molar conversion
how many moles are present in 55.1 g MgCl2?
.579 mol MgCl2
what is the molar mass in g of 1 mole of Cl?
35.45 g
a mole is equivalent to ____________ atomic mass units
6.02 X 10^23
How many grams are in 2.4 moles of S?
77 g
what is the molecular weight of H2O2?
law of conservation of mass:
Mass is not created nor destroyed, it is only rearranged
how many moles are in 15 g of Li?
2.2 moles
what is the molecular weight of NH3?
17.02 g/mol
define molecular weight
sum of atomic weights of all atoms in a molecule
how many grams are in 4.5 moles of Sodium Fluoride?
190 g?
what is the molecular mass of nitrate?
62.004 g/mol
T or F: molecular weight and formula weight are the same thing
TRUE
how many moles are 98.3 g of Aluminum hydroxide Al(OH)3?
1.26 moles
what is the molecular mass of calcium bicarbonate?
162.11 g/mol
BONUS QUESTION FROM NEXT WEEK: When balancing equations, do you change the proportion or the coefficient?
Coefficient