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
Likurg_2 [28]
3 years ago
10

How many moles of methane (CH4) are in 7.31 x 10^25 molecules

Chemistry
2 answers:
Ivan3 years ago
6 0

molar mass of methane CH4

= C + 4 H  

= 12.0 + 4 x 1.008

= 12.0 +  4.032

= 16.042g/mol

7.31 x 10^25 molecules x <u>             1 mole  CH4    </u>  = 121.43 moles

                                       6.02 x 10^23 CH4 molecules

121.43 moles CH4 are present.

       


Alex73 [517]3 years ago
6 0

Answer : The number of moles of methane are, 121.39 moles

Explanation : Given,

Number of molecules of methane gas = 7.31\times 10^{25}

Now we have to calculate the number of moles of methane gas.

As, 6.022\times 10^{23} number of molecules of methane present in 1 mole of methane gas.

So, 7.31\times 10^{25} number of molecules of methane present in \frac{7.31\times 10^{25}}{6.022\times 10^{23}}\times 1mole=121.39 moles of methane gas.

Therefore, the number of moles of methane are, 121.39 moles

You might be interested in
1. Which of the following would likely form a heterogeneous mixture? (Points : 3)
Nata [24]
For the answer to the question above asking w<span>hich of the following would likely form a heterogeneous mixture?

The answer would be</span> <span>sand and water
other choices like
,baking soda salt and sugar are soluble in water and form homogeneous solution</span>
6 0
3 years ago
Read 2 more answers
How do organisms that are not autotrophs get they energy they need to sustain life
polet [3.4K]
They eat autotrophs, or each other. That's how they get energy.
Hope that answered your question.
8 0
3 years ago
How many moles of hypomanganous acid, H3MnO4, are contained in 22.912 g?
harkovskaia [24]

Answer:

0.188mol

Explanation:

Using the formula as follows:

mole = mass/molar mass

Molar mass of hypomanganous acid, H3MnO4 = 1(3) + 55 + 16(4)

= 3 + 55 + 64

= 122g/mol

Mass of H3MnO4 is given as 22.912 g

Hence;

moles = 22.912 ÷ 122

number of moles = 0.188mol

4 0
3 years ago
Determine whether each cation is acidic or pH-neutral. For the cations that are acidic, write an equation that shows how the cat
Anton [14]

THE COMPLETE QUESTION IS:

Determine whether each cation is acidic or pH-neutral. For those cations that are acidic, write an equation that shows how the cation acts as an acid . a. NH+4 b. Na+ c. Co3+ d. CH2NH+3

Answer:

<em>a. Acidic</em>

<em>b. neutral</em>

<em>c. Acidic</em>

<em>d. Acidic</em>

Explanation:

a. NH4+ + H2O <==> NH3 + H3O+ (NH4+ is a conjugate acid of a weak base. Therefore it is acidic)

b. Neutral. Na+ is a cation of a strong base. Therefore it's pH is neutral.

c. Co(H2O)6³+ + H2O <==>CoH2O5(OH)²+ + H3O+

(Therefore Co+ is a weak acid since hydronium ion is formed.)

d. CH2NH3+ is a conjugate acid of a weak base. Therefore it is acidic.

6 0
3 years ago
I want help with these questions thanks !​
Studentka2010 [4]

Answer:

I will give you hints, as follows:

Explanation:

- two words: climate change

- methane smells funny

- the number of electric cars sold each year is increasing

- there´s a reason they´re call "renewable"

- GEOmetry, GEOlogy, GEOthermal

Hope this helps!

5 0
2 years ago
Other questions:
  • A volume of 105 mL of H2O is initially at room temperature (22.00 ∘C). A chilled steel rod at 2.00 ∘C is placed in the water. If
    15·2 answers
  • HELP ASAP!!!!!!!!
    15·1 answer
  • The thin outer layer of Earth, called the crust, contains only 0.50 percent of Earth's total mass and yet is the source of almos
    14·1 answer
  • Neon has 8 electrons in it's outer shell. Does it need to bond? Why or why not?
    13·1 answer
  • 1. According to the following balanced chemical equation, how many moles of iron will react with 0.455 moles of chlorine? 2Fe(s)
    13·1 answer
  • Why should hypothesis be testable?
    15·2 answers
  • use the equation 2C4H10 +13O2--&gt;8CO2+10H2O to find how many moles of oxygen would react with .425 mol C4H10
    12·2 answers
  • Predict which of the following transition metal ions has a color Cr3+, Cd2+, Hg2+, V2+
    14·2 answers
  • Where is the temperate zone? A close to the equator B along bodies of water C next to the North and South Poles D between the po
    12·1 answer
  • I need the answer to this
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!