All categories

3 years ago

How many colors would you see if you were analyzing a pure substance through chromatography?

Chemistry

2 answers:

harina [27]3 years ago

4 0

Answer :

The correct answer is no color will observed if a pure substance is analyzed ,

Chromatography :

It is a technique commonly used to separate a mixture of chemical substances based on their affinity with stationary phase and mobile phase .

The mobile phase travels through the stationary phase in a definite direction . The component of mixture travels along with mobile according to their affinity , ionic interactions , diffusion , solubility on stationary phase .

The component has more affinity with mobile phase goes higher with mobile phase .

While component with stationary phase remain at lower position on stationary phase .

This is how separation of components takes place.

A pure substance has only one type of component in it . There is no mixture of components.

Hence when pure substance will be analyzed by chromatography technique, there will be no separation of components .

So there will no color be observed.

AfilCa [17]3 years ago

3 0

For separation of components of mixture chromatography technique is used. Parts of mixture are separated by using the different solubilities of the parts for a stationary phase (that does not move) compared to the mobile phase (that carries the parts). Due to capillary action, the solvent will move up with paper or plate in apparatus. The mobile phase will move with solvent and the stationary phase will remain adhere to the paper or plate. And thus, giving separate colors for the substances present in the mixture.

Hence, for pure substance, only one color would be observed through chromatography.

You might be interested in

Which type of model is a way of imagining how something works?

RUDIKE [14]

Answer:

mental model is an explanation of someone's thought process about how something works in the real world. It is a representation of the surrounding world, the relationships between its various parts and a person's intuitive perception about his or her own acts and their consequences. Mental models can help shape behaviour and set an approach to solving problems (similar to a personal algorithm) and doing tasks.

6 0

3 years ago

Read 2 more answers

MAGNESIUM (Mg) +FLUORINE (F) =

bazaltina [42]

Answer:

MgF2 magnesium fluoride

4 0

3 years ago

A gas has a pressure of 3.16 atm at STP. I have decided to transfer it to a container that is 3 times larger than the original v

Oliga [24]

Answer:

The new pressure is 1.0533 atm

Explanation:

According to Boyle's Law : The Pressure of fixed amount of gas is inversely proportional to Volume at constant temperature.

PV = Constant

P1V1 = P2V2

$P_{1}V_{1}=P_{2}V_{2}$ .....(1)

P1 = 3.16 atm

Accprding to question ,

V1 = V

V2 = 3 V

Insert the value of V1 , V2 and P1 in the equation(1)

$P_{1}V_{1}=P_{2}V_{2}$

$3.16\times V=P_{2}\times 3V$

V and V cancel each other

$3.16=P_{2}\times 3$

$P_{2}=\frac{3.16}{3}$

$P_{2}=1.05atm$

5 0

3 years ago

A student was asked to prepare 500.0 mL of 6.0 M NaOH. The student measured 120.0 g of NaOH and placed it in a 1000 mL beaker. T

Morgarella [4.7K]

Answer:

The concentration of the solution will be much lower than 6M

Explanation:

To prepare a solution of a solid, the appropriate mass is taken and accurately weighed in a weighing balance and then made up to mark with distilled water.

From

n= CV

n = number of moles m/M( m= mass of solid, M= molar mass of compound)

C= concentration of substance

V= volume of solution

m=120g

M= 40gmol-1

V=500ml

120/40= C×500/1000

C= 120/40× 1000/500

C=6M

This solution will not be exactly 6M if the student follows the procedure outlined in the question. The actual concentration will be much less than 6M.

This is because, solutions are prepared in a standard volumetric flask. Using a 1000ml beaker, the student must have added more water than the required 500ml thereby making the actual concentration of the solution less than the expected 6M.

7 0

3 years ago

Choose the correct simplification of x^12z^11/x^2z^4

PolarNik [594]

━━━━━━━☆☆━━━━━━━

▹ Answer

x¹⁰z¹⁵

▹ Step-by-Step Explanation

x¹²z¹¹/x²z⁴

Reduce

x¹⁰z¹¹ * z⁴

Calculate

x¹⁰z¹⁵

Hope this helps!

- CloutAnswers ❁

Brainliest is greatly appreciated!

━━━━━━━☆☆━━━━━━━

5 0

3 years ago