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
gavmur [86]
3 years ago
9

A student is asked to seperate two liquids. Liquid A boils at 100°c and liquid B boils at 65°c. The student sets up a fractional

distillation experiment, and after a few minutes a clear liquid is collected from the condenser. Explain which of the two liquids will be collected first. ( 2 marks). ​
Chemistry
1 answer:
julsineya [31]3 years ago
3 0

Answer:

B

Explanation:

because B has a lower bp it needs less time and energy to turn into vapour and is collected into the condenser first

You might be interested in
What has to happen to a substance in order for you to observe it’s chemical properties
nydimaria [60]
U must burn it
or
Make it under go chemical treatment
5 0
3 years ago
Which factor does not influence stream velocity
baherus [9]
The factor that does not influence stream velocity is DISCHARGE.
Stream velocity refers to the speed with which the water in a stream is flowing. The factors which affect stream velocity include channel size, channel shape, turbulent flow and gradient.
3 0
3 years ago
Read 2 more answers
What is true of all eukaryotic organisms?
Basile [38]

Answer:

They are multicelled

Explanation:

I just did a quiz on it UwU

4 0
3 years ago
Which choice below would affect the rate of reaction in the opposite way from the other four?
bulgar [2K]
Adding a catalyst as this would speed up the reaction and the rest would slow it down
4 0
3 years ago
The pKa of chloroacetic acid is 2.9. If an organic chemist has a 0.10 M aqueous solution of chloroacetic acid at pH 2.4, what pe
Trava [24]

Answer:

The answer is given below.

Explanation:

We will consider the acid as HA and will set up an ICE table with the equilibrium dissociation of α.

AT pH 2.4 the initial H+ concentration will be 3.98^10-3 M

                      HA →              H+         +      A-

Initial concentration:  0.1    →  3.98 ^10-3       +      0

equilibrium concentration:  0.1(1-α) →   3.98 * 10-3 + 0.1α              0.1α

pKa of chloroacetic acid is 2.9

-log(Ka) = 2.9

Ka = 1.26 * 10-3

From the equation, Ka = [H+] * [A-] / [HA]

1.26 * 10-3 = (3.98 * 10-3 + 0.1α )* 0.1α / 0.1(1-α)      

Since α<<1, we assume 1-α = 1

Solving the equation, we have: α = 0.094

Since this is the fraction of acid that has dissociated, we can say that % of base form = 100 * α= 9.4%

6 0
3 years ago
Other questions:
  • How many electrons should be shown in the lewis symbol for hydrogen?
    12·1 answer
  • What would you need to find an objects mass and velocity? what tools would you ude?
    10·1 answer
  • Which of the following ions would represent the ion of an element from Group 2A?
    7·2 answers
  • What does X represent for this transmutation?
    12·1 answer
  • Determine the number of unpaired electrons expected for [Fe(NO2)6]3−and for [FeF6]3− in terms of crystal field theory.
    13·1 answer
  • Which major product is formed when Br2 and H2O are added to 2-methylpropene to give the bromohydrin?
    12·1 answer
  • Which of the following statements correctly describes the characteristics of the surface features in Column A and Column B?
    14·1 answer
  • How many particles are in 2.5 mol of water, H2O?
    15·2 answers
  • 7. If you start with 3.20 mol of Li3N and 9.0 mol water, how many moles of NH3 will be formed?
    9·1 answer
  • What is Racemic mixture?​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!