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# Structural Formula Problems

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Assistance with questions

Select the correct structural formula for 4-ethyl1-1,5heptadiene
A). ch2=ch-ch2-ch ch=ch-ch3
Ch3
B) ch3=ch-ch2-ch-ch=ch-ch3
C2h5
c) ch2=ch-ch2-ch=ch-ch2-ch3
c2h5
2 structural formula for 1,1,3-triethylcyclohexane

3 structural formula for 3-methylpentane
ch3
4 what is the correct chemical name for ch3ch2ch2c ch3
Ch3
5. How many significant digits are there in 600.0 miles
a.1
b3
c4
d2
6. how many significant digits in 0.00060700cm3
A5
B3
C6
D8
7. calculate (1.1x10^2)(2.2x10^-8)(4.6 x10^-8)
A 3.67 x10^-7
B 3.67x10^21
C 3.67x10^11
D 3.67x10^1

8. Calculate (2.2x10^-5)(2.4x10^-7)
(6.2X10^-12)(1.05x10^-6)
A 8.94x10^-7
B 4.47x10^5
C 8.11x10^-7
D 8.11x10^5

9. (2.45)(4.3)^6(3.9)
a. 1.22x10^1
b, 4.81x10^9
c2.64x10^2
d 6.04x10^4

10. covert 5.36 pm to cm
a. 5.36x10^10cm
b5.36x10^-9cm
c5.36x10^-10cm
d5.36x10^4cm

11. convert 245 m3 to cm3
A 2.45x10^2cm3
B2.45x10^8cm3
C2.45x10^-6cm3
D 2.45x10^6cm3

12 convert 1.47 km/h/to mm/s
a. 5.29x10^9mm/s
b. 4.08x10^2mm/s
c. 5.29x10^-3mm/s
d. 4.08x10^-10mm/s

13 If your heart beats 1.2 beats per second how many times will it beat during 4 hours
A 1.73x10^4 heartbeats
B 4.8 heartbeats
C 1.2x10^4 heartbeats
D1.33x10^-3 heartbeats

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https://brainmass.com/chemistry/bonding/structural-formula-problems-288774

#### Solution Preview

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Select the correct structural formula for 4-ethyl1-1,5heptadiene
A). ch2=ch-ch2-ch ch=ch-ch3
Ch3
B) ch3=ch-ch2-ch-ch=ch-ch3
C2h5
c) ch2=ch-ch2-ch=ch-ch2-ch3
c2h5
Heptadiene has seven carbons in its longest chain. All of the formulas match this. There will be double bonds at the 1 and 5 carbon. Only compounds A and B match this. 4-ethyl means there is an ethyl group at the fourth carbon. This is compound B.

2 structural formula for 1,1,3-triethylcyclohexane

The base is cyclohexane, a ring with 6 carbons. There will be ethyl groups (2 carbons) on the 1st, 1st, and 3rd carbons:

3 structural formula for 3-methylpentane
Pentane has 5 carbons. 3-methyl means there is a methyl group (CH3) on the 3rd carbon:

...

#### Solution Summary

This solution explains how to solve a variety of structural formula problems.

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