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WorksheetsChemical Bonds pt 2
Total questions: 20
Worksheet time: 24mins
It is the mass of the atoms in atomic mass units (amu)
Atomic Mass
Formula Mass
Molecular Mass
Molar mass
The sum of the atomic masses of the atoms in a molecule in atomic mass units (amu)
Atomic Mass
Formula Mass
Molecular Mass
Molar mass
The sum of the atomic masses of the atoms in an ionic compound in atomic mass units (amu)
Atomic Mass
Formula Mass
Molecular Mass
Molar mass
The mass of 1 mole of atoms, molecules, or formula units in grams per mole (g/mol).
Atomic Mass
Formula Mass
Molecular Mass
Molar mass
One mole of any entity (particles, atoms, molecules, or formula units) is equal to _________ (particles, atoms, molecules, or formula units).
2.9989X10^8
6.626x10^-34
6.022x10^23
1.01x10^5
An element has the following natural abundances and isotopic masses: 90.92% abundance with 19.99 amu, 0.26% abundance with 20.99 amu, and 8.82% abundance with 21.99 amu. Calculate the average atomic mass of this element.
2008 amu
2017 amu
20.08 amu
20.17 amu
A 10.00 g sample of a compound containing only carbon, hydrogen, and oxygen forms 23.98 g CO2 and 4.91 g H2O upon complete combustion. What is the empirical formula of the compound?
C2HO
C3H3O
C6H3O2
C6H6O
How many H atoms are there in 3.00 grams of H2?
8.96x1024
1.79x1024
3.58x1024
8.96x1023
How many grams does 6.022x1024 molecules of CO2 weigh?
24.01 grams
44.01 grams
12.01 grams
32.00 grams
How many grams of H atoms are there in 18.02 grams of water?
1.008 grams
3.024 grams
2.016 grams
4.032 grams
How many H atoms are there in 72.5 g of C3H8O?
5.82x1024
5.82x1023
5.82x1025
5.82x1026
What is the formula mass of CaCl2?
110.98 g/mol
110.98 amu
75.53 amu
75.53 g/mol
Chlorine has two isotopes. Chlorine-35 has an actual mass of 34.9689 amu and chlorine-37 has a mass of 36.9659 amu. In any sample of chlorine atoms, 75.771% will be chlorine-35 and 24.229% will be chlorine 37. Calculate the average atomic mass of chlorine.
36.48 g/mol
36.48 amu
35.45 g/mol
35.45 amu
What is the molar mass of calcium carbonate?
140.17 g/mol
100.09 g/mol
140.17 amu
100.09 amu
A complete combustion reaction yields which of the following products?
Carbon dioxide and oxygen gas
Carbon dioxide and water
Oxygen gas and water
Water and Smoke
What is/are the intermolecular forces of attraction (IMFA) present in the HCl molecules?
dispersion forces
ion-dipole, dispersion forces
hydrogen bonds, dispersion forces
dipole-dipole, dispersion forces
What is the primary intermolecular forces of attraction (IMFA) present in the DNA?
ion-dipole
hydrogen bonds
dipole-dipole
dispersion forces
Arrange the following molecules in terms of increasing melting point:
HF, HCl, HBr, HI
HF < HCl < HI < HBr
HF < HCl < HBr < HI
HI < HBr < HCl < HF
HCl = HF < HBr < HI
What is the strongest intermolecular force of attraction?
dispersion forces
Hydrogen bonds
dipole-dipole interactions
ion-dipole interactions
Which of the following is NOT an intermolecular force of attaction?
London dispersion forces
Hydrogen bonds
Covalent bonds
ion-dipole interactions
