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
Serga [27]
3 years ago
15

How many moles of compound are there in the following?

Chemistry
1 answer:
slavikrds [6]3 years ago
8 0

a) (NH4)2SO4 --- 1 mole of it contains 2 moles of N, 8 moles of H, 1 mole of S, and 4 moles of O.

MM = (2 moles N x 14.0 g/mole) + (8 moles H x 1.01 g/mole) + (1 mole S x 32.1 g/mole) + (4 moles O x 16.0 g/mole) = 132 g/mole.

6.60 g (NH4)2SO4 x (1 mole (NH4)2SO4 / 132 g (NH4)2SO4) = 0.0500 moles (NH4)2SO4

b) The molar mass for Ca(OH)2 = 74.0 g/mole, calculated like (NH4)2SO4 above.

4.5 kg Ca(OH)2 x (1000 g / 1 kg) x (1 mole Ca(OH)2 / 74.0 g Ca(OH)2) = 60.8 moles Ca(OH)2

You might be interested in
If approximately equal volumes of an acid and a base of equal strengths are combined, the resulting solution should have a pH of
Masja [62]

Answer : The resulting solution will have a pH of 7.

Explanation:

Whenever acid and base reacts with each other to form water molecule is called Neutralization reaction. This water molecules is formed from the  hydronium ion (H^+) from acid and hydroxide ion(OH^-) from base.

When the equal volumes of acid and base of equal strength are combined, the resulting pH of the solution becomes 7.

The pH 7 value means that the solution is neutral.

4 0
3 years ago
Read 2 more answers
Signals that are the same or similar to their original energy source.
dmitriy555 [2]
なたはたさたやたはたはたはたはやはたはたなたな田畑な田畑の
6 0
2 years ago
Read 2 more answers
I messed up Èeeeeeeeeeeeeeeeeeeee
Triss [41]

Answer:

o

Explanation:

6 0
1 year ago
I’m not sure on this!!!
Talja [164]

Answer:

-14

Explanation:

H=-6

G=7

therefore,

=7(H)+4(G)

=7(-6)+4(7)

=-42+28

=-14

8 0
2 years ago
Read 2 more answers
If you know, answer this. If you don’t know this, don’t second guess
Otrada [13]

Answer:

1 and the element is hydrogen (there is an exception for the octet rule for the element hydrogen) hope this helps

Explanation:

6 0
2 years ago
Other questions:
  • Here is the whole question
    6·1 answer
  • In a mixture of 2 ideal gases, A and B, PA = 0.2PB, what is the mole fraction of A?
    5·1 answer
  • Water is a polar molecule. this means that __________.
    11·1 answer
  • **Help!! **<br> How do I do this question
    6·1 answer
  • Almost all amino acids are chiral. The body only uses L amino acids, and proteins are chains of amino acids that in the most sim
    14·1 answer
  • How many moles of sodium would be needed to react with 3.82 moles of oxygen
    5·2 answers
  • Predict whether carbon dioxide or water would have a higher boiling point. Explain your prediction in terms of the attractions b
    7·1 answer
  • Question: Looking at the above visual of "Atmospheres of the Solar System" What are two patterns
    11·2 answers
  • The molecular formula of a compound is C7H14O7. what is the empirical formula​
    11·1 answer
  • If the equation: FeCl3+O2--&gt;Fe2O3+Cl2, how many moles of chlorine gas can be produced if 4 moles of FeCl3 react with 4 moles
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!