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
MrMuchimi
3 years ago
8

A sample of a hydrocarbon contains 20.75 g C and 4.25 g H. Its molar mass is 58.04 g/mol. What is its empirical formula C2H5 CH2

CH C5H
Chemistry
2 answers:
Nataliya [291]3 years ago
7 0

Answer : The empirical formula is, C_2H_5

Solution : Given,

Mass of C = 20.75 g

Mass of H = 4.25 g

Molar mass of C = 12 g/mole

Molar mass of H = 1 g/mole

Step 1 : convert given masses into moles.

Moles of C = \frac{\text{ given mass of C}}{\text{ molar mass of C}}= \frac{20.75g}{12g/mole}=1.73moles

Moles of H = \frac{\text{ given mass of H}}{\text{ molar mass of H}}= \frac{4.25g}{1g/mole}=4.25moles

Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.

For C = \frac{1.73}{1.73}=1

For H = \frac{4.25}{1.73}=2.5

The ratio of C : H = 1 : 2.5

In the whole number the ratio of C : H = 2 : 5

The mole ratio of the element is represented by subscripts in empirical formula.

Therefore, the empirical formula is, C_2H_5

Xelga [282]3 years ago
6 0
It is c2h5 if you our doing it on edunitey thats all i can say 

You might be interested in
78.5 mol of P4O10 contains how many moles of P?
MArishka [77]
<span>4 x 36 moles. of Phosporus and 10 x 36 of Oxygen. I hope this helps. (:</span>
7 0
3 years ago
How many electrons are in an atom of elemental sodium?
Hitman42 [59]
B) Equal to the number of protons
8 0
3 years ago
Read 2 more answers
Use the drop-down menus to complete the statement.
sweet [91]

Answer:commutator then current are the answers. I just took the question.

Explanation:

3 0
3 years ago
Read 2 more answers
Is naf an acidic, basic, or neutral solution?
lara31 [8.8K]
Its a base

as Na+ dissociates in the water and it has no basic nor acidic properties its neutral]

but the F- that also dissociates has certain basic properties 

hope that helps 
4 0
3 years ago
Would you expect Nio to dissolve in an aqueous solution of NaNO3?
Doss [256]

Answer:

NiO Does Not Dissolve In An Aqueous Solution Of NaNO3.

Explanation:

6 0
3 years ago
Other questions:
  • Which of these equations is balanced? a. 3 H2SO4 + 2Al → Al2(SO4)3 + 3H2 b. 2KCl + Pb(NO3)2 → KNO3 + PbCl2 a b a and b neither
    15·2 answers
  • Can u please help me with these 2 answers!
    5·1 answer
  • The most stable conformation of 1,2-dibromoethane is:
    9·1 answer
  • The natural abundance of 2h is 0.015% and that of 18o is 0.20%. How many 2h218o molecules are there in 1.0 moles of water?
    7·1 answer
  • How is radiation measured? (1 PowerPoint )
    10·2 answers
  • C3H18 +<br> O2<br> +<br> CO2 + H2O<br> Balance equation
    7·1 answer
  • At sea level water usually boils at 100. °C and 760. mmHg pressure. On Mt Whitney, the pressure is about 560. mmHg. At what temp
    13·1 answer
  • Compared to our solar system, the universe is
    5·1 answer
  • Who needs a higher caloric intake due to higher calorie expenditure? Person sitting on couch Person walking the dog Person playi
    11·1 answer
  • Which type of fat is a solid at room temperature and does not have double bonds between carbon
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!