its molar mass (g/mol).

Front

What is the formula to calculate the number of moles?

Back

Number of moles = mass (g) / molar mass (g/mol).

Front

What is the significance of STP in gas calculations?

Back

STP (Standard Temperature and Pressure) provides a reference point for gas calculations, allowing for consistent volume measurements.

Front

How do you calculate the molar mass of a compound like Ba(C2H3O2)2?

Back

Add the atomic masses of Barium (Ba), Carbon (C), Hydrogen (H), and Oxygen (O) based on the number of each atom in the formula.

Front

What is the molar mass of UF6?

Back

The molar mass of Uranium Hexafluoride (UF6) is approximately 352 g/mol.