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3 years ago

Name the following hydrocarbons

Chemistry

1 answer:

Yakvenalex [24]3 years ago

8 0

Answer:

1) 3-methylpentane 2)Butyne

Explanation:

On the first molecule, we have a methyl group on the 3rd carbon, so you will have "3-methhyl". It's a 5 carbon molecule with no double bonds, so "-pentane" is required.

On the second molecule, we have a simple 4 carbon molecule with a triple bond which makes it an Alkyne. 4 carbons makes the prefix "but-" and a alkyne males the ending "-yne".

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The O2 produced from the decomposition of the 1.0 L sample of H2O2 is collected in a previously evacuated 10.0 L flask at 300. K

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The full question can be seen below:

$2H_{2}O_2_{(aq)} --> 2H_{2}O_{(l)}+O_{2}_{g}$

The decomposition of $H_{2}O_{aq}$ is represented by the equation above.

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Time (s) $H_{2}O_2$

0 2.7

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1.2 atm

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Considering all assumptions as stated above;

$2H_{2}O_2_{(aq)} --> 2H_{2}O_{(l)}+O_{2}_{g}$

Initial 2.7 mole --- ---

Change -1.0 --- $+\frac{1.0}{2}$

Equilibrium 1.7 mole --- 0.5 mole

To determine the concentration of O₂; we need to convert the moles to concentration for O₂ = $\frac{0.5}{volume in the flask}$

= $\frac{0.5 mol}{10.0 L}$

= 0.05 $\frac{mol}{L}$

Thus, based on the assumption that "1.0 mole of gas in 1.0 L exerts a pressure of 24 atm"

∴ 0.05 $\frac{mol}{L}$ will give rise to = 0.05 $\frac{mol}{L}$ × 24

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3 years ago

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Dovator [93]

<h3>Answer:</h3>

200 molecules of water has the highest concentration.

<h3>Explanation:</h3>

In chemistry, Concentration is defined as the amount of substance divided by the total volume of the constituents making the mixture.

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In this case we are having system which is made up of 200 purely water molecules and there is no other substance present in the system. Hence, for ease we can write it as,

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