Unit 8 Intro

Front

How many phosphate ions are in 1 mole of Magnesium Phosphate (Mg3(PO4)2)?

Back

There are 2 moles of phosphate ions in 1 mole of Magnesium Phosphate.

Front

What is Avogadro's number?

Back

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

Front

How do you calculate the number of particles in a given number of moles?

Back

Multiply the number of moles by Avogadro's number (6.022 x 10^23).

Front

If you have 2 moles of F2, how many atoms of fluorine do you have?

Back

You have 4 moles of fluorine atoms because each F2 molecule contains 2 fluorine atoms.

Front

What is the molar mass of CaCl2?

Back

The molar mass of CaCl2 is approximately 110.98 g/mol.

Front

How many moles are in 3.01 x 10^24 particles?

Back

There are 5 moles in 3.01 x 10^24 particles.

Front

What is the total number of atoms in one molecule of H2O?

Back

There are 3 atoms in one molecule of H2O (2 hydrogen and 1 oxygen).

Front

How many moles of Cl- ions are in 1 mole of CaCl2?

Back

There are 2 moles of Cl- ions in 1 mole of CaCl2.

Front

What is the relationship between moles and mass?

Back

Mass (g) = Moles x Molar Mass (g/mol).

Front

How many total atoms are in one molecule of Na2SO4?

Back

There are 7 atoms in one molecule of Na2SO4 (2 sodium, 1 sulfur, and 4 oxygen).