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
Lubov Fominskaja [6]
4 years ago
9

A sample of hydrogen peroxide (H202) has 2.0 grams of hydrogen (H) and 32 grams of oxygen (O). What is the percent composition o

f hydrogen peroxide
Chemistry
1 answer:
Leto [7]4 years ago
3 0

Answer:

O = 94.117%

H = 5.882%

Explanation:

Hydrogen peroxide (H202) Molar Mass = 34g

OH 1-  17g/mol

H 1+ = 1g/mol

O = 16g/mol

2 Grams H

32 grams O

Percentage composition of  Hydrogen peroxide

O = 32/34 = 94.117%

H =    2/34 =   5.882%

You might be interested in
Which is an example of a catabolic process?
sergejj [24]

Answer:

baking bread

Explanation:

The presence of yeast makes this catabolic. The yeast is breaking down into smaller units

6 0
3 years ago
Read 2 more answers
A 25 mL sample of 0.100 M HNO3 completely reacts with NaOH according to this equation:
ASHA 777 [7]
To solve this equation you can use a basic molarity formula and substitute the correct values.

The formula for molarity is M = mol/L.

Start by changing your mL to L. To do this, divide 25 by 1000.
This results in:
.025 L

You can now rearrange your molarity formula to isolate what you are solving for, which is moles.
This leaves your formula as:
ML = mol

Now, plug in your converted volume and given molarity into the formula.
This leaves you with:
(0.100)(0.025) = mol

Multiply to find your final value for moles.
This results in:
0.0025 mol of HNO3

I hope this is what you’re looking for! :)
3 0
3 years ago
Read 2 more answers
What's 2x2 please help ​
podryga [215]

Answer:

2 x 2 = 4

Explanation:

Multiplication is just doubling the numbers depending on what you have. 3 x 3 = 9 because 3 three times is 9. Therefore, 2 two times is 4.

6 0
3 years ago
Read 2 more answers
1
balandron [24]

Answer:

Judges and justices serve no fixed term — they serve until their death, retirement, or conviction by the Senate. By design, this insulates them from the temporary passions of the public, and allows them to apply the law with only justice in mind, and not electoral or political concerns.

6 0
3 years ago
Read 2 more answers
A tarantula was walking along the sidewalk and walked 30 centimeters in 5 seconds. What was the average speed of the spider?
Marina CMI [18]
I’m pretty sure you would have to divide 5 and 30 and you will get 0.16666666 but I would think it would be 6cm/s but I could be wrong and if it is I’m am truly sorry.
7 0
3 years ago
Other questions:
  • How are skepticism and open-mindedness different? How are they alike?
    9·1 answer
  • What is normal body temperature in degrees celsius? express your answer numerically in degrees celsius?
    6·1 answer
  • A water sample is found to contain 59 ppm
    9·1 answer
  • I wrote this paragraph, and I need help. I need you to write a small, short conclusion. and then I need you to back up my plan w
    14·1 answer
  • What is the density of an unknown metal that has a mass of 178g and a volume of 20.0 ml
    9·2 answers
  • What causes the emission of radiant energy that produces characteristic spectral lines for a given element?​
    6·2 answers
  • Hydrogen atoms in a discharge tube are in their ground state. If a beam of free electrons of energy12.9 eV are fired at the hydr
    15·1 answer
  • If you were allowed to do a science project and it was about the nervous system, why would you do that topic
    12·2 answers
  • What are the difference between hemogeneous mixture and heterogeneous mixture ??​
    10·1 answer
  • As the amount of charge on two objects increases, the strength of the electrical force between the objects
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!