Intermolecular Forces
What is the strongest Intermolecular force?
Hydrogen Bonding
How many of each atom is in Ba3(PO4)2
3 Ba atoms
2 P atoms
8 O atoms
What are the 5 types of chemical reactions?
1. Conbustion (synthesis)
2. Decomposition
3. Single- replacement reaction
4. Double- replacement reaction
5. Combustion
Which of the following are characterized by Dipole-Dipole forces? F2, CH4, HF, CH3Cl.
HF & CH3Cl.
What is the empirical formula of the following compounds:
(a) P4O10
(b) H2O
(c) N2O4
(d) C10H22
(a) P2H5
(b) H2O
(c) NO2
(d) C5H11
This is an example of what type of chemical reaction: 2H2+O2--->2H2O
Combination ( Synthesis)
What are the requirements for Hydrogen bonding to be able to exist between 2 molecules?
You must have a hydrogen bonded to either an N, O, or an F atom and the other molecule must have an N, O, or F with a lone pair.
Calculate the masses, in grams, of NaCl, CaCl2. Please show all your work!
NaCl= 58.44 g
CaCl2= 111.0 g
What does (aq) mean?
Aqueous (dissolved in water)
Identify the strongest intermolecular force present in pure samples of the following substance: SO2
dipole-dipole forces
Quantitative analysis of calcium chloride reveals that the composition of the compound is 36.04% calcium and 63.96% chlorine. From this data, determine its
empirical formula.
CaCl2
Balance the following chemical equation:
K3PO4 + BaCl2 → Ba3(PO4)2 + KCl
2K3PO4 + 3BaCl2 → Ba3(PO4)2 + 6KCl
Rank the relative strengths based on the most dominant force from strongest to weakest: H2S, O2, CH3OH.
1CH3OH: H-Bonding, dipole-dipole, London
2. H2S: Dipole-dipole, London
3. O2: London
A compound with the empirical formula C2H5 has a molar mass of 58.12 g/mol. Find the molecular formula of the compound
C4H10
Balance the following: Phosphorus pentachloride with liquid water, yielding aqueous solutions of phosphoric acid and hydrochloric acid.
PCl5 + 4H2O → H3PO4 + 5HCl