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
Whitepunk [10]
3 years ago
15

Find the percent composition of each element in KMnO4

Chemistry
1 answer:
VARVARA [1.3K]3 years ago
6 0
The way you want to find the percent composition would be by breaking down the problem like so:

K= atomic mass of K which is 39.098
Mn = atomic mass of Mn which is 54.938
O= atomic mass of o which is 15.999

Then you want to add 39.098+ 54.938+ 15.999 and you get 110.035 which is the molar mass for KMnO

Then you want to take each molar mass and then divide it 110.035 and multiply by 100

Ex. K = 39.098/ 110.035 and the multiply what you get by a 100

You do this for the other elements as well good luck!


You might be interested in
CAN SOMEONE HELP PLEASE!!!!!!!!!!!!!!!!!!!!!
aalyn [17]

Check for endorsements by celebrities of home-improvement shows.
4 0
3 years ago
What is the shorthand electron configuration for Ba2+​
Arada [10]
Since the barium ion will be isoelectronic to the nearest noble gas, which is xenon, the electronic configuration for Ba2+ is: [Xe]
3 0
3 years ago
A breakfast of cereal, orange juice, and milk might contain 230 nutritional Calories. How much is this in Joules?
Sophie [7]

Answer:

B

Explanation:

962,320 J

230 nutritional Calories in Joules is 962,320 J

4 0
2 years ago
1. Why does cabbage juice have different colors at different pH levels?
zlopas [31]

1:Red cabbage contains a water-soluble pigment called anthocyanin that changes color when it is mixed with an acid or a base.

2: Basic

7 0
2 years ago
Most chemical reactions can be classified as one of four types. Using the chemical equations in the Gizmo as a guide, match the
Lostsunrise [7]

Answer:

<h2>The sequence is; b, e, a, d, c </h2>

Explanation:

1. In a decomposition reaction; One reactant is broken down into two or more than two products is called decomposition.

2. A combustion reaction; A fuel is combined with oxygen to produce carbon dioxide and water, this reaction is called combustion reaction.

3. A synthesis reaction; it occurs when two or more reactants combine to form one product is known as synthesis reaction.

4. Double Replacement Reaction; Two compounds react to form two different compounds is known as double Replacement Reaction.

5.  A single replacement reaction; occurs when a compound reacts with an element to form a new compound , this reaction is called as  single replacement reaction.

3 0
3 years ago
Other questions:
  • C8 H10 N4 O2 is the chemical formula for caffeine. What are the 3 remaining elements in caffeine and how many atoms of that elem
    8·1 answer
  • How did Dalton gather evidence for the existence of atoms?
    5·1 answer
  • What makes a theory scientific? this is for earth and space science .
    11·1 answer
  • What is the overall charge on the compound, sodium hydroxide?
    14·1 answer
  • 50 One beneficial use of radioisotopes is(1) detection of disease
    5·1 answer
  • Pick the TWO conversions which are exact.
    15·2 answers
  • 20 POINTS PLZ ANSWER FAST !!!!!!!!!!!!!!!!!!
    7·1 answer
  • Gas stoichiometry a sample of methane gas having a volume of 2.80 L at 25c and 1.65 atm was mixed with a sample oxygen gas havin
    11·1 answer
  • Hello po pa help hehehehe​
    7·2 answers
  • Plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz help :) ..
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!