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
Klio2033 [76]
3 years ago
6

What is the percent by mass of carbon in acetone, c 3 h 6 o?

Chemistry
2 answers:
Angelina_Jolie [31]3 years ago
6 0

Answer: I just took the test and got 100%

1. B: 0.430 mol

2. B: percent composition

3. C: 71.5%

4. B: 62.1%

5. A: empirical formula

6. D: C16H24O4

7. D: 673g

Feel free to mark as brainliest :)

Tatiana [17]3 years ago
5 0
In the problem, we are tasked to solved for the amount of carbon (C) in the acetone having a molecular formula of C 3 H 6 O. We need to find first the molecular weight if Carbon (C), Hydrogen (H), Oxygen (O).

Molecular Weight:
C=12 g/mol
H=1 g/mol
O=16 g/mol

To calculate for the percent by mass of acetone, we assume 1 mol of acetone.
%C=( \frac{3(12 g/mol)}{3(12 g/mol)+6(1 g/mol)+16 g/mol} ) x 100%
%C=62.07%
Therefore, the percent by mass of carbon in acetone is 62.07%
You might be interested in
What is the molarity of a solution that contains 0.400 mol HCI in 9.79 L solutions ​
USPshnik [31]

Molarity's formula is known as: Molarity(M)=moles of solute/liters solution.

In this case we are already given moles and liters so you just have to plug the numbers into the equation.

0.400 mol HCL/9.79L solution=0.040858M

If you were to use scientific notation, the answer will be: 4.1*10^-2, but otherwise, you can just use the decimals above and round appropriately as you see fit.

6 0
3 years ago
Cellular respiration uses glucose and oxygen, which have high levels of free energy, and releases carbon dioxide and water, whic
Alja [10]

Answer: Cellular respiration is spontaneous and exergonic. The energy released from the glucose is stored in ATP molelcules.

Explanation:

Spontaneous reactions have an increase in entropy (level of disorder) and a decrease in enthalpy (total energy). Cellular respiration goes from a more ordered state (one molecule of glucose) to a more disordered state (several molecules of CO2), and goes from a state with a lot of free energy to one with much less free energy. As a result, respiration is a spontaneous process.

As free energy from the glucose is released as ATP molecules during oxidation, the reaction is exergonic.

4 0
3 years ago
Read 2 more answers
The symbol for the hydroxide ion is _____. H + H 3 O - H(OH) OH -
dimulka [17.4K]
The symbol for the hydroxide ion is OH-
3 0
3 years ago
Read 2 more answers
What is the function of the load in<br> an electric circuit?
mezya [45]

Answer:

The source side of the circuit includes all parts of the circuit between the positive side battery post and the load. The load is any device in the circuit that produces light, heat, sound or electrical movement when current is flowing. A load always has resistance and consumes voltage only when current is flowing.

Explanation:

plz Mark my answer in brainlist

and follow me plz

8 0
3 years ago
Read 2 more answers
What is the most important factor that determines Earth’s temperature?
poizon [28]

Answer:

sunlight

Explanation:

the greatest factor affecting Earth is sunlight. Sun provides energy for living organisms, and it drives our planet's weather and climate by creating temperature gradients in the atmosphere and oceans.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which Group 14 element is classified as a metal?
    7·1 answer
  • For the reactionN2(g)+O2(g)?2NO(g)classify each of the following actions by whether it causes a leftward shift, a rightward shif
    15·1 answer
  • Name three machines which convert straight motion to circular motion.
    8·1 answer
  • What contribution did these scientists make to atomic models of the atom?
    6·1 answer
  • Which is an example of physical contamination?
    14·1 answer
  • Why it is so difficult to discover superiority of nature in creation and maintaining chemical bonds between elements?
    9·1 answer
  • What are the characteristics of a gas? no definite shape but a definite volume a definite volume and definite shape a definite s
    6·2 answers
  • What is the percent composition of K2O?
    8·2 answers
  • Why did bohrs observations of gaseous elements not reveal a complete spectrum when the light was shone through a prism? explain
    5·1 answer
  • Write a balanced nuclear equation for the following: The nuclide astatine-218 undergoes alpha emission to give bismuth-214
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!