Problem 3.65b
How many molecules are in each sample? b. 389 g CBr4
Problem 3.91
The elemental mass percent composition of ibuprofen (a nonsteroidal anti-inflammatory drug [NSAID]) is 75.69% C, 8.80% H, and 15.51% O. Determine the empirical formula of ibuprofen.
- Name each ionic compound appropriately: a. BaS b. FeCl3 c. PbI4 d. SrBr2
Problem 4
Problem 5
Write the formula for each molecular compound. a. boron tribromide b. dichlorine monoxide c. xenon tetrafluoride d. carbon tetrabromide
Problem 10
How many atoms are specified by each of these prefixes: mono-, di-, tri-, tetra-, penta-, hexa-?
Problem 23
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
Problem 24a,d
Determine the number of each type of atom in each formula. a. Ca(NO2)2 d. Mg(HCO3)2
Problem 24b,d
Determine the number of each type of atom in each formula. b. CuSO4 d. Mg(HCO3)2
Problem 24c
Determine the number of each type of atom in each formula. c. Al(NO3)3
Problem 26a
Write a chemical formula for each molecular model. (See Appendix IIA for color codes.) (a)
Problem 26c
Write a chemical formula for each molecular model. (See Appendix IIA for color codes.) (c)
Problem 27
Classify each element as atomic or molecular. a. neon b. fluorine c. potassium d. nitrogen
Problem 29
Classify each compound as ionic or molecular. a. CO2 b. NiCl2 c. Nal d. PCl3
Problem 30
Classify each compound as ionic or molecular. a. CF2Cl2 b. CCl4 c. PtO2 d. SO3
- Based on the molecular views, classify each substance as an atomic element, a molecular element, an ionic compound, or a molecular compound.
Problem 31
Problem 31a
Based on the molecular views, classify each substance as an atomic element, a molecular element, an ionic compound, or a molecular compound.
Problem 32
Based on the molecular views, classify each substance as an atomic element, a molecular element, an ionic compound, or a molecular compound.
- Write a formula for the ionic compound that forms between each pair of elements. d. aluminum and oxygen
Problem 33
Problem 34
Write a formula for the ionic compound that forms between each pair of elements. a. silver and chlorine b. sodium and sulfur c. aluminum and sulfur d. potassium and chlorine
- What is the formula for the compound formed between calcium and each of the following polyatomic ions? a. hydroxide b. chromate c. phosphate d. cyanide
Problem 35
Problem 36
Write a formula for the compound that forms between potassium and each polyatomic ion. a. carbonate b. phosphate c. hydrogen phosphate d. acetate
Problem 37a,b,c,d,e,f
Name each ionic compound. a. Mg3N2 b. KF c. Na2O d. Li2S f. KI e. CsF
Problem 38a,b,c,d,e,f
Name each ionic compound. a. SnCl4 b. PbI2 c. Fe2O3 d. CuI2 e. HgBr2 f. CrCl2
- What is the appropriate name for each ionic compound: a. SnO, b. Cr2S3, c. RbI, d. BaBr2?
Problem 39
Problem 41a,b,c,d
Name each ionic compound containing a polyatomic ion. a. CuNO2 b. Mg(C2H3O2)2 c. Ba(NO3)2 d. Pb(C2H3O2)2
Problem 42a,b,c,d
Name each ionic compound containing a polyatomic ion. a. Ba(OH)2 b. NH4I c. NaBrO4 d. Fe(OH)3
Problem 43a,b,c,d,e
Write the formula for each ionic compound. a. sodium hydrogen sulfite b. lithium permanganate c. silver nitrate d. potassium sulfate e. rubidium hydrogen sulfate
Problem 43f
Write the formula for each ionic compound. f. potassium hydrogen carbonate
Problem 44a
Write the formula for each ionic compound. a. copper(II) chloride
Problem 44b,c,e
Write the formula for each ionic compound. b. copper(I) iodate c. lead(II) chromate e. potassium hydroxide
Ch.3 - Molecules, Compounds & Chemical Equations