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
VMariaS [17]
3 years ago
12

How many molecules are in 18moles of CH.​

Chemistry
1 answer:
-Dominant- [34]3 years ago
8 0

Answer:

1.08 x 10²⁵molecules

Explanation:

From the mole concept we know that ;

      1 mole of any substance contains 6.02 x 10²³ molecules

This number is the Avogadro's number.

 So;

  18 mole of CH will contain:

       Number of molecules of CH  = 18 x 6.02 x 10²³ = 1.08 x 10²⁵molecules

The number of molecules is therefore 1.08 x 10²⁵molecules

You might be interested in
On.<br> pe. Where is the Hubble telescope located?
Lubov Fominskaja [6]

Answer:

space

Explanation:

6 0
3 years ago
Read 2 more answers
When does a double replacement reaction occur
lions [1.4K]

Answer:

u should call me justin bc I was just in your mom

6 0
3 years ago
Read 2 more answers
# of protons = 48 <br><br> Cadmium <br> Titanium <br> Oxygen <br> Krypton
Dafna11 [192]

Answer:

Cadmium +p= 48

Titanium p=22

Oxygen p=8

Krypton p=36

So the answer is Cadmium which has #48 protons

Explanation:

7 0
3 years ago
How much heat (in Joules) is needed to raise the temperature of 257g of ethanol (cethanol=2.4 J/g°C) by 49.1°C?
Sonbull [250]

Answer:

Q = 30284.88 j

Explanation:

Given data:

Mass of ethanol = 257 g

Cp = 2.4 j/g.°C

Chnage in temperature = ΔT = 49.1°C

Heat required = ?

Solution:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

Now we will put the values in formula.

Q = 257 g× 2.4 j/g.°C × 49.1 °C

Q = 30284.88 j

8 0
3 years ago
Write five characteristics of good government?​
Oduvanchick [21]

Explanation:

giving equal opportunity,making good governance, maintaining peace and harmony among people, other try to write by your self

5 0
3 years ago
Other questions:
  • Which of the following correctly describes a mixture? (4 points) Group of answer choices The particles are chemically bonded tog
    15·1 answer
  • What volume of 0.0748 M perchloric acid can be neutralized with 115 mL of 0.244 M sodium hydroxide?
    14·1 answer
  • A ray of yellow light has a wavelength of about 5.8×10−7 m. Will exposure to yellow light cause electrons to be emitted from ces
    6·1 answer
  • What volume of 0.305 m agno3 is required to react exactly with 155.0 ml of 0.274 m na2so4 solution? hint: you will want to write
    8·1 answer
  • Iron‑59 is used to study iron metabolism in the spleen. Its half‑life is 44 days. How many days would it take a 28.0 g sample of
    14·1 answer
  • 22 points!
    8·1 answer
  • Where can Earth's atmosphere be heated by conduction?
    9·2 answers
  • un estudiante de noveno año, quiere realizar varias mezclas de compuestos quimicos y tiene un frasco rotulado con la formula qui
    9·2 answers
  • ILL GIVE BRAINLIST Mrs. Kucalaba downloaded some science music from the Internet onto her iPhone. She listened to the science mu
    6·1 answer
  • What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!