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
vivado [14]
3 years ago
6

Determine the number of moles of the anhydrous salt present after heating, assuming that the contents of the aluminum cup after

heating are pure anhydrous KAl(SO 4 ) 2 .
Chemistry
1 answer:
lara31 [8.8K]3 years ago
6 0

Answer:

0.2 moles, assuming weight of dried salt

Explanation:

In order to determine the number of moles, we need to be aware of the mass of the substance in question.

Assuming the mass of the dehydrated KAl(SO_{4} )_{2}.H_{2} O is 50g.

No. of moles = mass of substance/ molar mass of the substance.

= \frac{50g}{39+27+32*2+16*4*2\\)g/mol}

= 0.2 moles moles.

You might be interested in
PLEASE HELP ME THIS IS DUE RN I HAVE NO IDEA I WILL MARK BRAINLIEST I JUST NEED HELP
djverab [1.8K]

Answer:

3.45 × 10^5

=3.45^5

I hope this helps

6 0
3 years ago
Balanced equation and net ionic equation for sodium phosphate and potassium nitrate
stepladder [879]
This reaction does not exist since all of the reactants and products are aqueous.
6 0
3 years ago
What about Kevlar makes it so strong? (1 point)
vfiekz [6]

I believe the answer is (B) as molten Kevlar when spun into fiber, its polymers have a crystalline arrangement.

Hope that helped!

7 0
2 years ago
How could getting so much food from<br> the ocean negatively impact marine<br> ecosystems?
kumpel [21]
Marine food chains at risk of collapse, extensive study of world's oceans finds. ... The acidification of the ocean, where the pH of water drops as it absorbs carbon dioxide, will make it hard for creatures such as coral, oysters and mussels to form the shells and structures that sustain them.
7 0
3 years ago
The products of a combustion reaction do NOT include ____. (1 point) water carbon dioxide carbon monoxide hydrogen The products
nalin [4]

the answer is water

Hope this help1

7 0
3 years ago
Read 2 more answers
Other questions:
  • The human body can get energy by metabolizing proteins, carbohydrates or fatty acids, depending on the circumstances. Roughly sp
    15·1 answer
  • If light has a frequency of 2.4 x 10 to the 14th Hz what is it’s wavelength?
    12·1 answer
  • A chemical test has determined the concentration of a solution of an unknown substance to be 2.41 M. a 100.0 mL volume of the so
    9·1 answer
  • What mass of iron is needed to react with sulfur in order to produce 96 grams of
    12·2 answers
  • When the frequency of a wave increases, what happens to the wavelength?
    10·2 answers
  • The use of genetics by farmers to produce more abundant and healthier crops is an application of the science of _____.
    10·2 answers
  • Discuss three evidences that confirm that air is a mixture and not a compound​
    15·1 answer
  • Please help me with my question ​
    11·2 answers
  • What is the law that ensures that chemical reactions are balanced?
    11·1 answer
  • A chemist wants to extract copper metal from copper chloride solution. The chemist places 1.50 grams of aluminum foil in a solut
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!