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
7

If you have 100.0 grams of carbon and 100.0 grams or iron, which sample will contain more atoms

Chemistry
1 answer:
vodomira [7]3 years ago
6 0
First you need to solve for the number of moles in each. 
1 mole of anything = atomic mas of that element (g)

Carbon has an atomic mass of 12.0107
1 mole of Carbon = 12.0107 g

Iron has an atomic mass of 55.845
1 mole of Iron = 55.845 g

now convert each from grams to moles 
(grams of Carbon cancel and you are left with moles of carbon)
<u>100.0 g Carbon x 1 mol Carbon </u> = 8.326 mol Carbon
       12.0107 g Carbon

(grams of Iron will cancel and you are left with moles of iron)
<u>100.0 g Iron x 1 mol Iron</u> = 1.791 mol Iron
      55.845 g Iron

now we can use avogadro's number to solve for the amount of atoms in each 
1 mol = 6.02x10^23 atoms

<u>8.326 mol Carbonx 6.02 x 10^23 atoms </u> = 5.012 x 10^24 atoms Carbon<u>
</u>        1 mol Carbon
<u>
</u><u>1.791 mol Iron x 6.02 x 10^23 atoms </u> = 1.078 x 10^24 atoms Iron<u>
</u>        1 mol Iron
<u>
</u>5.012 x 10^24 atoms Carbon > 1.078 x 10^24 atoms Iron
<u>
</u>
You might be interested in
Which overall chemical equation is obtained by combining these intermediate equations?
Juli2301 [7.4K]
The common substance among the product(s) of the first equation and among the reactant(s) in the second equation is H2O(g). We can eliminate that as an intermediate. The overall chemical equation will thus be:

CH4(g) + 2O2(g) → CO2(g) + 2H2O(l),

which is the first answer choice.

In essence, all you’re doing here is swapping water vapor for liquid water.
5 0
2 years ago
Diamond and graphitr are made of what
Lana71 [14]

Diamond and graphite are made of carbon.  So is most of charcoal.


3 0
3 years ago
Read 2 more answers
What is the total number of liters of NH3 formed when 20 liters of N2 reacts completely
goblinko [34]

Answer:

N2 + H2 ----------》NH3

On balancing it

N2. + 3.H2------->2.NH3

( 1 mol) (3 mol) (2 mol)

1 mol of nitrogen reacts with 3 mol of hydrogen to give 2 mol of ammonia.

Likewise,

20 litres of nitrogen reacts with 60 litres of hydrogen to give 40 litres of Ammonia.

Hence, the answer is 40 Litres.

5 0
3 years ago
What is the density of a gas with a volume of 5.6 FL oz. and a mass of 37 grams?
Assoli18 [71]

Answer:

6.60

Explanation:

4 0
3 years ago
Read 2 more answers
How many joules of energy do you have if you have 0.45 L of water in a can and you heat the 23C water to 55C site:socratic.org
Bess [88]

Answer:

Q = 60192 j

Explanation:

Given data:

Volume of water = 0.45 L

Initial temperature = 23°C

Final temperature = 55°C

Amount of heat absorbed = ?

Solution:

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

ΔT =  55°C - 23°C

ΔT = 32°C

one L = 1000 g

0.45 × 1000 = 450 g

Specific heat capacity of water is 4.18 j/g°C

Q = m.c. ΔT

Q = 450 g.  4.18 j/g°C.  32°C

Q = 60192 j

4 0
3 years ago
Other questions:
  • 1)The metals of group 2 from top to bottom are: Be, Mg, Ca, Sr,Ba. Which if these metal will form ions most readily and why?
    15·1 answer
  • Two atoms of the same substance wi the different numbers of neutrons are called what
    14·1 answer
  • Mass of NaOH = 0.2 <br> Volume of solution 500 ml
    6·1 answer
  • Eukaryote:mitosis:: prokaryote:
    9·1 answer
  • Cuales son los tubos especializados de los riñones que filtran los desecjos de la sangre​
    6·1 answer
  • How do kidneys work with other body systems to maintain homeostasis?
    15·1 answer
  • Light strikes a beautiful white perch under water. This light is reflected back to your eyes allowing you to see the fish. As th
    6·1 answer
  • The activation energy for a reaction is 84.0kJ/mol. Addition of a catalyst lowers the activation energy by 23.0 kJ/mol, while le
    13·1 answer
  • Why is it necessary to find the percent yield of a reaction
    14·2 answers
  • How many cookies are there in one mole of cookies?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!