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
Flauer [41]
3 years ago
7

How many C-13 atoms are present, on average, in a 1.6000×104-atom sample of carbon?

Chemistry
2 answers:
Marrrta [24]3 years ago
7 0
<h3><u>Answer;</u></h3>

= 171 atoms of C-13

<h3><u>Explanation;</u></h3>
  • Carbon has two naturally occurring isotopes: C-12, whose natural abundance is 98.93% and C-13  whose natural abundance is 1.07%.
  • Therefore, the number of C-13 atoms sample of 1.6000×10^4 atoms of carbon will be;

          = (1.6000×10^4 × 1.07 %)/100%

           = 171.2

           ≈ 171  atoms

san4es73 [151]3 years ago
5 0
I don't know why I am answering this question but assuming C-13 has a natural abundance of 1.07%:

(1.6000x10^4)(0.0107) = 171.2 = 171 atoms of C-13
You might be interested in
A mixture of 620 lbmol/h of 36 mol% benzene and the remainder toluene is separated continuously into two products. One product i
Licemer1 [7]

Answer:

P_1=206.7lbmol/h\\\\P_2=413.3lbmol/h

Explanation:

Hello!

In this case, for the separation of the benzene-toluene mixture, we can use the following mole balances including the given mole fraction at each stream per species:

B:0.36*620=0.98P_1+0.05P_2\\\\T:0.64*620=0.02P_1+0.95P_2

That can be solved by using a solver for P1 (benzene-rich flow) and P2 (toluene-rich flow):

P_1=206.7lbmol/h\\\\P_2=413.3lbmol/h

Best regards!

3 0
3 years ago
How many moles is 2. 2 grams of CO2?.
lorasvet [3.4K]

The number of moles of carbon dioxide is 0.05 mol.

A molecule of CO2 contains one carbon atom and two oxygen atoms. One mole of CO2 contains one mole of carbon atoms and two moles of oxygen atoms. The mass of one atomic mole of an element equals the atomic mass in grams, and the molecular mass of an element or compound equals the sum of the atomic masses of each type of its constituent atoms.

Therefore, the mass of one mole of a molecule of an element or compound equals its molecular weight in grams. The number of grams in moles depends on the substance you have. To calculate it, find the atomic or molecular mass of the substance and multiply it by the number of moles.

Learn more about Carbon dioxide here:-brainly.com/question/25385913

#SPJ4

6 0
2 years ago
Which is a nonpolar molecule?
Colt1911 [192]
The answer is C- sulfur hexachlorine (SF6)

<span>S<span>F6 is the only molecule here that is non-polar. That's due to having the</span></span><span> fluorine atoms arranged in a way that, in pairs, they lie opposite to each other. Also, these pairs are perpendicular to each other on  three different axis.</span>

7 0
4 years ago
Read 2 more answers
if a gas has an initial pressure of 24,650 pa and an initial volume of 376 ml, what is the final volume if the pressure of the g
NNADVOKAT [17]

If a gas has an initial pressure of 24,650 pa and an initial volume of 376 ml, then the final volume would be 11,943.8144 ml if the pressure of the gas is changed to 775 torr assuming that the amount and the temperature of the gas remain constant.

It is given that the initial pressure P₁ is 24,650Pa and initial volumeV₁ is 376ml and the final pressureP₂ is 775 torr. We need to find the final volume of the gas. The final volume could be found using the following formula:

P₁V₁ = P₂V₂

By substituting the values, we get

24650 x 376 = 776 x V₂

9268400 = 776V₂

V₂ = 9268400/776

V₂ = 11,943.8144 ml

Therefore, the final volume of the gas would be 11,943.8144 ml

To know more about Partial pressure, click below:

brainly.com/question/14119417

#SPJ4

5 0
1 year ago
What causes atoms to form covalent bonds?
navik [9.2K]

Answer:

to attain stability atoms form covalent bonds

7 0
2 years ago
Other questions:
  • Why does the daylight increase when it get closer to summer
    11·2 answers
  • HELP PLEASE!!! Write the chemical equation and balance it!!!
    14·1 answer
  • combustion analysis of an unknown compound provides the following data: 73.5 grams carbon (C), 4.20 grams hydrogen (H) and 72.3
    11·1 answer
  • What are the signs of a chemical reaction?
    8·1 answer
  • At what temperature will water change from a solid to a liquid (melt)?
    5·2 answers
  • What is the purpose of the arrow in a chemical equation? A. It indicates the direction in which the reaction occurs. B. It separ
    7·2 answers
  • Commercially, liquid vegetable oils are converted to solid fats such as margarine by : Group of answer choices
    11·1 answer
  • Given the problem below, what would the first step be in solving it?
    5·1 answer
  • Assuming an efficiency of 49.70%, calculate the actual yield of magnesium nitrate formed from 139.0 g of magnesium and excess co
    6·1 answer
  • I WILL MARK BRAINLY-EST Do you think the way we perceive food in our culture supports the guidelines in MyPlate? Explain your
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!