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
Mars2501 [29]
3 years ago
9

How many moles of C8H18 contain 9.25 × 1024 molecules of C8H18 ?

Chemistry
1 answer:
fiasKO [112]3 years ago
3 0
<span>One mole of any material contains 6.02 * 10e23 atoms or molecules. This is the Avogadro number. So 9.25 * 10e24 atoms are contained in (9.25*10e24 / 6.02 * 10e23) = 15.36 moles. So the answer is that moles of C8H18 is 15.36 moles</span>
You might be interested in
The temperature of 100 g of liquid water in a calorimeter changes from 25°C to 50°C. How much heat was transferred? Use the equa
Lilit [14]
I belive it is 10.45, i have the same question
6 0
3 years ago
Read 2 more answers
In chemistry, what would the chemical reaction look like if you added graphite to a solution of lead (II) nitrate?
aleksandrvk [35]
Can i guess, am i gonna give a suspension, so the graphite is gonna settle at the bottom

6 0
3 years ago
Biphenyl, C12H10,C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6.C6H6. At 25 ∘C,25 ∘C, the vapor p
cestrela7 [59]

Answer:

Vapour pressure of solution is 78.151 torr

Explanation:

Molar mass of biphenyl = 154.21 g

Molar mass of benzene = 78.11 g

19.2 g biphenyl = (19.2/154.21) moles of biphenyl = 0.125 moles of biphenyl

33.7 g of benzene = (33.7/78.11) moles of benzene = 0.431 moles of benzene

Total number of moles = (0.125+0.431) moles = 0.556 moles

Mole fraction of benzene in solution = (0.431/0.556) = 0.775

According to Roults law, vapour pressure of solution made from non-volatile solute = (mole fraction of solvent in solution)\times (vapour pressure of pure solvent)

Here solute is biphenyl and solvent is benzene

So, vapour pressure of solution = (0.775\times 100.84)torr = 78.151 torr

8 0
3 years ago
Which of these statements about the Sun is accurate?
Ymorist [56]

C.

The energy produced by the Sun comes from nuclear fusion reactions.

Explanation

during formation of the solar system the centrifugal force of the sun caused it to collapse on it's self initialising nuclear fusion.

8 0
3 years ago
Read 2 more answers
One mole of which of these compounds contains two moles of hydrogen atoms?NaOH H2S NH3 CH4
Nookie1986 [14]

Answer:

H2S.

Explanation:

That would be H2S,  hydrogen sulphide. (Smells like bad eggs!).

8 0
3 years ago
Other questions:
  • How would you describe the atoms in a hot cup of coffee?
    8·1 answer
  • These two particles have approximately the same mass:
    14·1 answer
  • When a scientist conducts an investigation, which of the following is the first thing he or she should do?
    9·2 answers
  • Is Sulfur hexachloride an ionic compound?
    7·2 answers
  • An iron nail with a mass of 12 g absorbs 12 J of heat.
    5·1 answer
  • Treating chronic heartburn with excessive sodium bicarbonate can lead to the acid-base disturbance known as __________.
    6·1 answer
  • An object has a mass of 4 grams and a volume of 2 cm3 what is the density of the object ​
    15·1 answer
  • 4) Calculate the energy of a quantum of radiant energy with a frequency of 3.00 x 1013 1/s.
    14·2 answers
  • How does an electrolytic cell work?
    11·1 answer
  • What is the empirical formula for propene (C3H6)?<br> C2H4<br> O C4H8<br> O C3H6<br> O CH2
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!