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
Neko [114]
3 years ago
6

Oxygen gas can be prepared by heating potassium chlorate according to the following equation:

Chemistry
1 answer:
Cerrena [4.2K]3 years ago
4 0

Moles KClO₃ = 0.239

<h3>Further explanation</h3>

Given

Reaction

2KClO₃(s) ⇒2KCl(s) + 3O₂(g)

P water = 23.8 mmHg

P tot = 758 mmHg

V = 9.07 L

T = 25 + 273 = 298 K

Required

moles of KClO₃

Solution

P tot = P O₂ + P water

P O₂ = P tot - P water

P O₂ = 758 - 23.8

P O₂ = 734.2 mmHg = 0.966 atm

moles O₂ :

n = PV/RT

n = 0.966 x 9.07 / 0.082 x 298

n = 0.358

From equation, mol ratio KClO₃ : O₂ = 2 : 3, so mol KClO₃ :

= 2/3 x mol O₂

= 2/3 x 0.358

= 0.239

You might be interested in
What is the new volume when the pressure of 20 milliliters of an ideal gas decreases from 202 kPA to 101 kPA?
Lana71 [14]

Ideal Gas Law Formula.

Brainliest?

6 0
3 years ago
How many calories are required to heat 867 g of water from 13°c to 87°c?
skelet666 [1.2K]
64158 calories is required
5 0
4 years ago
how does a substances temperature change when the average kinetic energy of its particles increases and they decrease
alukav5142 [94]
Temperature is a measure of the energy of moving particles, so if the average kinetic energy is increasing, then the temperature would increase as well. 
6 0
3 years ago
a minute sample of AlCl3 is analyzed for chlorine.The analysis reveal that there are 12 chloride ions present in the sample. How
nekit [7.7K]
You can solve this by saying that there are 3 Cl for every 1 Al therefore a ratio of 1:3. If you have 12 Cl ions you can find how many Al ions there is
so (x)Al : 12 a unkown amount of Al ions gives you 12 Al ions from the ratio we know that we have 1 Al for 3 Cl therefore we can divide 12 by 3 to get the number of Al ions. The answer is 4 Al ions for 12 Cl ions.
Hope this helps :).
7 0
3 years ago
Which of these are methods of separating a solid from a liquid?
Aleks [24]

Answer:

a)decanting,filtering,and evaporating.

7 0
3 years ago
Read 2 more answers
Other questions:
  • What intermolecular force is responsible for the fact that ice is less dense than liquid water? what intermolecular force is res
    8·1 answer
  • a sample of CO2 occupies a volume of 280ml at a pressure of 1.3 atm and a temperature of 18 degrees celsius, what volume will th
    7·1 answer
  • Which of the following statements best explains the observation that hydrogen fluoride has the highest boiling point of all the
    13·1 answer
  • Periodic Law Directed Reading
    8·2 answers
  • : A Ne gas sample has a pressure of 1.20 atm and volume of 35.6 L at 27.0ºC. What is the sample volume if the pressure changes t
    10·1 answer
  • How many atoms are there in 15.0 grams of Sulfur (S)?
    6·1 answer
  • The nucleus of an atom is ______ charged
    12·1 answer
  • Hows ur guys day??????????????????????????????????????????????????????????????????????????
    12·2 answers
  • 3.
    12·1 answer
  • Liquids have a definite volume when poured into a container. What does this mean?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!