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
Greeley [361]
3 years ago
5

How many moles are in 68 grams of potassium sulfide (K2S)?

Chemistry
1 answer:
luda_lava [24]3 years ago
4 0

Answer:No of moles of potassium sulfide (K2S)=0.61671moles

Explanation:

No of moles is given as   Mass/ molar mass

Here Mass of potassium sulfide (K2S) =68 grams

Molar mass of potassium sulfide (K2S)  = 39.0983 x 2 + 32.065 =110.2616 g/mol

No of moles =68 grams /110.2616 g/mol

=0.61671moles

You might be interested in
Which of the following statements is true?
hammer [34]

Lord dragon you are wrong.

The answer is A: Incandescent light bulbs are almost 100 percent efficient. Because b-d do not make any sense.

8 0
3 years ago
Read 2 more answers
Classify each change as physical or chemical.
trasher [3.6K]

A chemical

B physical

C physical

D Chemical

4 0
3 years ago
What is the answer of these compound
olganol [36]
BaO, Barium Oxide. 

Na2SO4, Sodium Sulfate.

CuO, Copper (II) Oxide.

P2O5, Diphosphorus Pentoxide.

HNO3, Nitric Acid.

CO32-, Molecular Formula. 

Hope this helps. :)
8 0
3 years ago
Two new planets with equal masses are discovered. Planet A is twice as far from the sun as Planet B. Which of the following is t
Sphinxa [80]
I think the answer is <span>B. The sun's gravitational pull on Planet A is equal to its gravitational pull on Planet B because distance does not affect gravity.

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.
</span>
7 0
3 years ago
Read 2 more answers
What does I stand for?
tatuchka [14]
I: Current
V: Voltage
R: resistance
you’re welcome ;)
7 0
3 years ago
Read 2 more answers
Other questions:
  • If the air in a carton of milk was allowed to warm up, what would happen to it?
    8·1 answer
  • Fill In The Blanks:
    5·1 answer
  • In the following reaction, how many grams of oxygen will react with 10.47 grams of benzene (C6H6)? 2C6H6 + 1502 12CO2 + 6H2O The
    8·1 answer
  • How many moles are in 8.0 x 10^13 atoms of Ag?<br>explain please ​
    14·1 answer
  • A water solution whose pH is 4_______. a. is always neutral b. is always acidic c. is always basic d. might be neutral, basic or
    14·2 answers
  • Which of these elements has four total electrons in its outer p orbitals?
    6·2 answers
  • 20points
    10·2 answers
  • Plssss help asapp<br> will give brainliest!!!
    5·1 answer
  • What is the difference between heat of formation and heat of reaction? Give examples and units
    7·1 answer
  • What is the new volume of a 61 L sample at STP that is moved to 183 K and 0.60 atm?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!