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
What are the kingdoms of eukaryotes
Talja [164]
Protists,fungi,plantar and animalia
4 0
3 years ago
Remember that each amino acid change is caused by a single nucleotide substitution. Use this information to further limit the po
amid [387]

Answer:

The answer to your question is: first two.

Explanation:

Codons that code for Arginine   AGA and AGG

Then,

                  AGA AGG CGA CGC  CGG  CGU

The first two codons will code for Arginine

8 0
3 years ago
I need help please. The top question.
Eddi Din [679]

Answer:

i cant see anything lol sorry

Explanation:

3 0
3 years ago
Which of the following is the correct calculation for determining the density of an object with a mass of 54 g and a volume of 6
RSB [31]

Answer:

\rho =9g/mL

Explanation:

Hello,

In this case, since the density is computed via the division of the mass by the volume:

\rho =\frac{m}{V}

For the given mass of 54 g and volume of 6 mL, the density turns out:

\rho =\frac{54g}{6mL}\\ \\\rho =9g/mL

Best regards.

3 0
2 years ago
Coal is burned in the atmosphere to release energy. Which gas is needed for burning to take place?
irga5000 [103]

Answer:

Oxygen gas is needed for burning to take place.

Explanation:

I don't say you have to mark my ans as brainliest but if it has really helped you plz don't forget to thank me...

3 0
2 years ago
Other questions:
  • A scientist observed that fiddler crabs are capable of plugging up the territorial burrows that they live in. These territorial
    15·2 answers
  • Identify the compound that does not have hydrogen bonding. identify the compound that does not have hydrogen bonding. ch3oh h2o
    9·2 answers
  • Calcium carbonate is a type of hydrogenous sediment that can be buried and hardened into _____.
    13·2 answers
  • Which best explains why blood and the cytoplasm of cells are mainly composed of liquid water?
    6·2 answers
  • Answer quick (image)
    14·1 answer
  • I need to make 4.5L of a 1.0mol/L solution of acetic acid, HC2H3O2. What volume of concentrated 17.4 Mol/L acid do I need?
    10·1 answer
  • NEED ANSWER ASAP
    6·1 answer
  • A mixture that has the same composition through out is called
    6·2 answers
  • Advantages of artificial fertilizers?
    14·1 answer
  • What ive learned about heat,sound and light​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!