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
morpeh [17]
3 years ago
15

Identify which one of the three methods of analysis (i.e., TLC, IR and melting point) provides information about the structure o

f an unknown compound. Explain why structural information cannot be obtained using the other two met
Chemistry
1 answer:
Alex787 [66]3 years ago
6 0

Answer:

IR provides structural information about a molecule. TLC and melting point analysis do not provide structural information.

Explanation:

IR gives information about the functional groups present in a molecule. The vibrational frequency of each functional group gives information about the structure of the entire molecule.

Structural features of a molecule are deduced by matching the vibrational frequencies of  groups obtained from the IR spectroscopy with that of known functional groups in literature.

Melting point is a qualitative method that can only yield information about the identity of a compound and not its structure. Each compound has its unique melting point recorded in literature and any pure sample of the same compound must have the same sharp meting point.

Thin-layer chromatography (TLC) is a chromatography technique used to separate non-volatile mixtures. After separating the components of the mixture, it does not give any information regarding the identity or the structure  of the components of the mixture.

Therefore, only IR yields structural information about a sample.

You might be interested in
Is it wierd if i think my step sis is thick
iren2701 [21]

Answer:

yes it is and sometimes it's not

8 0
2 years ago
Read 2 more answers
A horizontal row of the periodic table is usually referred to as a ____________
zaharov [31]

the answer is period

8 0
3 years ago
Read 2 more answers
Using the periodic table as a reference, which elements could bond to form a compound most like NaCl?
pychu [463]

<u>step</u><u> </u><u>by</u><u> </u><u>step</u>

Na(sodium)=2.8.1

Cl (Chlorine)=2.8.7. sodium will give the chlorine the 1 valence electron to become stable ions.

<u>a</u><u>n</u><u>s</u><u>w</u><u>e</u><u>r</u>

<u>p</u><u>o</u><u>t</u><u>t</u><u>a</u><u>s</u><u>i</u><u>u</u><u>m</u><u>. </u><u>(</u><u>2</u><u>.</u><u>8</u><u>.</u><u>8</u><u>.</u><u>1</u><u>)</u><u> </u><u>a</u><u>n</u><u>d</u><u> </u><u>F</u><u>l</u><u>o</u><u>u</u><u>r</u><u>i</u><u>n</u><u>e</u><u>(</u><u>2</u><u>.</u><u>7</u><u>)</u>

4 0
3 years ago
18.2L of gas at 95°C and 760 torr is placed in a 15L container at 80 degrees * C ; what is the new pressure ?
romanna [79]

Answer:

884.56 torr

Explanation:

Formula: \frac{P_{1}V_{1} }{T_{1}} = \frac{P_{2}V_{2} }{T_{2}}

P = Pressure

V = Volume

T = Temperature in kelvin (Celsius + 273.15)

\frac{(760)(18.2) }{368.15} = \frac{P(15) }{353.15}

P = \frac{(760)(18.2)(353.15) }{(368.15)(15)}

P = 884.56169

4 0
3 years ago
What is the formula of the compound that occurs when Strontium and Chlorine combine<br> ionically?
Olenka [21]

Answer:

SrCl2

Explanation:

5 0
2 years ago
Other questions:
  • Select all that apply. Which of the following statements are true? Significant figures are an indicator of the certainty in meas
    7·2 answers
  • N2 oxidation number of element<br><br>​
    7·1 answer
  • If two poisonous elements are combined chemically, which of the following will be true of the resulting compound?
    14·2 answers
  • In the same class two students find that a piece of wood with a mass of 70g has a volume of 103 cm3 they conclude the wood is oa
    6·1 answer
  • Which is the best analogy of a wave?
    5·2 answers
  • Imagine you pour some hot soup into a bowl. You place your hands on the outside of the bowl and feel that the bowl is very warm.
    14·1 answer
  • Which of the following describes how microorganisms influence the chemical characteristic of soil
    6·1 answer
  • The concentration of hydrogen peroxide (H2O2) can be determined by titrating it with an acidified MnO4− solution. The following
    11·1 answer
  • Using the information make a graph.
    11·1 answer
  • The vapor pressure of ethanol at 25 Celsius is 0.0773 atm. Calculate the vapor pressure in mmHg and torr. Round each of your ans
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!