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
ElenaW [278]
3 years ago
9

25g of potassium nitrate are dissolved in 100g of water. What is the percent by mass of potassium nitrate?​

Chemistry
1 answer:
trapecia [35]3 years ago
8 0
The the exact mass is 24.740% (according to the internet) but I’d say that it’s 25
You might be interested in
The job the part does within organism is the
kramer
The answer it the function
7 0
3 years ago
How would you obtain pure sugar from a mixture of sugar, charcoal, and copper?
beks73 [17]
Pure sugar can be obtained from sugar solution by the process of crystallization. It involves heating which leads to evaporation of water to make the solution saturated. The saturated solution when left undisturbed convert to pure crystals of the sugar.
5 0
1 year ago
Consider the cell pt | h2 (1 atm); h+ (? m) || hg2cl2(s); cl− (1 m) | hg 2 h+ + 2 e − → h2 e 0 = 0.00 v hg2cl2 + 2 e − → 2 hg +
Dmitry [639]

Answer:

1.39

Explanation:

[Hg2Cl2]= 1M

[H^+] = ????

E°cell= 0.35V

E= 0.268 V

Therefore E for the reaction must -0.082 V

n= 2 moles of electrons

From Nernst Equation:

E= E°cell- 0.0592/n log [Red]/[Ox]

0.0268= 0.35- 0.0592/2 log 1/[Ox]^2

-0.082= -0.0296 log 1/[Ox]^2

log 1/[Ox]^2= 0.082/0.0296

log 1/[Ox]^2= 2.77

1/[Ox]^2=Antilog (2.77)

[Ox]^2=1.698×10^-3

[Ox] = 0.0412 M

But pH= -log [H^+]= -log(0.0412)= 1.385

3 0
3 years ago
Read 2 more answers
Calculate the mass of water formed when 4g of methane is burnt in excess oxygen​
wariber [46]

Answer:

Mass of water formed: 9g

Explanation:

Hope it helps you!

6 0
2 years ago
How many moles is 2.2 x 1023 atoms of Fe?
kow [346]

Answer:

it's 3.77 moles

Explanation:

Pls give brainliest :)

4 0
2 years ago
Other questions:
  • In order to control pollution, you should reduce the need for _____________ goods and transportation.
    6·2 answers
  • Type the appositive phrase in this sentence. "cookies with chocolate chunks," the winning recipe, received $100.
    15·1 answer
  • The loss of static energy electric charges move off an object is called
    7·2 answers
  • Explain how lowering the speed of the current that is transporting sediment could result in the deposition of that sediment.
    7·1 answer
  • For each of the following features of nucleic acids, indicate whether it is true of DNA only, of RNA only, of both DNA and RNA,
    6·1 answer
  • How many electrons are in the outermost energy shell of a neutral magnesium atom?
    11·1 answer
  • What is the number of moles in 500L of He
    9·2 answers
  • Which of the following elements is a metal in the periodic table​
    15·1 answer
  • 3 If methane burns in a poor supply of air it will give carbon
    5·1 answer
  • What is the difference between dissolving and dissociating and how does this relate to the van't hoff factor?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!