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
MaRussiya [10]
3 years ago
5

What is the mass in grams of 9.45*10^24 molecules of methanol (CH3OH)?

Chemistry
1 answer:
Angelina_Jolie [31]3 years ago
6 0
Number of moles:

1 mole ---------- 6.02x10²³ molecules
? moles --------- 9.45x10²⁴ molecules

1 x ( 9.45x10²⁴) / 6.02x10²³ =

9.45x10²⁴ / 6.02x10²³ => 15.69 moles of CH3OH

Therefore:

Molar mass CH3OH = 32.04 g/mol

1 mole ------------ 32.04 g
15.69 moles -----  mass methanol

Mass methanol  = 15.69 x 32.04 / 1 => 502.7076 g


You might be interested in
10. When the pressure on a gas inetcases three times, by how much will the volume incrcase or decrease?
blagie [28]

Answer:The answer to this question comes from experiments done by the scientist Robert Boyle in an effort to improve air pumps. In the 1600's, Boyle measured the volumes of gases at different pressures. Boyle found that when the pressure of gas at a constant temperature is increased, the volume of the gas decreases. when the pressure of gas is decreased, the volume increases. this relationship between pressure and volume is called Boyle's law.

Explanation: So, at constant temperature, the answer to your answer is: the volume decreases in the same ratio as the ratio of pressure increases.

BUT, in general, there is not a single answer to your question. It depend by the context.

For example, if you put the gas in a rigid steel tank (volume is constant), you can heat the gas, so provoking a pressure increase. But you won't get any change in volume.

Or, if you heat the gas in a partially elastic vessel (as a tire or a soccer ball) you will get both an increase of volume AND an increase of pressure.

FINALLY if you inflate a bubblegum ball, the volume will be increased without any change in pressure and temperature, because you have increased the NUMBER of molecules in the balloon.

There are many other ways to change volume and pressure of a gas that are different from the Boyle experiment.

4 0
3 years ago
A sealed container with liquid water in the bottom was left standing at a constant temperature until the air above the water sur
Julli [10]

Answer:

Saturation.

Explanation:

Hello,

In this case, the statement is accounting for the saturation vapor pressure as it is the pressure of a vapor which is in equilibrium with its liquid, in other words it is the maximum exerted pressure possible by the vapor at a given temperature or just the maximum amount of the vapor, so there is neither no more vapor that could condense nor more liquid that could boil.

Best regards.

7 0
3 years ago
Equal masses of substance A and substance B are at 25°C. Substance A has a lower specific heat capacity than substance B. If 50
liraira [26]
Dang bro that stuff is really hard I’m defiantly on a lower grade lol
6 0
3 years ago
Solve pls brainliest
inna [77]

Answer:

Explanation:

The two green substances are not the same.  Most of their properties are different, except some are alike.  Since not all of their properties are matching, they are not the same substance.

I am not sure if this is what you were looking for, but if it is then I am happy to help.  

7 0
2 years ago
Which of the following is NOT a product obtained from the distillation of coal tar?
rjkz [21]

Answer:

Coke.

Explanation:

The distillation of coal tar can obtain aromatic compounds like benzene and toluene, and also phenolic compounds like phenol. Hence, the only option here that cannot be obtained from the distillation of coal tar is coke.

Hope this helped!

7 0
3 years ago
Read 2 more answers
Other questions:
  • Lists how many valence electrons are shared, gained, or lost by each atom of the 6 compounds?      
    15·1 answer
  • A(n) ____________ is a substance in which all the exact combinations of elements are always the same.
    5·1 answer
  • HELP ASAP!! THIS IS DUE TOMORROW!! I WILL MARK YOU AS A BRAINLIEST IF ANSWERED NOW!! <br><br> #1-7
    6·1 answer
  • How many sodium atoms does 2NaOH have?
    9·2 answers
  • What is the [OH-] of solution with pH of 3.4?
    8·2 answers
  • What is meant by the term activation energy?
    6·1 answer
  • Which property of water helps islands have temperate weather throughout the year?<br><br> (1 point)
    6·1 answer
  • PLZZZ HELP. Just say yellow goes under ..... for example.
    5·1 answer
  • What is the approximate total number of atoms in 1.0 mole of lithium?
    10·1 answer
  • 1) The hydrocarbon C15 H32 burns to form carbon dioxide and water. Write the equation for the reaction.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!