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
Free_Kalibri [48]
3 years ago
15

What is the mass percentage of C in CH₃CH₂OH? Provide an answer to two decimal places.

Chemistry
1 answer:
tankabanditka [31]3 years ago
5 0

Answer:

here's your answer

Explanation:

Molar mass of CH3CH2OH = 46.06844 g/mol

This compound is also known as Ethanol.

Convert grams CH3CH2OH to moles  or  moles CH3CH2OH to grams

Molecular weight calculation:

12.0107 + 1.00794*3 + 12.0107 + 1.00794*2 + 15.9994 + 1.00794

Percent composition by element  

Hydrogen H 1.00794 6 13.128%

Carbon C 12.0107 2 52.143%

Oxygen O 15.9994 1 34.730%

You might be interested in
What keeps galaxies togther? How?
aleksklad [387]
Tough question, I would suggest using Google maybe, or just plain out asking your science teacher.
8 0
3 years ago
14. What is the mass of 5.99 moles of C6H2C14.
Flauer [41]

Hey there!

Find molar mass of C₆H₂Cl₄.

C: 6 x 12.01

H: 2 x 1.008

Cl: 4 x 35.45

------------------

     215.876g

This is the mass of 1 mole of C₆H₂Cl₄.

Multiply 215.876 by 5.99.

215.876 x 5.99 = 1293

The mass of 5.99 moles of C₆H₂Cl₄ is 1293 grams.

Hope this helps!

6 0
4 years ago
Calculating the Molecular Weight and Subunit Organization of a Protein From Its Metal Content The element molybdenum (atomic wei
Deffense [45]

Answer:

Dimer of two peptide chains with 1 mole of molybdenum metal each.

Explanation:

Percentage of molybdenum in protein = 0.08%

Molecular mass of nitrate reductase = 240,000 g

Mass of molybdenum = x

0.08\%=\frac{x}{240,000 g}\times 100=192 g

Moles of molybdenum =\frac{192 g}{95.95 g/mol}=2.00 mol

Each peptide chain of nitrate reductase contain 1 mole of molybdenum.

This means that nitrate reductase is composed of to two peptide chains. And in each peptide there is a single mole of molybdenum metal.

4 0
3 years ago
Use the picture of the heliocentric and geocentric models to answer the question below:
xxMikexx [17]

Answer:

Model 1 represents the old geocentric model of the solar system and Model 2 represents the newer heliocentric model of the solar system.

Explanation:

Model 1 has earth in the center, therefore it is geocentric. the geocentric model of the solar system is old. Nobody believes in it anymore because it is scientifically inaccurate.

Model 2 has the sun in the center, therefore it is heliocentric. This is the newer model of the solar system.

6 0
3 years ago
Please comment if you are sure about your answer . Thank you
ryzh [129]
2,3,7,10,13 i did this yesterday can u mark me brainliest

3 0
4 years ago
Other questions:
  • Why are salt and sugar both able to dissolve in water, even though the solutes have different types of chemical bonding?
    9·2 answers
  • Which substances will make a salt when combined?
    7·2 answers
  • Which type of bond is formed from sharing electrons?
    6·1 answer
  • I NEED HELP ASAP, If you help me I’ll give you Brainlist [Calorimetry and specific heat lab]
    5·2 answers
  • Heating water makes most solids in it
    6·1 answer
  • When a rotting log was turned over, pill bugs, termites , ants , fungi , and earthworms were living there. the termites represen
    12·1 answer
  • Nate measured an iron bar. He put the iron bar in the hot sun. When he measured the bar after it had been in the sun, it was sli
    6·1 answer
  • If you took a wire, connected one end to a rechargeable battery, and connected the other end to the leaf of a plant, would you b
    9·1 answer
  • The sum of protons and neutrons in an atom is called the.
    7·1 answer
  • 7. Rust is iron (III) oxide (Fe2O3). The owner of a 1959 Cadillac convertible wants to
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!