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damaskus [11]
2 years ago
14

3A. A student slurry packed a silica gel column for the separation of 2-nitroanaline and 4-nitroanaline as described in the expe

riment given. During packing, they are not paying close enough attention and allow the top of the silica gel to run dry causing cracking within the silica gel. The student continues with the experiment and applies the mixture of isomers to the chromatography column. While the yellow band of the sample is being eluted, the student observes that there isn’t a clear separation with two separate yellow bands for each isomer and the band does not appear to be moving in a level band. Instead the band is slightly slanted What caused the poor separation of the isomers? What could the student do differently in the future to improve the results of the experiment?
Chemistry
1 answer:
Leto [7]2 years ago
5 0

Answer:

i like ya cut g

Explanation:

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The answer is given below in the picture

Explanation:please check it

6 0
3 years ago
What happens to the atoms during a chemical reaction
Likurg_2 [28]

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Explanation:

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Consider the following reaction at constant pressure. Use the information provided below to determine the value of ΔS at 473 K.
Elis [28]

Answer:

The reaction will be spontaneous

Explanation:

To determine if the reaction will be spontaneous or not at this temperature, we need to calculate the Gibbs's energy using the following formula:

\Delta G= \Delta H - T * \Delta S

<u>If the Gibbs's energy is negative, the reaction will be spontaneous, but if it's positive it will not.</u>

Calculating the \Delta G= -1267 - 473 K* \Delta S :

\Delta G= -1267 - 473 K* \Delta S

Now, other factor we need to determine is the sign of the S variation. When talking about gases, the more moles you have in your system the more enthropic it is.

In this reaction you go from 7 moles to 8 moles of gas, so you can say that you are going from one enthropy to another higher than the first one. This results in: \Delta S>0[/tex}Back to this expression: [tex]\Delta G= -1267 - 473 K* \Delta S

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4 0
3 years ago
A 2.500g sample of compound containing only Carbon and Hydrogen is found containing 2.002g of Carbon. Determine the empirical fo
Dima020 [189]

The empirical formula : CH₃

<h3>Further explanation</h3>

Given

2.5 g sample

2.002 g Carbon

Required

The empirical formula

Solution

Mass of Hydrogen :

= 2.5 - 2.002

= 0.498

Mol ratio C : H :

C : 2.002/12 = 0.167

H : 0.498/1 = 0.498

Divide by 0.167 :

C : H = 1 : 3

7 0
2 years ago
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