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
liraira [26]
2 years ago
12

How many molecules are there in 45.0 grams of CH ?

Chemistry
1 answer:
Sonbull [250]2 years ago
8 0

Answer:

There are 1.8021 ⋅ 1024 molecules of CH4 in 48 grams of CH4. To answer this question, you must understand how to convert grams of a molecule into the number of molecules. To do this, you have to utilize the concepts of moles and molar mass. A mole is just a unit of measurement. Avogadro's number is equal to 6.022 ⋅1023 molecules/mole. i think please dont complain to me if its wrong im sorry

Explanation:

You might be interested in
What three facts made Pluto difficult to find?
BigorU [14]
1 Its low gravitational influence.
2 Its extremely faint, compared to all the other objects out there.
3 Its Size
6 0
3 years ago
Read 2 more answers
Why is the anatomy of the human body not a general reason to study chemistry. Need help for a good reply.
ivolga24 [154]
Anatomy's a biology topic!
8 0
2 years ago
5.58e-18 + 8.65e-13 / -8.76e+06
evablogger [386]

Answer:

this is the answer:

− 10.13099839

Explanation:

5 0
3 years ago
What is the molarity of formaldehyde in a solution containing 0.25 grams of formaldehyde per mL?
Vikentia [17]

Answer:

8.33mol/L

Explanation:

First, let us calculate the molar mass of of formaldehyde (CH2O). This is illustrated below:

Molar Mass of CH2O = 12 + (2x1) + 16 = 12 + 2 + 16 = 30g/mol

Mass of CH2O from the question = 0.25g

Number of mole CH2O =?

Number of mole = Mass /Molar Mass

Number of mole of CH2O = 0.25/30 = 8.33x10^-3mole

Now we can calculate the molarity of formaldehyde (CH2O) as follow:

Number of mole of CH2O = 8.33x10^-3mole

Volume = 1mL

Converting 1mL to L, we have:

1000mL = 1L

Therefore 1mL = 1/1000 = 1x10^-3L

Molarity =?

Molarity = mole /Volume

Molarity = 8.33x10^-3mole/1x10^-3L

Molarity = 8.33mol/L

Therefore, the molarity of formaldehyde (CH2O) is 8.33mol/L

3 0
3 years ago
What is the mass of 1.75 moles of magnesium atoms
Artemon [7]

Hey there!

Molar mass of magnesium is 24.305.

One mole of magnesium has a mass of 24.305 grams.

We have 1.75 moles.

Multiply 1.75 by 24.305.

1.75 x 24.305 = 42.5

1.75 moles of magnesium has a mass of 42.5 grams.

Hope this helps!

6 0
2 years ago
Other questions:
  • True/False: A neutral atom contains the same number of protons as electrons
    10·2 answers
  • A meander is best described as a
    10·1 answer
  • 2H2 + O2 → 2H2O
    10·1 answer
  • Calculate the molar mass<br> CaCl2<br> Ca(NO3)2 <br> Ca(OH)2 <br> CaSO4 <br> BaCl2
    12·2 answers
  • What is the energy of a photon of green light whose frequency is 6.85 X 1014/seC?
    8·1 answer
  • How many senses does the human body have?<br> O A. 3<br> B. 5
    5·2 answers
  • Please help thank you
    13·1 answer
  • 7. What assumption of the kinetic-molecular theory explains why a gas can expand to fill a container?
    6·1 answer
  • Which pictures shows the proper structure of the water molecule? Click the picture to see each choice.
    11·1 answer
  • Calculate the root mean square velocity, in m/s, of carbon dioxide molecules at 100.0
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!