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julia-pushkina [17]
3 years ago
13

210.0 °C a gas has a volume of 8.00 L. What is the volume of this gas at -23.0°C?

Chemistry
1 answer:
Firlakuza [10]3 years ago
5 0
You will need to use Charles Law. Volume1/Temperature1 = Volume2/Temperature2 Note all temperatures must be in Kelvin. You can convert Celsius to Kelvin by adding 273. Then plug in and solve . You should get 4.14L
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1.194 mol

(remember to use sig figs!)

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Two substances with empirical formula HNO are hyponitrous acid (M = 62.04 g/mol) and nitroxyl (M = 31.02 g/mol).(b) For each spe
Natalija [7]

Below is an attachment of the Lewis structure with the lowest formal charges.

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6 0
2 years ago
What is the concentration (in M) of a sample of the unknown dye with an absorbance of 0.25 at 542 nm?
Sladkaya [172]

Answer:

see explanation below

Explanation:

Question is incomplete, so in picture 1, you have a sample of this question with the missing data.

Now, in general terms, the absorbance of a substance can be calculated using the beer's law which is the following:

A = εlc

Where:

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l: distance of the light in solution

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However, in this case, we have a plot line and a equation for this plot, so all we have to do is replace the given data into the equation and solve for x, which is the concentration.

the equation according to the plot is:

A = 15200c - 0.018

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0.25 = 15200c - 0.018

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tamaranim1 [39]

Answer:

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