Molar Mass
What is the molar mass of Lithium?
6.941 g/mol
What is the smallest unit in which a substance can be broken down without a change in composition?
A representative particle
How many liters are equal to one mole?
22.4 L
How many moles are in 18 grams of water?
1 mol
What is the molar mass of MgO?
What is 40.304 g/mol.
What does STP stand for in chemistry?
Standard temperature and pressure
Describe the process for determining molar mass.
1. Count the atoms. 2. Determine atomic mass for each element. 3. Add the atomic masses for each element.
How many moles are in 9.8 grams of calcium?
.24 mol
What is the molar mass of H2O?
What is 18.0153 g/mol.
What is the mass of a mole of a substance?
Molar mass
What is Avogadro's number?
6.02 x 10^23
How many grams are in 4.5 moles of sodium fluoride, NaF?
188.96 g
What is the molar mass of Be(NO2)2?
What is 101.0232 g/mol.
What is the volume occupied by one mole of a gas at standard temperature and pressure?
Molar volume
How do you convert from moles to grams?
Multiply by molar mass
How many grams are in 0.02 moles of beryllium iodide, BeI2
5.26g
What is the molar mass of Mg3(PO3)2?
What is 230.859 g/mol.
What is the portion of chemistry dealing with numerical relationships in chemical reactions?
Stoichiometry
How do you convert from grams to moles?
Divide by molar mass.
How many moles are in 98.3 grams of aluminum hydroxide, Al(OH)3
1.26 mol