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
nikklg [1K]
4 years ago
10

A 1.00 g sample of a hydrogen peroxide (H2O2) solution is placed in an Erlenmeyer flask and diluted with 20 mL of 1 M aqueous su

lfuric acid. To this solution is added 0.0200 M KMnO4 solution via a buret, until a pale purple color persists. This requires 22.50 mL of KMnO4 solution. What is the percent by mass of hydrogen peroxide in the original solution? (A) 0.613% (B) 1.53% (C) 3.83% (D) 7.65%
Chemistry
1 answer:
mihalych1998 [28]4 years ago
3 0
The percent by mass is0.613
You might be interested in
Which statement accurately describes
nalin [4]

Answer:

The correct answer is "Temperature is a measure of the average kinetic energy of the molecules in a substance".

Explanation:

The kinetic energy of a substance is defined as the power that results from the movement of its particles. In this sense, temperature could be defined as a measure of the average kinetic energy of the molecules in a substance. Actually, temperature expressed in Kelvin degrees is directly proportional to the average of the kinetic energy. On the other hand, heat is defined as the total energy in a substance.

6 0
3 years ago
If a boulder sits at rest on top of a mountain what conclusion can be made about the forces acting on the
maks197457 [2]

A boulder sits at rest on top of a mountain. What conclusion can be made about the forces acting on the boulder? The forces acting on the boulder are balanced (net force equals zero).

6 0
3 years ago
Read 2 more answers
Question 7 of 10
sweet [91]

Answer:

1s2 2s2 2p6 3s2 3p3

Explanation:

8 0
3 years ago
Read 2 more answers
The picture show multiple organisms called paramecia. Although paramecia (single-celled organisms) usually reproduce asexually,
agasfer [191]

Answer:

It means that the paramecium would be able to better control/regulate algae, bacteria, and other protists that can be found in water.

Explanation:

4 0
3 years ago
Read 2 more answers
Hello
nordsb [41]

Answer:

The ratio of the number of atoms of gold and silver in the ornament is 197 : 1080.

Explanation:

Let the mass of silver ornament be x.

Mass of gold polished on an ornament = 1% of x= 0.1 x

Moles of silver =\frac{x}{108 g/mol}

Number of atoms = Moles\times N_A

Where : N_A = Avogadro number

Moles of gold =\frac{0.1x}{197 g/mol}

Silver atoms =\frac{x}{108 g/mol}\times N_A

Gold atoms =\frac{0.1x}{197 g/mol}\times N_A

The ratio of the number of atoms of gold and silver in the ornament:

=\frac{\frac{0.1x}{197 g/mol}\times N_A}{\frac{x}{108 g/mol}\times N_A}

= 197 : 1080

3 0
3 years ago
Other questions:
  • The specific heat capacity of water is 4200 j/kg find the energy needed to heat
    9·1 answer
  • If 3.5 g H2 react with 18.7 g O2 what is the limiting reactant?
    10·2 answers
  • What is the ph of a 0.563 m solution of ammonium bromide? kb (nh3) = 1.8 × 10-5?
    14·1 answer
  • Which chemical reaction shows photosynthesis?
    12·1 answer
  • Water vapor condenses into a glass of water. The water is then placed in a freezer and changes into ice. What remains
    9·1 answer
  • An atom that undergoes radioactive decay and has a large nucleus most likely contains
    12·2 answers
  • HURRYYY!!!!!!!!!!
    15·1 answer
  • Conductors allows electricity to flow easily through them. (examples copper and
    7·2 answers
  • Heeeeeelp will give brainliest
    13·1 answer
  • Calculate the pOH for the following:
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!