Chem 105; Ch. 5

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What is the naming of compounds called?
Binomial Nomenclature
When do we use the Greek Prefix system to name compounds?
1. Compound must be binary (can contain only 2 elements)
2. Elements must be nonmetals
What are the first 10 prefixes of the Greek prefix system?
2. di
3. tri
4. tetra
5. penta
6. hexa
7. hepta
8. octa
9. nana
10. deca
When must a prefix always be used?
for the second element
What must the sum of the oxidation of the elements equal?
What comes first in an acid?
What do all bases have at least one of?
OH group
The last word in the naming of all bases is _____.
Classify each compound as ionic or molecular.
A. CO2
B. NiCl2
C. NaI
D. PCl3
A. molecular
B. ionic
C. ionic
D. molecular
Determine the emperical formula for the compound represented my each molecular formula
A. N2O4
B. C5H12
C. C4H10
A. NO2
B. C5H12
C. C2H5
Determine the number of each type of atom in each formula.
A. Mg3(PO4)2
B. BaCl2
C. Fe(NO2)2
D. Ca(OH)2
A. 3 Mg; 2 P; 8 O
B. 1 Ba; 2 Cl
C. 1 Fe; 2 N; 4 O
D. 1 Ca; 2 O; 2 H
Name each ionic compound.
A. Mg3N2
C. Na2O
D. Li2S
E. CsF
A. Magnesium Nitride
B. Potassium Fluoride
C. Sodium Oxide
D. Lithium Sulfide
E. Cesium Fluoride
F. Potassium Iodide
Name each ionic compound.
A. SnO
B. Cr2S3
C. RbI
D. BaBr2
A. Tin (II) Oxide
B. Chromium (III) sulfide
C. Rubidium Iodide
D. Barium Bromide
Name each ionic compound containing a polyatomic ion.
A. cuno2
B. Mg(C2H3O2)2
C. Ba(NO3)2
D. Pb(C2H3O2)2
A. Copper (I) Nitrite
B. Magnesium Acetate
C. Barium Nitrate
D. Lead (II) Acetate
Write the formula for each ionic compound.
A. sodium hydrogen sulfite
B. lithium permanganate
C. silver nitrate
D. potassium sulfate
E. rubidium hydrogen sulfate
F. potassium hydrogen carbonate
B. limno4
C. AgNO3
D. K2SO4
Write the name from the formula or the formula from the name for each hydrated ionic compound.
A. CoSO4 * 7H2O
B. Iridium (III) bromide tetrahydrate
C. Mg(BrO3)2 * 6H2O
D. Potassium carbonate dihydrate
A. Cobalt (II) Sulfate Heptahydrate
B. IrBr3 * 4H2O
C. Magnesium Bromate Hexahydrate
D. K2CO3 * 2H2O
Name each molecular compound.
B. NI3
C. SiCl4
D. N4Se4
A. Carbon monoxide
B. Nitrogen triiodide
C. Silicon tetrachloride
D. Tetranitrogen tetraselenide
Write a formula for each molecular compound.
A. phosphorus trichloride
B. chlorine monoxide
C. disulfur tetrafluoride
D. phosphorus pentafluoride
A. PCl3
B. Cl2O
C. S2F4
D. PF5
Name each compound.
A. SrCl2
B. SnO2
C. P2S5
A. Strontium Chloride
B. Tin (IV) Oxide
C. Diphosphorus pentasulfide
Name each compound.
A. KClO3
B. I2O5
C. PbSO4
A. Potassium Chlorate
B. Diiodine pentaoxide
C. Lead (II) Sulfate
Calculate the formula mass for each compound.
A. NO2
B. C4H10
C. c6h12o6
D. Cr(NO3)3
A. 46.01 amu
B. 58.12 amu
C. 180.16 amu
D. 238.03 amu
Calculate the mass (in g) of each sample.
A. 5.94E20 SO3
B. 2.8E22 H2O
C. C6H12O6
A. .o790 g
B. .84 g
C. 2.992E-22 g
Calculate the mass percent composition of carbon in each carbon-containing compound.
A. CH4
B. C2H6
C. C2H2
D. C2H5Cl
A. 74.9% C
B. 79.9% C
C. 92.3% C
D. 37.2% C
Determine the number of moles of hydrogen atoms contained in each sample.
A. 0.0885 mol C4H10
B. 1.3 mol CH4
C. 2.4 mol C6H12
D. 1.87 mol C8H18
A. 0.885 mol H
B. 5.2 mol H
C. 28.8 mol H
D. 33.7 mol H
A chemist decomposes samples of several compounds; the masses of their constituent elements are shown below. Calculate the empirical formula for each compound.
A. 1.651g Ag, .1224g O
B. .672g Co, .569g As, .486g O
C. 1.443g Se, 5.841g Br
A. Ag2O
B. Co3As2O8
C. SeBr4
The elemental mass percent composition of ibuprofen is 75.69% C, 8.80% H, and 15.51% O. Determine the imperical formula for ibuprofen.
The empirical formula and molar mass of several compounds are listed below. Find the molecular formula of each compound.
A. c6h7N, 186.24 g/mol
B. C2HCl, 181.44 g/mol
C. C5H10NS2, 296.54 g/mol
A. C12H14N2
B. C6H3Cl3
C. C10H20N2S4
Classify each compound as organic or inorganic.
A. CaCO3
C. c4h6o6
D. LiF
A. inorganic
B. organic
C. organic
D. inorganic

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