Question

1) Explain why some substances move up the stationary pase in a chromatographic experiment faster than...

1) Explain why some substances move up the stationary pase in a chromatographic experiment faster than others.

2) Describe how the rate of movement of a substance in a chromatography experiment can be used to identify the substance.

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

1> In chromatographic experiment some substance move up the stationary phase becoz- it depends upon the polarity of the substance . If a perticular substance is less polar than the eluting solvent then it moves up at very faster rate whereas if a substance has relatively comparable polarity W.r.t eluting solvent then it moves slowly upwards.

2> If your product is more polar than the starting material then it moves slowly in the stationary phase and as a result you will gate a spot lower than your starting material . thereby you can identify the product of your reaction.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
ASAP Sketch a molecular level drawing (showing WHY some pigments move faster than others by showing...
ASAP Sketch a molecular level drawing (showing WHY some pigments move faster than others by showing interactions between the mobile phase and the stationary phase) that clearly illustrates your understanding of Thin Layer Chromatography. DO NOT INCLUDE ANY WRITTEN EXPLANATION. For TLC LAB.
1.) Why do some objects fall faster than others near the surface of the earth if...
1.) Why do some objects fall faster than others near the surface of the earth if all mass is attracted equally by the force of gravity? A. Some objects fall faster because of air resistance, which acts in the direction of the motion of the object and exerts more force on objects with less surface area. B. Some objects fall faster because of air resistance, which acts in the direction opposite the motion of the object and exerts more force...
1- Discuss some of the features hindering developing countries from growing faster. 2- Describe alternative forms...
1- Discuss some of the features hindering developing countries from growing faster. 2- Describe alternative forms of capital inflow to finance external deficits and explain why these methods were used in different times? 3- Given your personal knowledge and impressions, do you think that technological progress will increase or decrease inequalities? Why? Discuss
1. a) 2-Chlorobutane should have reacted faster in EtOH/water than in EtOH alone. Explain why. b)...
1. a) 2-Chlorobutane should have reacted faster in EtOH/water than in EtOH alone. Explain why. b) Do you think this reaction would proceed more quickly or more slowly using THF as the reaction solvent? Why?
1. Explain how energy can move spontaneously from a system of low total energy to a...
1. Explain how energy can move spontaneously from a system of low total energy to a system of higher total energy. 2. Why is it more common to think of temperature as being related to the rate of change of energy with respect to entropy than it is to think of it as being related to the rate of change of entropy with respect to energy?
children are confronted with a multitude of challenges as they grow up. Explain why some children...
children are confronted with a multitude of challenges as they grow up. Explain why some children are able to overcome chronic adversity while fall victims to its effects. What skills appear to make some children more resilient and how can teachers and families foster these qualities ?
Why do you think that some people show more self-control than others? How would we explain...
Why do you think that some people show more self-control than others? How would we explain this from a behavioral perspective (remember, think "environment", think "learning" - not character flaws)?
1. Explain how the Fed influences the equillibrium fed funds rate to move toward its target...
1. Explain how the Fed influences the equillibrium fed funds rate to move toward its target rate. 2. Explain why the Fed was generally so ineffective before the late 1980s. 3. Define inflation targeting and explain its importance.
1) explain how a nonpolar molecule like bromine can act as an electrophile? 2) why does...
1) explain how a nonpolar molecule like bromine can act as an electrophile? 2) why does performing some of the SE2 reactions at 0 degrees Celsius allow you to identify the order of reactivity more definitively?
1. Explain why a titration can be used to determine the percent by mass of acetic...
1. Explain why a titration can be used to determine the percent by mass of acetic acid in the vinegar and the molecular mass of an unknown acid? 2. Why would it be important to know the molecular mass of an unknown acid in the experiment?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT