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2 years ago

Calculate the density of sulfur dioxide gas (SO2) at 147°C and 29.9 kPa.

Chemistry

1 answer:

Yuki888 [10]2 years ago

4 0

The density of the gas is obtained as 0.55 g/L.

We can find the density of the gas using the relation;

PM = dRT

P = pressure of the gas

M = molar mass of the gas

d = density of the gas

R = gas constant

T = temperature

Now;

P = 29.9 kPa

R = 8.314 L·kPa mol·K.

T = 147°C + 273 = 420 K

d = ?

M = 64 g/mol

Substituting values;

d = PM/RT

d = 29.9 kPa × 64 g/mol/ 8.314 L·kPa mol-1K-1 420 K

d = 1913.6/3491.88

d = 0.55 g/L

Learn more about density: brainly.com/question/952755

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Answer:

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Explanation:

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In this question, the first condition is 2L volume and 876 mmHg pressure. Then the system changed into the second condition where the volume is 400ml and the pressure is unknown. The pressure will be:

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876 mmHg * 2L = P2 * 400ml /(1000ml/L)

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3 years ago

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fenix001 [56]

A compound is a substance that consists of 2 or more elements chemically combined in a fixed proportion.

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3 years ago

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Serjik [45]

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Ilia_Sergeevich [38]

Answer:

a. Gly-Lys + Leu-Ala-Cys-Arg + Ala-Phe

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Explanation:

In this case, we have to remember which peptidic bonds can break each protease:

-) Trypsin

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-) Chymotrypsin

It breaks selectively the peptidic bond in the carbonyl group of phenylalanine, tryptophan, or tyrosine.

With this in mind in "peptide a", the peptidic bonds that would be broken are the ones in the "Lis" and "Arg" (See figure 1).

In "peptide b", the peptidic bond that would be broken is the one in the "Phe" (See figure 2). The second amino acid that can be broken is tyrosine, but this amino acid is placed in the C terminal spot, therefore will not be involved in the hydrolysis.