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
allsm [11]
3 years ago
10

A hydrocarbon is a compound that contains mostly carbon and hydrogen. Calculate the percent composition (by mass) of the followi

ng hydrocarbon: C 7 H 16 .
Enter the percentages of carbon and hydrogen numerically to four significant figures, separated by commas.
Chemistry
1 answer:
Katena32 [7]3 years ago
7 0
C7H16, where C=12.01, and H=1.01, so the weight of the molecule would be 7(12.01)+16(1.01), or 100.23. The percentage of carbon would be found by ((7*12.01)/100.23)*100=83.88% Carbon
((16*1.01)/100.23)*100=16.12% Hydrogen
You might be interested in
If a sample of pure cadmium has a mass of 18.2 grams, how many moles of cadmium are in the sample?
Mars2501 [29]
Atomic mass cadmium = 112.41 amu

1 mole Cd ------------ 112.41 g
?? moles Cd --------- 18.2 g

18.2 x 1 / 112.41 => 0.161 moles of Cd

hope this helps!
3 0
3 years ago
12. Contrast the movement of charges in a
nikdorinn [45]
DEEZ NUTS ha gattti -sorry
4 0
3 years ago
PLEASE HELP I DONT UNDERSTAND A THING
Ymorist [56]

Answer:

I and III

Explanation:

6 0
3 years ago
What is one result of a chemical change?
laila [671]
B. A new material is formed
4 0
3 years ago
If further increases in substrate concentration do not result in further increases in reaction rate, then an enzyme is likely
igor_vitrenko [27]

Given what we know, we can confirm that if further increases in substrate concentration do not result in further increases in reaction rate, then an enzyme is likely saturated.

<h3>What does it mean for an enzyme to be saturated?</h3>

Enzymes work by binding to the substrate in specific zones of the enzyme. The zones are known as the active sites on enzymes. Since enzymes have a limited amount of these zones, once they are all bonded to a substrate, we can say that it is saturated.

Therefore, the saturation of enzymes allows us to explain how further increases in substrate concentration do not result in further increases in reaction rate.

To learn more about enzymes visit:

brainly.com/question/24811456?referrer=searchResults

4 0
2 years ago
Other questions:
  • Why are plastics called polymers? Explain the nature of a polymer.<br><br><br><br> Hurry please!
    7·1 answer
  • Please sketch a propanol
    9·2 answers
  • A conducting sphere has a net charge of 4.8  1017
    13·1 answer
  • During a titration, a known concentration of _____ is added to a _____ of an unknown concentration g
    9·1 answer
  • The atomic particle with a charge of -1.6 x 10-19 C is
    7·1 answer
  • Hey I need help with 84-88
    7·1 answer
  • 1 When 25 cm of 1.0 mol/dmº copper sulfate solution was mixed vith an excess of zinc
    12·1 answer
  • What types of energy are involved in a chemical reaction?
    13·1 answer
  • How is the element lead formed?
    15·1 answer
  • Vanillin the flavoring agent in vanilla has a mass percent composition of 63.15 per h ,31.55per o. determine the empirical formu
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!