1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
SVETLANKA909090 [29]
3 years ago
10

) A vehicle owner fuels his/her car with pure octane. What quantity of CO2 (in kg) goes into our atmosphere in one year of their

automobile use? (This person spends $1500 per year on gasoline, and that gas costs $3.00 per gallon) Show your work. 1 gallon of gas weighs 6 pounds. 1 kg is 2.2 pounds.
Chemistry
2 answers:
vodomira [7]3 years ago
7 0
I’ll send someone to come and help you
jekas [21]3 years ago
6 0

Money spent on fuel in 1 year is $1500, the cost of fuel is $3.00 per gallon. Thus, gallon of fuel used in 1 year can be calculated as follows:

$3 =1 gallon

$1=\frac{1}{3}gallons

Thus, $1500=\frac{1500}{3}gallons=500 gallons

converting this into m^{3}

1 gallon=0.0037 m^{3}

Thus,

500 gallons=1.8927 m^{3}

The fuel used is pure octane, the density of octane is 703 kg/m^{3} thus, mass of octane used can be calculated as follows:

m=d×V=703 kg/m^{3}×1.8927 m^{3}=1.33\times 10^{3} kg or 1.33\times 10^{6} g

Now, molar mass of octane is 114.23 g/mol

converting mass into number of moles as follows:

n=\frac{m}{M}=\frac{1.33\times 10^{6}g}{114.23 g/mol}=1.167\times 10^{4}mol

The reaction for combustion of octane is as follows:

2C_{8}H_{18}+25O_{2}\rightarrow 16CO_{2}+18H_{2}O

From the balanced reaction, 2 moles of octane gives 16 moles of CO_{2} thus, 1 mole of octane will give \frac{16}{2}=8 moles of CO_{2}.

1.167\times 10^{4}mol of octane =8\times 1.167\times 10^{4}mol=9.34\times 10^{4} mol of CO_{2}.

Now, molar mass of CO_{2} is 44.01 g/mol, mass can be calculated as follows:

m=n×M=9.34\times 10^{4} mol ×44.01 g/mol=4.11×10^{6} g.

converting into kg, mass of CO_{2} produced will be 4.11×10^{3} kg.

Thus, quantity of CO_{2} goes into our atmosphere in 1 year is 4.11×10^{3} kg.

You might be interested in
6) Determine la concentración de una solución que ha sido preparada añadiendo 80cc de agua a 320cc de solución alcohólica al 20%
Xelga [282]

Answer:

16% v/v es la nueva concentración de alcohol en la solución

Explanation:

El porcentaje volumen/volumen (% v/v) es definido como 100 veces la relación entre el volumen de soluto (Alcohol en este caso) y el volumen total de la solución (Agua + Alcohol). Para resolver esta pregunta necesitamos hallar el volumen de alcohol y el de agua:

<em>Volumen alcohol:</em>

320cc * (20cc etanol / 100cc) = 64cc etanol

<em>Volumen agua:</em>

80cc + (320cc-64cc) = 336cc agua

<em>% v/v:</em>

64cc / (336cc + 64cc) * 100

= 16% v/v es la nueva concentración de alcohol en la solución

3 0
3 years ago
What organisims allowed for the build up of oxygen in the atmosphere?
Maru [420]

Answer:

The answer is tiny organisms known as cyanobacteria, or blue-green algae. These microbes conduct photosynthesis: using sunshine, water and carbon dioxide to produce carbohydrates and, yes, oxygen.

:-))

5 0
3 years ago
Read 2 more answers
Which uses of iron are due to its chemical properties? Select two options.
kondaur [170]

Answer:

producing colored sparks in fireworks and rusting in the presence of water and oxygen

Explanation:

yeet

5 0
3 years ago
Read 2 more answers
GOOD MORNING GUYS☕☕☕☕​
Vinvika [58]

Answer:

GOOD MORNING DIDI be happy

8 0
2 years ago
Read 2 more answers
CHEMISTRY HELP PLEASE!
WINSTONCH [101]
1) is called 3-methyl hexane because we choose the longest possible continuous chain which has 6 carbons and start numbering from the side that gives the branch lowest possible number.

2) is called 2-methyl-2-butene because we have to give the double bond lowest possible number but in this case double bond in position 2 from both sides so we start from the side gives the branch number 2 not 3

3)  is called 7-Ethyl-4-decyne because we have to start from the side that gives the triple bond lowest possible number which is 4 and the branch will be at position 7 (note that the name of 10 carbon is incorrectly written in the choices is called decane (as alkane) or decyne when contains triple bond)

4) is called 2,3-Dimethyl pentane because it is 5 carbons (pentane) and we have two branches of the same alkyl (dimethyl) in positions 2 and 3

5) is called 1-Butanol because it contains 4 carbons and has one OH as functional group which take the suffix -ol in position 1 so we said the name as 1-butanol (remember to give the functional group lowest possible number)

6) is called propyl butyl ether because the longest chain is 4 carbons which called butyl and the smallest chain is propyl, it also has another name 1-Propoxy butane <span />
7 0
3 years ago
Read 2 more answers
Other questions:
  • Explain oxidation and reduction occur simultaneously​
    9·2 answers
  • The number of hydrogen ions would equal the number of hydroxide ions in a solution with a pH of what?
    10·1 answer
  • I need to clean the Kwik Switch thermometer between<br>each measurement.<br>O<br>True<br>False<br>​
    8·2 answers
  • Why do atmoic numbers increase from left to right across any given row of the periodic table
    14·1 answer
  • The combustion of Methane produces energy. Where does this energy come from
    13·2 answers
  • What is ΔG° at 298 K for the following equilibrium? Ag+(aq) + 2NH3(aq) Ag(NH3)2+(aq); Kf = 1.7 × 107 at 298 K a. 41 kJ b. 0 c. –
    11·2 answers
  • In an experiment, mixing baking soda and vinegar produced a combination of salty water and carbon dioxide shown in the following
    13·2 answers
  • Two people are pushing a broken down car (out of gas). One exerts a force of 200 N to the east and the other exerts a force of 1
    15·1 answer
  • The barium ion Ba2+ combines with the phosphate ion PO43- to form an ionic compound. Which is the formula for that compound?
    5·1 answer
  • How many hydrogen atoms are present in a hydrocarbon chain of 8 carbon atoms with 3 double bonds and the rest single bonds
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!