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
FromTheMoon [43]
3 years ago
7

How many moles are in 25.3 g of a sample of potassium nitrate (KNO3)?

Chemistry
1 answer:
aksik [14]3 years ago
8 0

Answer:

25.3 g of KNO₃ contain 0.25 moles.

Explanation:

Given data:

Number of moles of KNO₃ = ?

Mass of KNO₃ = 25.3 g

Solution:

Formula:

Number of moles = mass/ molar mass

Molar mass of KNO₃:

KNO₃ = 39 + 14+ 16×3

KNO₃ = 101 g/mol

Now we will put the values in formula.

Number of moles = 25.3 g/ 101 g/mol

Number of moles = 0.25 mol

Thus, 25.3 g of KNO₃ contain 0.25 moles.

You might be interested in
Decide whether the property measured was a chemical or physical property of X, if you can. If you don’t have enough information
olga nikolaevna [1]

Answer:

<u><em>See attachment for explanations.</em></u>

Explanation:

3 0
1 year ago
Apakah biodiversiti ? ​
inna [77]
Biodiversiti adalah kehidupan di dunia termasuk manusia, hewan dan tumbuhan
6 0
2 years ago
Brown eye color is a dominant trait and blue eye color is a recessive trait.
Ksju [112]

Answer:

A. The person has brown eyes, and the brown eye color remains a dominant trait.

Explanation:

The dominant trait will always be the one to be show. The recessive trait will be shown if both recessive alleles are inherited.

3 0
2 years ago
given the following hypothetical reaction 2E(g)+ F(g)+O(g)_products.if the rate law is rate _K(e)^2(f)^-1,what is the order of t
Yuliya22 [10]

Answer:

See explanation.

Explanation:

Hello there!

In this case, considering the given information, it is not possible to figure out such order of reaction with respect to water as it is not involved in the given chemical reaction:

2E(g)+ F(g)+O(g)_

However, we can say that the order of reaction is 2 with respect to E (power of 2 in the rate law), 1 with respect to F (power of 1 in the rate law) and 0 with respect to O (power of 0 or not present in the rate law).

Regards!

8 0
2 years ago
Describe an adaptation to a plant's life cycle and explain how this adaptation helps the plant survive. (2 points)
dusya [7]

Answer:

Aquatic plants that live underwater have leaves with large air pockets inside that allow the plant to absorb oxygen from the water.

8 0
2 years ago
Read 2 more answers
Other questions:
  • How big is the world?
    15·2 answers
  • Consider the reaction below.
    14·2 answers
  • Calculate the molarity of the two solutions.
    15·1 answer
  • Using the words Kool Aid, sugar, and water, explain how a solution can be:
    5·1 answer
  • Definition for outcome variable
    7·1 answer
  • Mass is the ________(1)________, where as depth is the ________(2)________
    8·1 answer
  • What is neutralization reaction?
    10·2 answers
  • Which of the following is not a factor that affects thermal energy of a substance?
    13·1 answer
  • What are the uses of the periodic <br>table? &gt;what are the use of periodic table ​
    6·1 answer
  • I'll give brainliest!!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!