1 year ago

Why is paper chromatography used for amino acids

1 answer:

5 0

Paper chromatography is especially useful in characterizing amino acids. The different amino acids move at differing rates on the paper because of differences in their R groups.

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What feature is forming ?

IRISSAK [1]

Answer:

Earthquake

Explanation:

Notice how it is starting to shift allowing the earthquake to form.

3 0

2 years ago

what is the proper scientific notation for 0.000476? a.0.476 × 10-3 b.4.76 × 10-4 c.47.6 × 10-5 d.476 × 10-6

-BARSIC- [3]

B. 4.75 × 10-4 is the answer

6 0

2 years ago

If there were 10 grams of a radioactive isotope, how much of the sample would be left after 1 half-life? How much after 2 half-l

Vikentia [17]

One half-life: 5 grams
Two half-lives: 2.5 grams

3 0

2 years ago

In a synthesis reaction you start with 1.7L of Hydrogen how many liters of water will be produced?

jolli1 [7]

15.3 litres of water will be produced if we take 1.7 litres of Hydrogen

Explanation:

Let's take a look over synthesis reaction;

$H_{2}+ O_{2}$ $H_{2}O$

Balancing the chemical reaction;

$2H_{2} +O_{2}$ $2H_{2}O$

Thus, 2 moles of hydrogen molecules are required to form 2 moles of water molecules.

Equating the molarity;

$\frac{1.7*1}{2*2}$ = $\frac{x*1}{2*18}$

(Since, the molecular mass of hyd and water is 2 and 18 respectively)

x= $\frac{1.7*2*18}{2*2}$

x= 15.3 litres.

Thus,15.3 L of water will be produced if we take 1.7 litres of Hydrogen in a synthesis reaction.

6 0

3 years ago

Are people made up of matter? Do they have mass?

GaryK [48]

Yes. Everything is made up of mass. If it takes up space, it has mass

3 0

2 years ago