Mole Review I (Moles, Particles, Mass, Liters) Question Preview (ID: 41290)


Mole Review For The First Mole Quiz. TEACHERS: click here for quick copy question ID numbers.

Calculate the Molar Mass of H3PO4
a) 47.98 g/mol
b) 100 g/mol
c) 98.00 g/mol
d) 48 g/mol

How many moles are in 25.2 grams of Mg?
a) 1.04 moles of Mg
b) 1.03 moles of Mg
c) 612.36 moles of Mg
d) 4.18 x 10^-23 moles of Mg

How many atoms are there in 56 moles of Silver?
a) 4 x 10^25 atoms of Ag
b) 3.9 x 10^25 atoms of Ag
c) 9.3 x 10^-23 atoms of Ag
d) 4 atoms

What is the molar mass of (NH4)3C2O4
a) 124.12 amu
b) 106.07 g/mol
c) 124.12 g
d) 46.06 mol

How many particles are in 5.00 moles of NaCl
a) 3 x 10^24 particles of NaCl
b) 8.3 x 10^-24 atoms of NaCl
c) 3.01 x 10^24 molecules of NaCl
d) 3.01 x 10^24 formulas units of NaCl

How many moles are in 22.4 Liter of Hydrogen gas?
a) 44.8 moles of H2
b) 3.72 x 10^23 moles of H2
c) 1.00 moles of H2
d) 22.4 moles of H2

How many grams of calcium are there if you have 1.05 x 10^22 atoms?
a) 0.699 g of Ca
b) 0.0174 g of Ca
c) 0.7 grams of C
d) 1.05 x 10^22 grams of Ca

What is the mass of 0.780 mol Ca(CN)2
a) 4.70 x 10^23 mass
b) 70 grams of Ca(CN)2
c) 71.9 grams of Ca(CN)2
d) 92.12 grams

How many oxygen molecules are in 3.36 L of oxygen gas at STP
a) 5.58 x 10^-24 molecules of O2
b) 9.02 x 10^23 molecules of O2
c) 6 x 10^-23 molecules of O2
d) 9.02 x 10^22 molecules of O2

How many atoms are in 17.1 grams of potassium?
a) 3 x 10^23 atoms of K
b) 2.63 x 10^23 atoms of K
c) 2.84 x 10^-23 atom of K
d) 0.437 atoms of K

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