Question 1

The molar mass of nicotine C10H14Nx is 162 g/mol. What is the value of x?

Accepted Answer

2

Question 2

Which of the following is not an ionic compound?

Accepted Answer

A)  MgCl2 
B)  NaOH 
C)  NaF 
D)  FCl3 
E)  CaO 
A)  MgCl2 
B)  NaOH 
C)  NaF 
D)  FCl3 
E)  CaO D

Question 3

Determine the percent platinum in cisplatin, PtCl2(NH3)2.

Accepted Answer

A)  0.650% 
B)  78.9% 
C)  58.5% 
D)  65.0% 
E)  23.6% 
A)  0.650% 
B)  78.9% 
C)  58.5% 
D)  65.0% 
E)  23.6% D

Question 4

Which compound is incorrectly named?

Accepted Answer

A)  NaF sodium fluoride 
B)  MgBr2 magnesium bromide 
C)  CaO calcium oxide 
D)  CuO copper(II) oxide 
E)  TiCl4 titanium tetrachloride 
A)  NaF sodium fluoride 
B)  MgBr2 magnesium bromide 
C)  CaO calcium oxide 
D)  CuO copper(II) oxide 
E)  TiCl4 titanium tetrachloride

Question 5

An organic compound contains 49.3% carbon, 6.9% hydrogen and the remainder oxygen. Determine the empirical formula of the compound.

Accepted Answer

A)  CH2O 
B)  C3H2O 
C)  C3H5O 
D)  C3H5O2 
E)  C6H10O5 
A)  CH2O 
B)  C3H2O 
C)  C3H5O 
D)  C3H5O2 
E)  C6H10O5

Question 6

Which statement about constitutional isomers is true?

Accepted Answer

A)  Constitutional isomers have the same physical properties. 
B)  Constitutional isomers always contain identical covalent bonding patterns. 
C)  Constitutional isomers have the same molecular formulas. 
D)  Constitutional isomers have the same chemical properties. 
E)  Constitutional isomers only occur among straight chain compounds. 
A)  Constitutional isomers have the same physical properties. 
B)  Constitutional isomers always contain identical covalent bonding patterns. 
C)  Constitutional isomers have the same molecular formulas. 
D)  Constitutional isomers have the same chemical properties. 
E)  Constitutional isomers only occur among straight chain compounds.

Question 7

Which of the following elements is classified as a trace element in the human body?

Accepted Answer

A)  mercury 
B)  cesium 
C)  gallium 
D)  arsenic 
E)  None of these. 
A)  mercury 
B)  cesium 
C)  gallium 
D)  arsenic 
E)  None of these.

Question 8

Select the molecular formula for a compound that contains 10 carbon atoms, 24 hydrogen atoms, 1 nitrogen atoms, 3 oxygen atoms and 1 sulfur atom.

Accepted Answer

A)  Ca10Hy24NiOx3Su 
B)  C10H24NO3Sn 
C)  Cu10H24NO3S 
D)  C10H24NO3S 
E)  Ca10H24NO3Se 
A)  Ca10Hy24NiOx3Su 
B)  C10H24NO3Sn 
C)  Cu10H24NO3S 
D)  C10H24NO3S 
E)  Ca10H24NO3Se

Question 9

Find the correct combination of protons and electrons below for the fluoride ion.

Accepted Answer

A)  9 protons and 8 electrons 
B)  9 protons and 9 electrons 
C)  9 protons and 10 electrons 
D)  19 protons and 18 electrons 
E)  19 protons and 20 electrons 
A)  9 protons and 8 electrons 
B)  9 protons and 9 electrons 
C)  9 protons and 10 electrons 
D)  19 protons and 18 electrons 
E)  19 protons and 20 electrons

Question 10

Which statement concerning ionic compounds is incorrect?

