Chemistry Semester 2 Test 3 Mini Test
What is the mass of 1.22 x 10²⁰ atoms of Si?
0.006 g
How many moles are in 1.62 grams of glucose (C₆H₁₂O₆)?
0.009 mol
What is the mass of 5.00 x 10²⁰ atoms of Cr?
0.043 g
How many moles are in 2.54 grams of NaCl?
0.043 mol
If you have 12.0 grams of NaCl, how many moles do you have?
0.206 mol
If you have 42.1 grams of CuSO4, how many moles do you have?
0.264 mol
If you have 20.5 grams of LiCl, how many moles do you have?
0.485_mol
What is the mass, in grams, of one mole of: Sodium Chloride (NaCl)
58.443 g
If you have 76.5 grams of KNO3, how many moles do you have?
0.757 mol
How many molecules are in: one mole of water (H2O)
6.02 x 10²³ molecules
How many atoms are in: 10 moles of oxyegn
6.02 x 10²⁴ atoms
1 mole of a substance is equal to _________ particles (atoms, ions, molecules, etc.) of that substance.
6.02x10²³
How many atoms are in: one mole of carbon
6.02x10²³ atoms
How many atoms are in a 72.3 gram bag of calcium (Ca)?
6.07 x 10²⁴ atoms
What is the mass, in grams, of one mole of: Hydrogen
1.01 g
How many atoms are in a 5 gram bag of aluminum?
1.128 x 10²³1 atoms
What is the mass of 1.20x10⁸ atoms Cu?
1.27 x 10-¹⁴ g
What is the mass, in grams, of one mole of: Glucose (C₆H₁₂O₆)
180 g
What is the mass, in grams, of one mole of: Gold (Au)
196.967 g
What is the mass, in grams, of one mole of: Neon (Ne)
20.180 g0
What is the mass, in grams, of one mole of: Sodium (Na)
22.99 g
What is the mass, in grams, of one mole of: Aluminum (Al)
26.982 g
What is the relationship between Carbon-12 and Avogadro's number?
One mole of Carbon-12 is equal to 6.02 x 10²³ atoms of Carbon, which is also Avogadro's number.
What is the abbreviation for "mole" in chemistry?
mol
How many atoms are in a 6.2 gram bag of gold (Au)?
1.89 x 10²² atoms
What is the mass, in grams, of one mole of: Calcium Chloride (CaCl₂)
110.8 g
How many atoms are in: 20 moles of sodium
12.04 x 10²⁴ atoms or 1.20 x 10²⁵ atoms
How many grams are in 4 moles of helium?
16 g
What is the molar mass of: Methane (CH₄)
16.04 g/mol
How many atoms are in: 5 moles of hydrogen
30.10x10²³ atoms or 3.01 x 10²⁴ atoms
How many atoms are in: 50 moles of calcium
31.0 x 10²⁴ atoms or 3.01 x 10²⁵ atoms
How many molecules are in: 6 moles of carbon dioxide (CO2)
36.012 x 10²³ molecules or 3.601 x 10²⁴ molecules
What is the molar mass of: Lithium chloride (LiCl)
42.39 g/mol
What is the mass, in grams, of one mole of: Hydroxyapatite (makes bones & tooth enamel) Ca5(PO4)3(OH)
422.01 g
What is the mass, in grams, of one mole of: Carbon Dioxide (CO₂)
44 g
How many atoms are in a 12.4 gram bag of nitrogen?
5.3 x 10²⁴³ atoms (ask her)
What is the molar mass of: Sulfur dioxide (SO₂)
64 g/mol
How many molecules are in: 12 moles of the amino acid glycine (C2H4O2N3):
7.22 x 10²⁴ molecules
What is the molar mass of: Iron oxide (FeO₂)
87.8 g/mol
What is the mass of 2.23 x 10²³ atoms of Al?
9.99 g
Study Reference page of Conversion wkst
Study Refrence page of Conversion wkst
that the mass (in grams) of 1 mole of a substance is equal to the sum of the ____________in a single molecule of that substance (or if it is just one element, the average atomic mass of that element). Know that it's also defined as the ________ of a substance.
sum of the average atomic mass. Molar mass