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
prohojiy [21]
2 years ago
10

The heat of fusion ΔHf of ethyl acetate C4H8O2 is 10.5 /kJmol. Calculate the change in entropy ΔS when 95.g of ethyl acetate fre

ezes at −84.0°C. Be sure your answer contains a unit symbol. Round your answer to 2 significant digits.
Chemistry
1 answer:
leonid [27]2 years ago
8 0
Picture? Of the problem
You might be interested in
When the following reaction is completed and written in the form of a net ionic equation, which of the following elements will N
Alex Ar [27]

Answer:

d. N

Explanation:

Chemical equation:

Pb(NO₃)₂(aq)  + K₂SO₄(aq)  →  PbSO₄(s) + KNO₃(aq)

Balanced Chemical equation:

Pb(NO₃)₂(aq)  + K₂SO₄(aq)  → PbSO₄(s) + 2KNO₃(aq)

Ionic equation:

Pb²⁺(aq) + 2NO₃⁻(aq)  + 2K⁺(aq) + SO₄²⁻(aq)  → PbSO₄(s) + 2K⁺(aq) + 2NO₃⁻(aq)

Net ionic equation:

Pb²⁺(aq) + SO₄²⁻(aq)  → PbSO₄(s)

The NO₃⁻(aq) and K⁺(aq)are spectator ions that's why these are not written in net ionic equation. The PbSO₄ can not be splitted into ions because it is present in solid form.

Spectator ions:

These ions are same in both side of chemical reaction. These ions are cancel out. Their presence can not effect the equilibrium of reaction that's why these ions are omitted in net ionic equation.  

4 0
2 years ago
Module 2 dba for chemistry questions? flvs
NeX [460]
Can you translate to english?

4 0
3 years ago
When a sample of liquid is heated, its thermal energy _______.
Ratling [72]

Answer:

Entropy.

Explanation:

I really hope this is right! sorry if its wrong

4 0
2 years ago
Please help me with these Radioactive Decay Problems ASAP! I need helppppp
Masteriza [31]

Answer:

5

Explanation:

it is very simple

5 0
2 years ago
How does soil structure affect the characteristics of soil? a. It determines the acidity of soil. b. It determines the available
7nadin3 [17]

Answer:

B

Explanation:

Soil structure affects water and air movement in a soil, nutrient availability for plants, root growth, and microorganism activity. ... This allows for greater air and water movement and better root growth.

4 0
3 years ago
Other questions:
  • Choose the false statement.
    10·1 answer
  • Explain the difference between passive transport and active transport
    5·1 answer
  • Animals return water to the air through:
    8·2 answers
  • A sample of tin contains 1.03 x 1023 atoms.  The mass of the sample is
    14·1 answer
  • Which solution has the lowest pH? A. 1.0 M HNO2 B. 1.0 M CH3COOH C. 1.0 M HCOOH D. 1.0 M HNO3 E. 1.0 M HPO4–
    14·2 answers
  • What is true of Clydesdale and thoroughbred horses?
    13·2 answers
  • What is the charge on an electron?<br> O-1<br> O 0<br> O +1<br> O +2
    6·1 answer
  • When heated strongly, copper metal incorporates oxygen to form one of the copper oxides from the last problem. In one experiment
    12·1 answer
  • The correlation between the amount of carbon dioxide and the plants growing is, as the plants are growing the carbon dioxide lev
    12·1 answer
  • The model represents how electromagnetic radiation transmits energy.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!