Accepted Answer

A)  Ionic compounds consist of anions and cations in a crystal lattice. 
B)  Ionic compounds conduct electricity poorly as a solid. 
C)  Ionic compounds produce aqueous ions when dissolved in water. 
D)  Ionic compounds have a high boiling point. 
E)  Ionic compounds conduct electricity poorly when molten. 
A)  Ionic compounds consist of anions and cations in a crystal lattice. 
B)  Ionic compounds conduct electricity poorly as a solid. 
C)  Ionic compounds produce aqueous ions when dissolved in water. 
D)  Ionic compounds have a high boiling point. 
E)  Ionic compounds conduct electricity poorly when molten.

Question 11

Which of the elements listed below is least abundant in the human body?

Accepted Answer

A)  hydrogen 
B)  nitrogen 
C)  iron 
D)  oxygen 
E)  carbon 
A)  hydrogen 
B)  nitrogen 
C)  iron 
D)  oxygen 
E)  carbon

Question 12

Which combination below corresponds to an anion with a -1 charge?

Accepted Answer

A)  16 protons and 18 electrons 
B)  17 protons and 18 electrons 
C)  18 protons and 17 electrons 
D)  18 protons and 18 electrons 
E)  19 protons and 18 electrons 
A)  16 protons and 18 electrons 
B)  17 protons and 18 electrons 
C)  18 protons and 17 electrons 
D)  18 protons and 18 electrons 
E)  19 protons and 18 electrons

Question 13

Which of the following is not an ionic compound?

Accepted Answer

A)  TiCl4 
B)  MgO 
C)  CH4 
D)  Na2S 
E)  LiF 
A)  TiCl4 
B)  MgO 
C)  CH4 
D)  Na2S 
E)  LiF

Question 14

_____________ containing compounds are known as organic compounds.

Accepted Answer

The answer of _____________ containing compounds are known as organic...

Question 15

Determine the number of molecules in 325 mg of aspirin, C9H8O4.

Accepted Answer

A)  1.81 × 10-3 
B)  1.09 × 1021 
C)  3.34 × 1023 
D)  1.09 × 1024 
E)  3.34 × 1026 
A)  1.81 × 10-3 
B)  1.09 × 1021 
C)  3.34 × 1023 
D)  1.09 × 1024 
E)  3.34 × 1026

Question 16

Determine the number of molecules in a drop of water that has a mass of 0.050 g.

Accepted Answer

A)  6.50 × 1026 molecules 
B)  5.02 × 1021 molecules 
C)  5.42 × 1023 molecules 
D)  2.17 × 1026 molecules 
E)  1.67 × 1021 molecules 
A)  6.50 × 1026 molecules 
B)  5.02 × 1021 molecules 
C)  5.42 × 1023 molecules 
D)  2.17 × 1026 molecules 
E)  1.67 × 1021 molecules

Question 17

Give the formula for an alkane containing five carbon atoms.

Accepted Answer

The answer of Give the formula for an alkane containing...

Question 18

How many grams of sugar, C12H22O11, are present in 0.500 moles of sugar?

Accepted Answer

A)  1.46 × 10-3 g 
B)  0.500 g 
C)  171 g 
D)  6.84 × 103 g 
E)  3240 g 
A)  1.46 × 10-3 g 
B)  0.500 g 
C)  171 g 
D)  6.84 × 103 g 
E)  3240 g

Question 19

Which compound is not a hydrocarbon?

Accepted Answer

A)  C2H6 
B)  C2H2 
C)  C6H14 
D)  CH4 
E)  CH3OH 
A)  C2H6 
B)  C2H2 
C)  C6H14 
D)  CH4 
E)  CH3OH

Question 20

The molar mass of calcium hydroxide, Ca(OH)2 is _____________.

Accepted Answer

The molar mass of nicotine C₁₀H₁₄N_x is 162 g/mol. What is the value of x?

Which of the following is not an ionic compound?

Determine the percent platinum in cisplatin, PtCl₂(NH₃)₂.

Which compound is incorrectly named?

An organic compound contains 49.3% carbon, 6.9% hydrogen and the remainder oxygen. Determine the empirical formula of the compound.

