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
denpristay [2]
3 years ago
9

In the technique of recrystallization, what is the 'mother liquor'? The mother liquor is the product in its liquid form. The mot

her liquor is always the non-limiting reactant in the reaction. The mother liquor is the filtrate. The mother liquor always refers to ethanol.
Chemistry
1 answer:
Yakvenalex [24]3 years ago
3 0

In the technique of recrystallization "the mother liquor is the filtrate".

<u>Option: </u>C

<u>Explanation:</u>

The portion of a solution remaining over after crystallization is understood as a mother liquor. It is found in chemical reactions that include sugar refining. It is the liquid produced by filtration of the crystals. The residual liquid, once the crystals have been extracted out as the mother liquor will include a portion of the initial solution as estimated at that temperature by its solubility as well as any unfiltered contaminants. Second and third crystal crops can then be collected from the mother's liquor.

You might be interested in
A girl has a weight of 450 N and her feet have a total area of 300Cm2
snow_tiger [21]

Answer:

15000N/m²

Explanation:

Given parameters:

Force exerted by the girl  = 450N

Area  = 300cm²

Unknown:

Pressure exerted by her feet  =?

Solution:

Pressure is the force per unit area on a body;

    Pressure  = \frac{force }{area}

We need to convert the given area to m²;

        10000cm²   =  1m²

        300cm²  = \frac{300}{10000}   = 0.03m²

Pressure = \frac{450}{0.03}   = 15000N/m²

8 0
3 years ago
What is the identity of a metal that has a mass of 27.0 g and a volume of 10.0 cm3?
dexar [7]

The identity of a metal that has a mass of 27.0g and a volume of 10.0cm is Aluminium. That is option B.

<h3>What is molar mass?</h3>

Molar mass is defined as the mass in grams of one mole of an element. This is measured in grams/mole of that substance.

The metal that is 27.0 g and a volume of 10.0 cm3 is aluminium because aluminium is 27 times heavier than 1/12th of the mass of carbon-12 atom.

Therefore, the identity of a metal that has a mass of 27.0g and a volume of 10.0cm is Aluminium.

Learn more about molar mass here:

brainly.com/question/837939

#SPJ1

6 0
1 year ago
Bronze is an alloy, which is what form of matter?
grandymaker [24]
It is a Compound. have a nice day
3 0
3 years ago
Read 2 more answers
What is the definition of <br> incandescence?
Vilka [71]

Answer:

the emission of visible light by a body, caused by its high temperature.Compare luminescence.

the light produced by such an emission.

the quality of being incandescent.

5 0
2 years ago
I wanted known how many of the reaction below is energy released
Tema [17]

Answer:

2

Explanation:

In two reactions energy is released.

1) C₆H₁₂O₆ + 6O₂    →    6H₂O + 6CO₂ + heat

It is cellular respiration reaction.It involves the breakdown of glucose molecule in the presence of oxygen to yield large amount of energy. Water and carbon dioxide are also produced as a byproduct.

Glucose + oxygen → carbon dioxide + water + 38ATP

2) 2H₂ + O₂   →    2H₂O  ΔH = -486 kj/mol

The given reaction is formation of water. In this reaction oxygen and hydrogen react to form water and 486 kj/mol is also released.

The reaction in which heat is released is called exothermic reaction.

Exothermic reaction:

The type of reactions in which energy is released are called exothermic reactions.

In this type of reaction energy needed to break the bonds are less than the energy released during the bond formation.

For example:

Chemical equation:

C + O₂   →  CO₂

ΔH = -393 Kj/mol

it can be written as,

C + O₂   →  CO₂ + 393 Kj/mol

Endothermic reactions:

The type of reactions in which energy is absorbed are called endothermic reactions.

In this type of reaction energy needed to break the bond are higher than the energy released during bond formation.

For example:

C + H₂O   →  CO  + H₂

ΔH = +131 kj/mol

it can be written as,

C +  H₂O  + 131 kj/mol  →  CO  + H₂

5 0
3 years ago
Other questions:
  • Which element has the lowest ionization energy?
    6·2 answers
  • What will be the kinetic energy change of the ram of a pile driver when it suddenly undergoes a 10 kJ decrease in potential ener
    5·1 answer
  • Which statement best describes the process of making a solution by diluting a stock solution?
    7·2 answers
  • The molar solubility of magnesium carbonate Mg(CO3) is 1.8 x 10-4 mol/L. What is the Ksp for this compound?
    6·1 answer
  • What is the difference between ionic and covalent bonding?
    15·1 answer
  • The concentration of a solute in a solution is greater than the maximum concentration that is predicted from the solute's solubi
    12·1 answer
  • Pomocy zadanie na jutro chemia czesc 1 str 71 zadania 48 i 49
    6·1 answer
  • The energy of a wave will remain constant if which of the following changes are made to it?A The wavelength is cut in half, and
    14·1 answer
  • How many miles per second can sound move???
    6·1 answer
  • 1. After clamping a buret to a ring stand, you notice that the set-up is tippy and unstable. What should you do to stabilize the
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!