Miscellaneous
Polyatomic Ions/Molecules
Gases
Geometry
100
How many significant figures are in 0.004560?
4
100
How many H atoms in dihydrogen phosphate?
di = 2
100
What unit is pressure most commonly measured in for gas law problems?
atmospheres (atm)
100
What molecular geometry is shown?
linear
200
What is the molar mass of water? (Include units)
18.02g/mol
200
Which of these is hydroxide:
a. OH-
b. CN-
c. H2O
d. H2
a
200
What are the values at Standard Temperature and Pressure (STP)?
0 degrees celsius, 273.15 K, 1 atm
200
What is the electron geometry of a molecule with 3 electron domains?
trigonal planar
300
How many atoms are in one formula unit of Al₂(SO₄)₃?
17
300
Write the chemical formula of dinitrogen trioxide
N2O5
300
What is 25 degrees celsius in Kelvin?
298.15 K
300
Draw a Lewis Structure for water.
400
What is Avogadro's Number?
6.022 x 1023
400
Name any of the diatomic molecules.
Br2 I2 N2 Cl2 H2 O2 F2
400
What happens to pressure when volume decreases at constant temperature?
Pressure increases
400
A molecule has 2 bonds and 2 lone pairs. What is the electron geometry?
tetrahedral
500
How many moles are in 18.0 g of glucose (C₆H₁₂O₆)
0.100 mol
500
What charge do phosphate and phosphite have?
3-
500
What is the Ideal Gas Law?
PV = nRT
500
Draw a Lewis Structure for CCl4
