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
kaheart [24]
3 years ago
15

Which of the following is a list of the minimum amount of data needed for determining the molar enthalpy of solution of KCl(s) i

n pure H2O(1) ? (Assume that the KCl(aq) has the same specific heat capacity as pure water and that the initial temperatures of the KCl(s) and the water are the same.)
(A) Mass of KCl(s), initial temperature of the water, and final temperature of the solution
(B) Mass of H20, initial temperature of the water, and final temperature of the solution
(C) Mass of KCl(s), mass of H20, initial temperature of the water, and final temperature of the solution
(D) Mass of KCl(s), mass of H20, initial temperature of the water, final temperature of the solution, and atmospheric pressure
Chemistry
1 answer:
Gre4nikov [31]3 years ago
3 0

Answer:

 (C) Mass of KCl(s), mass of H20, initial temperature of the water, and final temperature of the solution

Explanation:

molar enthalpy of solution of KCl(s) is heat evolved or absorbed when one mole of KCl is dissolved in water to make pure solution . The heat evolved or absorbed can be calculated by the following relation.

Q = msΔt where m is mass of solution or water , s is specific heat and Δt is change in temperature of water .

So data required is mass of water or solution , initial and final temperature of solution , specific heat of water is known .

Now to know molar heat , we require mass of solute or KCl dissolved to know heat heat absorbed or evolved by dissolution of one mole of solute .

You might be interested in
Select all that apply. Using your periodic table of the elements which chemical symbols indicate an element?
tatuchka [14]

Answer:

O, I, Ca

Explanation:

4 0
3 years ago
. All waves have a similar
Setler [38]

Answer:

They all have the same fundamental properties of reflection

5 0
2 years ago
Read 2 more answers
What kind of water is required for photosynthesis to occur?
Delvig [45]
Solar Energy is the answer
5 0
3 years ago
Read 2 more answers
Which statement best describes how two hydrogen atoms combine to form molecular hydrogen (H2)?
dimaraw [331]
Nope, its A i just took the test
<span>Two neutral hydrogen atoms share electrons in a covalent bond.
</span>
8 0
3 years ago
The use of genetics by farmers to produce more abundant and healthier crops is an application of the science of _____.
Klio2033 [76]
<h3>Question :</h3>

The use of genetics by farmers to produce more abundant and healthier crops is an application of the science of _____.

  • DNA profiling

  • biotechnology

  • molecular biology

  • nuclear genetics

<h3>Answer :</h3>

The use of genetics by farmers to produce more abundant and healthier crops is an application of the science of <u>biotechnology</u>.

So correct option is 2nd biotechnology.

<h3>Explanation :</h3>

Biotechnology is the use of biological structures and processes for useful industrial purposes, whether product or function.

5 0
2 years ago
Read 2 more answers
Other questions:
  • At what temperature will 0.100 molal (M) NaCl(aq) boil? <br> Kb= 0.51 C kg mol^-1
    11·1 answer
  • P 4 , KF, C 6 H 6 and Br 2 , which substance most likely has ionic<br> bonding?
    9·1 answer
  • According to the kinetic-molecular theory of gases, molecules of an ideal gas
    11·1 answer
  • #12, how do I solve this
    9·1 answer
  • What can scientists learn from index fossils?
    11·1 answer
  • How do we use natural resources?
    8·2 answers
  • D
    8·1 answer
  • How many grams of carbon dioxide gas are in a 1.0 L balloon at STP?
    11·1 answer
  • A change in temperature causes a change in density. \<br> True False
    15·2 answers
  • What can you say about the reactants of photosynthesis and the products of cellular respiration?​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!