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
garik1379 [7]
3 years ago
13

what was the purpose of running a tlc of ferrocene, the acetylferrocene product mixture, and co-spot (an overlay of ferrocene an

d the product mixture) prior to conducting the column chromatography portion of the experiment?a. All of the belowb. To determine the elution in a chromatography column of the starting material and productsc. To determine if there was starting material still present in the reactiond. To identify the number of products of the reaction
Chemistry
1 answer:
Mademuasel [1]3 years ago
8 0

Answer:

a. All of the below

Explanation:

Column chromatography in chemistry is a chromatography method used to isolate a single chemical compound from a mixture.

TLC can be used to analyze a chemical reaction to determine if the reactants have been consumed and a new product has formed. Running a tlc of ferrocene, the acetylferrocene product mixture, and co-spot, when you view the TLC plate under a UV light, you will notice that acetylferrocene product is on the right-most lane, this shows that the reaction appears to be a success: the higher spot of ferrocene has been consumed), and a new product spot is present. From these we can observe that the we can use this to identify the number of products of the reaction, determine if the starting material is still present in the reaction and the elution in a chromatography column of the starting material and products. Therefore, all the choices are correct.

You might be interested in
Which of these metals would you expect to be found in nature as a deposit of relatively pure element?
lora16 [44]
1. Which of these metals would you expect to be found in nature as a deposit of relatively pure element? The Answer is: Lithium. And question 2 is: <span>Potassium - furthest away from lead in the reactivity series.</span>
7 0
3 years ago
What does lead ii acetate and hydrogen sulfide produce? and what type of reaction is it?
kati45 [8]
When Lead (II) acetate and Hydrogen sulfide react, they form Lead sulfide and Acetic acid. The reaction is a reduction-oxidation (redox) reaction.
The balanced chemical reaction is this:
Pb(C2H3O2)2 + H2S --> PbS + 2C2H4O2
And the net ionic reaction is this:
Pb2+ + S2- --> PbS
5 0
3 years ago
Solutions that can conduct electricity are called .
Misha Larkins [42]

Answer: Electrolyte Solutions

7 0
3 years ago
3 Cu + SHNO3 — 3 Cu(NO3)2 + 2 NO + 4 H20
LenaWriter [7]

Considering the reaction stoichiometry, the mass of H₂O that is produced when 11.9 moles of HNO₃ react is 107.1 grams.

<h3>Reaction stoichiometry</h3>

The balanced reaction is:

3 Cu + 8 HNO₃ → 3 Cu(NO₃)₂ + 2 NO + 4 H₂O

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:  

  • Cu: 3 moles
  • HNO₃: 8 moles
  • Cu(NO₃)₂: 3 moles
  • NO: 2 moles
  • H₂O: 4 moles

The molar mass of the compounds present in the reaction is:

  • Cu: 63.54 g/mole
  • HNO₃: 63 g/mole
  • Cu(NO₃)₂: 187.54 g/mole
  • NO: 30 g/mole
  • H₂O: 18 g/mole

Then, by reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of mass of each compound participate in the reaction:  

Cu: 3 moles ×63.54 g/mole= 190.62 grams

HNO₃: 8 moles ×63 g/mole= 504 grams

Cu(NO₃)₂: 3 moles ×187.54 g/mole= 562.62 grams

NO: 2 moles ×30 g/mole= 60 grams

H₂O: 4 moles ×18 g/mole= 72 grams

<h3>Mass of H₂O produced</h3>

It is possible to determine the the amount of mass of H₂O produced by a rule of three: if by stoichiometry 8 moles of HNO₃ produce 72 grams of H₂O, if 11.9 moles of HNO₃ react how much mass of H₂O will be formed?

mass of H_{2}O=\frac{11.9 moles of HNO_{3} x72 grams of H_{2}O}{8 moles of HNO_{3}}

<u><em>mass of H₂O= 107.1 grams</em></u>

In summary, the mass of H₂O that is produced when 11.9 moles of HNO₃ react is 107.1 grams.

Learn more about reaction stoichiometry:

brainly.com/question/11999193

brainly.com/question/15111313?referrer=searchResults

brainly.com/question/9926203?referrer=searchResults

brainly.com/question/6061451?referrer=searchResults

3 0
2 years ago
Suppose that CO2 in the atmosphere was held at a constant, natural level for a few thousand years. Then, CO2 was added to double
jasenka [17]

Answer: Temperature before the increase in CO_2 was a few degrees lower than temperature after the increase.

Explanation:

According to Charle's Law which states that The volume of gas is directly proportional to the temperature of the gas, when pressure is kept constant.

(Volume)\propto (Temperature)

\frac{volume}{temperature}=constant (At constant Pressure)

With the increase in level CO_2 in atmosphere the increase in temperature of the atmosphere will be observed.

Hence, temperature before the increase in CO_2 was a few degrees lower than temperature after the increase.

7 0
3 years ago
Other questions:
  • You only have 15g of sodium to use for this reaction. how much copper(ii must you combine with the sodium to isolate the maximum
    12·1 answer
  • Plz answer all 3, I will give 5 stars and brainiest!!! :)<br><br> THANKS
    11·1 answer
  • What happened to the arrangement and the speed of water molecules when liquid water turns into ice?
    6·2 answers
  • Which statement best describes how dynamic equilibrium relates to a saturated solution of sodium chloride? The concentration of
    6·2 answers
  • Which element in each pair has atoms with a larger atomic radius?
    11·1 answer
  • Which factor contributes most to the size of an atom? the atom's number of protons the atom's number of neutrons the atom's numb
    10·1 answer
  • I’m second guessing myself here...
    7·1 answer
  • Two balls of equal size are dropped from the same height from the roof of a building. One ball has twice the mass of the other.
    14·1 answer
  • What are the Golgi body and Endoplasmic Reticulum both responsible for in the cell?
    14·1 answer
  • A chemist reacted 12.0 liters of F2 gas with NaCl in the laboratory to form Cl2 gas and NaF. Use the ideal gas law equation to d
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!