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
Nitella [24]
3 years ago
13

A chemist adds of a potassium permanganate solution to a reaction flask. Calculate the mass in grams of potassium permanganate t

he chemist has added to the flask. Round your answer to significant digits.
Chemistry
1 answer:
boyakko [2]3 years ago
6 0

Answer:

3.41 g

Explanation:

<em>A chemist adds 260.0 mL of a 0.0832M potassium permanganate solution to a reaction flask. Calculate the mass in grams of potassium permanganate the chemist has added to the flask. Round your answer to 3 significant digits.</em>

Step 1: Given data

Volume of the solution (V): 260.0 mL (0.2600 L)

Concentration of the solution (C): 0.0832 M (0.0832 mol/L)

Step 2: Calculate the moles (n) of potassium permanganate added

We will use the following expression.

n = C × V

n = 0.0832 mol/L × 0.2600 L = 0.0216 mol

Step 3: Calculate the mass corresponding to 0.0216 moles of potassium permanganate

The molar mass of potassium permanganate is 158.03 g/mol.

0.0216 mol × 158.03 g/mol = 3.41 g

You might be interested in
If an electron travels at a velocity of 1.000 x 107 m/s and has a mass of 9.109 x 10-28 g, what is its wavelength?
alina1380 [7]
Good luck i don’t even know
3 0
2 years ago
What causes an ionic bond to form?<br><br>Look at the picture above
Gennadij [26K]
Attraction between a cation in one element and an anion in the other element
7 0
3 years ago
Read 2 more answers
I need help on thiss
Sergio039 [100]

The reaction is not balanced

<h3>Further explanation</h3>

Given

Reaction

2Fe(s)+3O₂(g)⇒2Fe₂O₃(s)

Required

The number of atoms

Solution

In a balanced chemical equation, the number of atoms in the compound that reacts (the reactants and products) will have the same number

Reactants : Fe(s)+O₂(g)

Fe = 2 atoms

O = 3 x 2 = 6 atoms

Products : Fe₂O₃(s)

Fe = 2 x 2 = 4 atoms

O = 2 x 3 = 6 atoms

The reaction is not balanced because the number of Fe atoms is not the same

The balanced reaction should be:

4Fe(s)+3O₂(g)⇒2Fe₂O₃(s)

8 0
3 years ago
Which of the following is not a step in the conversion of 1.3 dam3 to L?
Tanya [424]
First put the choices,and the answer is <span>(10^-3L/1mL)^3 is the correct answer.</span>
3 0
3 years ago
Which of the changes of state shown in the model happen when thermal energy is added
AysviL [449]

Answer:

sublimation

Explanation:

immediately into a gas when thermal energy is added to it. The process is called sublimation. Sublimation is the change of state from a solid to a gas without going through the liquid state.

3 0
3 years ago
Other questions:
  • Where are elements with atomic numbers 1 and 2?
    6·2 answers
  • Which element would be a good conductor of heat and electricity?
    11·2 answers
  • A/an _______ is a type of research that involves observation and collecting data but does not include a control. A. independent
    7·1 answer
  • What is the mole fraction of ethanol in a solution made by dissolving 29.2 g of ethanol, C2H5OH, in 53.6 g of water?
    9·1 answer
  • Which of thses is a mixture A:oxygen B:carbon C:air D:carbon dixoxide
    11·1 answer
  • Please help
    9·2 answers
  • A higher than normal high tide is called
    7·1 answer
  • What is the wavelength in picometers for an electron with 360 eV of kinetic energy?
    10·1 answer
  • How would Lithium gain full valence levels
    11·1 answer
  • How many milliliters of 0.130 M HCl are needed to completely neutralize 41.0 mL of 0.107 M Ba(OH)2 solution?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!