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
Naddik [55]
3 years ago
5

What is the freezing point of a .743 m aqueous solution of KCl

Chemistry
1 answer:
marysya [2.9K]3 years ago
3 0

Change in freezing point = -1.86 C/m X 0.743 m X 2 = -2.76 C

You might be interested in
3. True or False: White light is a mixture of all colors of the visible
Len [333]

it's true ....

plz mark my answer as brainlist plzzzz vote me also

8 0
3 years ago
Read 2 more answers
The coefficient of performance (cop) of a refrigerator is defined as the ratio of?
Vinvika [58]

The coefficient of performance (cop) of a refrigerator is defined as the ratio of " the work necessary to heat or cool something usefully."

The usable heating or cooling delivered to work required ratio, also known as the coefficient of performance, or COP, of a heat pump, refrigerator, as well as air conditioning system. Higher efficiency, less energy (power) usage, and thus reduced operational costs are all related to higher COPs.

Coefficient of performance formula:

K = Q_{H} / W_{in}

where, K = Coefficient of performance, Q_{H} = heat of pumps output, W_{in} = work required by the system.

It is refrigeration's coefficient of performance (COP) will always be greater than 1.

Therefore, the coefficient of performance (cop) of a refrigerator is defined as the ratio of " the work necessary to heat or cool something usefully."

To know more about  coefficient of performance

brainly.com/question/14058512

#SPJ4

3 0
2 years ago
Please please help me please please help please please help me please please help please please
Tatiana [17]

Answer:

AU9NJ-BLVHV-TCLJS-54YTB

6 0
3 years ago
If thermal energy (heat) must be added to a chemical reaction in order for the reaction to take place, the reaction is _________
Harlamova29_29 [7]
<span>If thermal energy (heat) must be added to a chemical reaction in order for the reaction to take place, the reaction is endothermic. </span>
7 0
3 years ago
Explain using balanced chemical equations, the alkaline hydrolysis reaction of esters. ​
ser-zykov [4K]

Answer:

The alkaline hydrolysis of ester is known as saponification. When ester is heated with aqueous NaOH, sodium salt of acid and alcohol are formed.

3 0
3 years ago
Other questions:
  • A student buys a rope at the store. The label on the packaging says that the rope is 2.15 meters in length. The student measures
    14·1 answer
  • . A piece of chamber music for nine players is known as a
    9·1 answer
  • What is the molarity of a solution in which 58g of nacl are dissolved in 1.0 l of solution
    10·1 answer
  • Which substance acts as the anode in the lead-acid automobile battery?
    15·1 answer
  • Draw the lewis structure for the polyatomic trisulfide s−23 anion. be sure to include all resonance structures that satisfy the
    9·1 answer
  • Which of the following choices tells a computer how to preform a certain task?
    10·1 answer
  • Hi friends!!!!!!!!!!!​
    5·2 answers
  • A gene is being copied to be passed from a parent to an offspring. While being copied from the parent, a
    12·1 answer
  • Can someone do my watershed project ill give brainly and 80 points
    9·1 answer
  • The overall equation for the electrolysis of aluminium oxide is:
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!