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
ohaa [14]
4 years ago
9

A major component of gasoline is octane (C8H18). When octane is burned in air, it chemically reacts with oxygen gas (O2) to prod

uce carbon dioxide (CO2)and water (H2O). What mass of octane is consumed by the reaction of 1.2 g of oxygen gas?
Physics
1 answer:
stira [4]4 years ago
4 0

Answer:

0.342g of octane

Explanation:

First let us generate a balanced equation for the reaction this is illustrated below:

2C8H18 + 25O2 —> 16CO2 + 18H20

Next, we'll calculate the molar mass and masses of C8H18 and O2

Molar Mass of C8H18 = (12x8) + (18x1 ) = 96 + 18 = 114g/mol

Mass of C8H18 from the balanced equation = 2 x 114 = 228g

Molar Mass of O2 = 16 x 2 = 32g/mol

Mass of O2 from the balanced equation = 25 x 32 = 800g

From the equation,

228g of octane(C8H18) were consumed by 800g of O2.

Therefore, Xg of octane will be consumed by 1.2g of O2 i.e

Xg of octane = (228 x 1.2)/800 = 0.342g

Therefore 0.342g of octane will be consumed

You might be interested in
During the time that the blocks are in contact, describe whether the center of mass of the two-block system is speeding up, slow
iVinArrow [24]

Answer:

The center of mass of the two-block system is staying the same and it can be explained with the help of linear momentum equation.

Explanation:

The center of mass of the two-block system is staying the same and it can be explained with the help of linear momentum equation.

Equation:

P=mv

This equation holds if no external force is acting on the system it means the momentum of the system is constant.

In our case, there is no external force which means the total momentum of system is constant:

P=constant

Total mass of system is also constant:

m=constant

It means the velocity of the system is constant (from above equation) thus center of mass of the two-block system is staying the same

3 0
3 years ago
A charged particle decelerates as it moves from location a to location b. if va = 160 v and vb = 100 v, what is the sign of the
skelet666 [1.2K]

The sign of the charged particle is positively charged.

<h3>What is potential difference?</h3>
  • When a single charge is transported in an electric field, work is done by the potential difference (also known as electrical potential).
  • There is potential energy stored in this charge that could flow when work is done on it.
  • Voltage is the possibility of a single charge flowing. The need to flow increases with voltage.
  • Here, voltage can be the potential differences.

The potential difference between the 2 points determines the movement of that particle. An electron moves from lower to higher potential which is negatively charged, and a positively charged particle moves  from higher to lower potential.

Now, since the particle is moving from a point A having 160 v potential to point B having 100 v potential that is it is moving from higher potential to a lower potential therefore the particle will be a positively charged one.

Learn more about potential difference,

brainly.com/question/23716417

#SPJ1

3 0
2 years ago
What would happen if the amount of light reaching the Earth from the sun were cut in half? Predict what the climate and life wou
kicyunya [14]
A lot would happen depends on which perspective you look at it from. Less incoming solar radiation means that there is a greater possibility of the surface temperature of earth reducing. there would be a cooling effect. And it could be major cooling in certain part of the world depending on milankovitch cycles. We know that the amount of light or solar radiation that reaches the earth is unequal in different parts of the world because of the obliquity, eccentricity, and precession of the earth. But, in general you would most likely see a cooling trend around the world and in some parts it would be extreme. In Canada or in the North is general, winters would become even more cooler or colder... winters would become longer perhaps, And summers would 've cooler. on the contrary to what most believe, you would most likely see a decline in precipitation such as snow or rain because this is mostly caused or intensified by warming temperatures. Life would be probably very similar to that of the Pleistocene epoch. how would humans respond to this change... Well most likely they would try to use their tech to control weather because they already do to a smaller proportion.

hope that helps a bit! :)
5 0
3 years ago
Activity 3: Under Pressure&lt;br /&gt;&lt;br /&gt;Q.7 What did you observe in each bottle&lt;br /&gt;Q.8 Explain your observatio
valina [46]

Q7. A fizzing sound was overheard shadowed by the rushing out of bubbles from the bottle dipped in hot water. There was also a sound perceived in the bottle to be found in cold water but not as much as in bottle A.

Q8. There was amassed gas inside the bottle.

Q9. The hot water surges the temperature of the soda drink inside the bottle. As the temperature increases, more gas is accumulated inside the bottle. This reasons the fizzing sound.

Q10. The observation in the bottle of cooking oil is not the same as in the soda drinks.

<span>Q11. There was little gas out in the bottle of cooking oil for the reason of its structure. We know that soda drink is carbonated. The great temperature free the gas from the soda drinks.</span>

7 0
3 years ago
Read 2 more answers
Time (s)
olya-2409 [2.1K]

The moon orbiting the Earth

Explanation:

The motion of the moon orbiting the earth is a circular motion. Circular motion is simply the motion of an object in circle at constant speed.

  • A cannonball flying from a cannon is a projectile motion and not a circular motion.
  • A car moving along a straight track is a linear/translational motion.
  • Pendulum of a grandfather clock is a simple harmonic motion.

Learn more:

Circular motion brainly.com/question/2562955

#learnwithBrainly

7 0
3 years ago
Other questions:
  • A student drops a water balloon from tall building trying to hit her roommate on the ground below (and misses). After dropping t
    13·1 answer
  • A silver nugget has a mass of 30 g and a volume of 3 cm^3^. What is its density?
    5·2 answers
  • A cook preparing a meal for a group of people is an example of ______
    12·1 answer
  • Which of the following are true statements about the electric field? a. A moving charge produces a magnet anomaly. b. The electr
    6·1 answer
  • A basebal (radius = .036 m, mas = .145kg) is droped from rest at the top of the Empire State Building (height = 1250ft). Calcula
    11·1 answer
  • according to newton's third law, when a horse pulls on a cart, the cart pulls back on the horse with an equal force on the horse
    14·1 answer
  • Dsfhfdskjhfdkshjkfdhskjdfhkjshjkfhsdkjf
    5·1 answer
  • What is final velocity
    11·1 answer
  • What is current of 12 ohm? help me pleasee​
    13·1 answer
  • What happens when a sound wave passes by the particles of a medium?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!