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
shtirl [24]
3 years ago
13

How many liters of air must react with 2500 mL of hexane in order for combustion to occur completely. The percentage of oxygen i

n air is 20.9%.
Chemistry
1 answer:
bagirrra123 [75]3 years ago
7 0

Answer:

118750 ml

Explanation:

The chemical equation for complete combustion of hexane is given as;

2C6H14 + 19O2 → 12CO2 + 14H2O  

From the equation of the reaction;

2 mol of C6H14 reacts with 19 mol of O2

2 ml of C6H14 reacts with 19 ml of O2

2500 mL of C6H14 would react with x ml of O2

2 = 19

2500 = x

x = 2500 * 19 / 2 = 23750 ml

Since oxygen is 20% of air;

23750 = 20 / 100 * (Volume of air)

Volume of air = 23750 * 100 / 20 = 118750 ml

You might be interested in
Which law states that the volume of a gas is proportional to the moles of the gas when pressure and temperature are kept constan
Phoenix [80]
<span>Boyles law states that the volume of a gas is proportional to the moles of the gas when pressure and temperature are kept constant.    </span>
3 0
3 years ago
Read 2 more answers
The smaller radius is primarily a result of the magnesium atom having ??
Aleksandr [31]

Answer:

A larger nuclear charge :)

Explanation:

8 0
3 years ago
Which would be a good source to find weather information about your town from last month?
VLD [36.1K]

Answer:

a reference book about weather

Explanation:

6 0
3 years ago
A cheetah can run 112km/h over a 100-m distance. what is this speed in meters per second
Naya [18.7K]
First convert the 112 km/hr ratio into m/s (meters per second). To do this you multiply 112 km with 1000 m/km (since there's 1000 m in one km). You get 112000 m. Then multiply 1 hr with 60 min/hr (since there's 60 min in one hr. You get 60 min, but you want seconds, so multiply 60 min with 60 s/min to get 3600 s. There you go! Your answer is the speed of 112000m/3600s, but you can simplify that to 31.11m/s (since the answer should be in ? meters per 1 second.

Also, the "100-m-distance" part of the question is just to throw you off, because one particular speed obviously stays constant over any distance. Hope that helps :)
7 0
3 years ago
A runner travels at a constant speed of 4 m/s. What happens to the velocity of the runner when the runner changes direction?
ANTONII [103]

Answer:

4m/s in the direction of the turn

Explanation:

The velocity of an object is the rate of change of its position with respect to a frame of reference.

Assuming the runner stays the same speed as he turns, his velocity will be 4m/s in the speed he turns.

5 0
3 years ago
Other questions:
  • If 23.9 mL of the strontium hydroxide solution was needed to neutralize a 31.5 mL aliquot of the nitric acid solution, what is t
    9·1 answer
  • Why do ionic borids form between metal and no metals
    5·1 answer
  • Chemistry questions?
    9·1 answer
  • Which ion has the largest radius?<br>1) Br-<br>2) Cl-<br>3) F-<br>4) I-​
    12·1 answer
  • A solution is made by adding 360 g of table salt into 1 L of water. The solubility of the salt is 36 g/100 mL water. Which term
    15·2 answers
  • Which weak acid would be best to use when preparing a buffer solution with a ph of 9.80?
    11·1 answer
  • In coca cola the ingridents are : CARBONATED WATER.
    9·1 answer
  • What would be the effect of each of the following sources of error on the molarity of H2SO4 determined in this experiment? State
    6·1 answer
  • ANSWER ASAP GIVING BRAINIEST FIVE STARS AND HEART!
    7·2 answers
  • Question 16 of 30
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!