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
shutvik [7]
3 years ago
9

How many C atoms are there in 5.25 grams of a compound containing 92.26% C and 7.74% H?

Chemistry
1 answer:
Damm [24]3 years ago
7 0
Take 5.25 grams and give it proportionally to the carbon
0.9226 * 5.25 grams = 4.84 grams Carbon
Find the number of moles
(4.84 grams carbon)/(12.01 grams/mol) = 0.403 moles Carbon
The number of atoms in a mole of a substance is called Avogadro's number.
There are 6.022 * 10^23 atoms in one mole of anything
(0.403 moles Carbon) * (6.022 * 10^23 atoms/mole) = 2.43 * 10^23 atoms of Carbon
You might be interested in
Write a word equation for the chemical reaction.<br><br> I’ll brainlist.
Alex

Answer:

potassium hydroxide + sulfuric acid → potassium sulfate + water.

Explanation:

Hope it helps.. if yes, plz mark me as brainliest

5 0
3 years ago
Hi how are you today well have a great rest of your day
amid [387]

Answer:

I'm well and same to you

Explanation:

6 0
2 years ago
Read 2 more answers
2 Na + Cl2 --&gt; 2 NaCl<br> What is the mole ratio of sodium to sodium chloride?
Irina18 [472]

Answer: The mole ratio of sodium to sodium chloride 2:2.

Explanation:

As the given reaction equation is as follows.

2Na + Cl_{2} \rightarrow 2NaCl

Here, 2 moles of sodium reacts with 1 mole of Cl_{2} and leads to the formation of 2 moles of NaCl.

This means that 2 moles of sodium gives 2 moles of NaCl on reaction with chlorine.

Hence, the ratio of moles of sodium to sodium chloride is 2:2.

Thus, we can conclude that the mole ratio of sodium to sodium chloride 2:2.

6 0
3 years ago
You are given 2 balls that are made of the same material. They are also the same size and color. One is hollow and one is solid.
RUDIKE [14]

Answer:density

Explanation:

it’s how’s how dens the ball is

7 0
3 years ago
Consider the nuclear equation below. 222/66Rn--&gt;218/?Po+4/2He Which is the missing value that will balance the equation? 84 8
erastovalidia [21]
<h3>Answer:</h3>

84

<h3>Explanation:</h3>
  • The nuclear equation shows the decay of Radon-222 by emitting an alpha particle to form polonium-218.
  • When a radioactive isotope undergoes alpha-decay, the mass number is decreased by 4 while the atomic number decreases by 2.
  • Therefore, the complete nuclear equation is;

²²²₈₆Rn → ²¹⁸₈₄Po + ⁴₂He

  • The atomic number of Radon-222 decreases from 86 to 84 while the mass number decreases from 222 to 218, forming polonium-218.
4 0
4 years ago
Read 2 more answers
Other questions:
  • On reaction with acidified potassium dichromate(VII), two of the isomers are oxidized in two steps to produce different products
    11·1 answer
  • I really need the answer
    6·1 answer
  • What is the thermal energy of an object created by?
    11·1 answer
  • How many moles of oxygen gas would be needed to completely burn 8 moles of<br> hydrogen sulfide?
    8·1 answer
  • Is the path of electrons orbital or reactive?
    10·1 answer
  • I have 7 more questions left :’)
    14·2 answers
  • Pfffffffffffffffffffffffffffft
    9·1 answer
  • When 33 g of CaO and 10 g of H2O react, how many grams of calcium hydroxide would you expect to be produced* Explain your answer
    7·2 answers
  • Cho 1,08g một kim loại hóa trị III tác dụng với khí clo tạo thành 2,67 g clorua kim loại. Xác định tên kim loại
    13·1 answer
  • If the pOH of a nitric acid (HNO3) solution is measured as 11, what is the concentration of HNO3 solution?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!