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podryga [215]
2 years ago
5

A 0.704-9 sample of a colorless liquid was vaporized in an evacuated 250-ml. flask at 121°C to give a pressure of 786 mmHg. What

is the molecular weight of this substance?
Chemistry
1 answer:
Vadim26 [7]2 years ago
8 0

<u><em>Answer:</em></u>

<u><em>Molecular weight = amu</em></u>

<u><em>hopes this helps :)</em></u>

<u><em>Explanation:</em></u>

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Be sure to answer all parts. Consider the following balanced redox reaction (do not include state of matter in your answers): 2C
timurjin [86]

Answer:

The specie which is oxidized is:- CrO_2^-

The specie which is reduced is:- ClO^-

Explanation:

Oxidation reaction is defined as the chemical reaction in which an atom looses its electrons. The oxidation number of the atom gets increased during this reaction.

X\rightarrow X^{n+}+ne^-

Reduction reaction is defined as the chemical reaction in which an atom gains electrons. The oxidation number of the atom gets reduced during this reaction.

X^{n+}+ne^-\rightarrow X

For the given chemical reaction:

2CrO_2^- + 6ClO^- + 2H_2O\rightarrow 2CrO_4^{2-} + 3Cl_2 + 4OH^-

The half cell reactions for the above reaction follows:

Oxidation half reaction:  CrO_2^- + 2H_2O + 4OH^-\rightarrow CrO_4^{2-} + 4H_2O + 3e^-

Reduction half reaction:  2ClO^- + 4H_2O + 2e^-\rightarrow Cl_2 + 2H_2O + 4OH^-

Thus, the specie which is oxidized is:- CrO_2^-

The specie which is reduced is:- ClO^-

8 0
3 years ago
Yusef adds all of the values in his data set and then divides by the number of values in the set. What is Yusef most likely find
Zanzabum

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weqwewe [10]
I got 0 ?? if that’s any help
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2 years ago
Write the balanced chemical equation for the reaction of glucose (C6,H12,O6) with oxygen gas to produce carbon dioxide gas
Fittoniya [83]

Answer:

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What do you look at to tell the reactivity of an atom?
tia_tia [17]

Answer:

The number of electrons in the outermost shell of an atom determines its reactivity. Noble gases have low reactivity because they have full electron shells. Halogens are highly reactive because they readily gain an electron to fill their outermost shell.

Explanation:

I hope this helped!

8 0
3 years ago
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