3 years ago

Determine the the mass of one molecule of hydrogen sulfide gas.

1 answer:

6 0

Answer:

the molecular mass of hydrogen sulphide, which contains two atoms of hydrogen and one atom of sulphur is = 2 — 1 + 1 — 32 = 34 a.m.u.

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A sample of oxygen gas in one container has a volume of 20.0mililiter at 297 K and 101.3 kPa. The entire sample is transferred t

VashaNatasha [74]

Answer: $V_2=\frac{101.3kPa\times 20.0ml\times 283K}{297K\times 94.6kPa}$

Explanation:

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,:

$\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}$

$V_2=\frac{P_1V_1T_2}{T_1P_2}$

where,

$P_1$ = initial pressure of gas = 101.3 kPa

$P_2$ = final pressure of gas = 94.6 kPa

$V_1$ = initial volume of gas = 20.0 ml

$V_2$ = final volume of gas = ?

$T_1$ = initial temperature of gas = $297K$

$T_2$ = final temperature of gas = $283K$

Now put all the given values in the above equation, we get the final volume of gas.

$V_2=\frac{101.3kPa\times 20.0ml\times 283K}{297K\times 94.6kPa}$

$V_2=20.4ml$

Thus the correct numerical setup for calculating the new volume is $\frac{101.3kPa\times 20.0ml\times 283K}{297K\times 94.6kPa}$

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3 years ago

If Hershey and Chase had used radioactive oxygen in their experiments instead of phosphorus and sulfur, what results would they

Pepsi [2]

Answer:

A. They would have observed a radioactive signal in both the pellet and the liquid.

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2 years ago

Gelneren [198K]

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Maybe they both have valence electrons and can be used in chemical reactions. I could be wrong, I don't have any exact answers.

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The diagram shows a model of the nitrogen cycle. which role do plants play in the nitrogen cycle?

kenny6666 [7]

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They take up usable forms of nitrogen found in soil

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Examine the molecular structure of this lipid. What type of lipid is this?

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The correct answer is Phospholipid

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