Explain how the chromatogram shows that all three samples have at least one substance in common.

Chemistry

1 answer:

solmaris [256]3 years ago

6 0

Answer:

The chromatogram shows that all three samples have at least one substance in common is described below in detailed explanation.

Explanation:

Chromatography is a process of distributing compounds by applying a changing solution on pure paper. A droplet of the compound solvent is recognized near one edge of the paper and then drained. The edge of the paper, closest to the point, is then drawn into the solution without submerging the place itself.

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0.448 g of an unknown diprotic acid is dissolved in about 60 mL of water in a beaker. The solution is transferred to a 100.00 mL

liq [111]

According to the Question:

We initially had 0.448 grams of the unknown diprotic acid, which was added to about 60 mL of water and that solution was added to a 100 mL flask and filled to the 100 mL mark

The above is as mentioned in the question, our 0.448 grams of diprotic acid is basically diluted to 100 mL [it's volume has been increased to 100mL]

but the amount of the acid is still the same

Which means that we now have 0.448 grams of the diprotic acid in a 100mL solution

Percent of the diprotic acid that will be present in the Erlenmeyer Flask:

From this 100 mL solution, 25 mL is transferred to the Erlenmeyer Flask

Which means that (25/100) * 100 = 25 % of the 0.448 grams of diprotic acid is present in the 25 mL sample

Mass of di-protic acid in the 25 mL solution:

Since 25% of the initial amount remains in the final solution,

Mass of the diprotic acid in the final solution = 0.448 * 0.25

Mass in the final solution = 0.112 grams

Therefore, 0.112 grams of the di-protic acid will be present in the Erlenmeyer Flask

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3 years ago

Select the simplest mole ratio for each substance. Glucose (C6H12O6): Sulfuric acid (H2SO4): Butene (C4H8):

Rom4ik [11]

Answer:

1. In Glucose: C : H : O = 1 : 2 : 1

2. In Sulfuric acid: H : S : O = 2 : 1 : 4

3. In Butene: C : H = 1 : 2

Explanation:

Mole ratio is defined as the ratio of amounts in moles present in a compound. Simplest mole ratio basically means that the moles are present in the least whole number ratio.