Petroleum Quiz 1 Review Quiz

A sample has a mass of 15 g and a volume of 62 mL. What is the sample’s density?

0.24 g/mL

4.133 g/mL

24.2 g/mL

19.4 g/mL

Question 1 of 9

2. How many valence electrons does nitrogen have?

Question 2 of 9

3. How many bonds does C want?

1 bond

2 bonds

3 bonds

4 bonds

8 bonds

Question 3 of 9

4. What is the pattern between the number of carbon and hydrogen atoms in alkane molecular formulas?

C_nH_2n

C_2nH_2n+2

C_nH_2n+2

C_nH_n+2

Question 4 of 9

5. Find the molecular formula for an alkane with 762 carbon atoms.

C₇₆₂H₁₅₂₆

C₇₆₂H₁₅₂₄

C₇₆₂H₁₅₂₂

C₇₆₂H₂₂₈₆

Question 5 of 9

6. Which structure is an isomer of straight chain hexane?

$\definesubmol{c}{-[,.6]C(-[::+90])(-[::-90])} \chemfig{[,.4]-C(-[2])(-[6])!c([6]!c-)!c!c!c-}$

$\definesubmol{c}{-[,.6]C(-[::+90])(-[::-90])} \chemfig{[,.4]-C(-[2])(-[6])!c!c!c!c([6]!c-)-}$

$\chemfig{[,.4]-C(-[2])(-[6])(-[0])-[6,.6]C(-[:22.5])(-[:202.5])-[7,.6]C(-[:67.5])(-[:247.5])-[,.6]C(-[:112.5])(-[:292.5])-[1,.6]C(-[:157.5])(-[:337.5])-[2,.6]C(-[0])(-[2])(-[4])}$

$\definesubmol{c}{-[,.6]C(-[::+90])(-[::-90])} \chemfig{[,.4]-C(-[2])(-[6])!c!c!c!c([2]!c-)-}$

Question 6 of 9

7. What is petroleum?

oil, coal, natural gas

study of carbon compounds

compounds that make up all living things

products made from oil such as plastic and synthetic fabrics

Question 7 of 9

8. Based on our viscosity lab, an alkane with higher viscosity will also have higher ________. (check all that apply)

boiling point

intermolecular forces

number of carbons

density

Question 8 of 9

9. In a distillation tower, the (smallest / largest) molecules exit the bottom of the tower, because they are (easier / harder) to boil.

Question 9 of 9