Which statement about constitutional isomers is true?

Which of the following elements is classified as a trace element in the human body?

Select the molecular formula for a compound that contains 10 carbon atoms, 24 hydrogen atoms, 1 nitrogen atoms, 3 oxygen atoms and 1 sulfur atom.

Find the correct combination of protons and electrons below for the fluoride ion.

Which statement concerning ionic compounds is incorrect?

Which of the elements listed below is least abundant in the human body?

Which combination below corresponds to an anion with a -1 charge?

Which of the following is not an ionic compound?

_____________ containing compounds are known as organic compounds.

Determine the number of molecules in 325 mg of aspirin, C₉H₈O₄.

Determine the number of molecules in a drop of water that has a mass of 0.050 g.

Give the formula for an alkane containing five carbon atoms.

How many grams of sugar, C₁₂H₂₂O₁₁, are present in 0.500 moles of sugar?

Which compound is not a hydrocarbon?

The molar mass of calcium hydroxide, Ca(OH)₂ is _____________.

The Nature of Chemistry

Atoms and Elements

Quantities of Reactants and Products

Chemical Reactions

Energy and Chemical Reactions

Electron Configurations and the Periodic Table

Covalent Bonding

Molecular Structure

Gases and the Atmosphere

Liquids, Solids, and Materials

Chemical Kinetics: Rates of Reactions

Chemical Equilibrium

The Chemistry of Solutes and Solutions

Acids and Bases

Additional Aqueous Equilibria

Thermodynamics: Directionality of Chemical Reactions

Electrochemistry and Its Applications

Nuclear Chemistry

Filters

Exam 3: Chemical Compounds

The molar mass of nicotine C10H14Nx is 162 g/mol. What is the value of x?

Which of the following is not an ionic compound?

Determine the percent platinum in cisplatin, PtCl2(NH3)2.

Which compound is incorrectly named?

An organic compound contains 49.3% carbon, 6.9% hydrogen and the remainder oxygen. Determine the empirical formula of the compound.

Which statement about constitutional isomers is true?

Which of the following elements is classified as a trace element in the human body?

Select the molecular formula for a compound that contains 10 carbon atoms, 24 hydrogen atoms, 1 nitrogen atoms, 3 oxygen atoms and 1 sulfur atom.

Find the correct combination of protons and electrons below for the fluoride ion.

Which statement concerning ionic compounds is incorrect?

Which of the elements listed below is least abundant in the human body?

Which combination below corresponds to an anion with a -1 charge?

Which of the following is not an ionic compound?

_____________ containing compounds are known as organic compounds.

Determine the number of molecules in 325 mg of aspirin, C9H8O4.

Determine the number of molecules in a drop of water that has a mass of 0.050 g.

Give the formula for an alkane containing five carbon atoms.

How many grams of sugar, C12H22O11, are present in 0.500 moles of sugar?

Which compound is not a hydrocarbon?

The molar mass of calcium hydroxide, Ca(OH)2 is _____________.

The Nature of Chemistry

Atoms and Elements

Quantities of Reactants and Products

Chemical Reactions

Energy and Chemical Reactions

Electron Configurations and the Periodic Table

Covalent Bonding

Molecular Structure

Gases and the Atmosphere

Liquids, Solids, and Materials

Chemical Kinetics: Rates of Reactions

Chemical Equilibrium

The Chemistry of Solutes and Solutions

Acids and Bases

Additional Aqueous Equilibria

Thermodynamics: Directionality of Chemical Reactions

Electrochemistry and Its Applications

Nuclear Chemistry

Filters

The molar mass of nicotine C₁₀H₁₄N_x is 162 g/mol. What is the value of x?

Determine the percent platinum in cisplatin, PtCl₂(NH₃)₂.

Determine the number of molecules in 325 mg of aspirin, C₉H₈O₄.

How many grams of sugar, C₁₂H₂₂O₁₁, are present in 0.500 moles of sugar?

The molar mass of calcium hydroxide, Ca(OH)₂ is _____________.