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fredd [130]
4 years ago
10

The molar mass of the compound was found to be 30.069 g/mol. what is the molecular formula? express your answer as a chemical fo

rmula.
Chemistry
1 answer:
kodGreya [7K]4 years ago
6 0

For us to accurately determine what compound this is, additional info must be given. However I can suggest two compounds which have molecular mass of about 30.07 g/mol.

1. It could be NO or nitric oxide.

The molecular mass is 16 + 14= 30 g/mol

But if we search the exact weight, it is 30.01 g/mol

 

2. It could also be (CH3)2  or ethane.

The molecular mass is 2*12+ 6*1= 30 g/mol

But if we search the exact weight, it is 30.07 g/mol.

 

<span>So we could say it more likely to to be (CH3)2 </span>

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xz_007 [3.2K]

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4 years ago
the temperature of a balloon rises from 275 degrees k to 395 degrees k, what would the ending volume be if it started at 5 L
Airida [17]
<h3>Answer:</h3>

7.182K

<h3>Explanation:</h3>

From the question we are given;

  • Initial temperature, T1 = 275 K
  • Final temperature, T2 = 395 K
  • Initial volume, V1 = 5 L

We are required to calculate the final volume, V2

  • Charles's law is the law that relates the volume of a gas and its temperature.
  • It states that the volume of a fixed mass of a gas and its absolute temperature are directly proportional at a constant pressure.
  • Therefore;

\frac{V1}{T1}=\frac{V2}{T2}

To calculate, V2 we rearrange the formula;

V2=\frac{V1T2}{T1}

V2=\frac{(5L)(395K)}{275}

V2=7.182K

Therefore, the ending volume will be 7.182K

8 0
4 years ago
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viva [34]

Answer:

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5 0
3 years ago
During an experiment, 321.1 grams of strontium phosphite are measured into a beaker. How many moles of strontium phosphite are i
Allushta [10]

321.1 g of strontium phosphite will contain 0.76 moles of strontium phosphite in the beaker.

<u>Explanation:</u>

It is known that 1 mole of any substance is equal to the molar mass of that substance. So for the case of strontium phosphite, the molar mass is found to be 420.8 g/mol.

This means 1 mole of Strontium phosphite will contain 420.8 g of strontium phosphite.

Then 1 g of strontium phosphite will have \frac{1}{420.8} moles of strontium phosphite.

So, 321.1 g of strontium phosphite will contain \frac{321.1}{420.8}=0.76 moles

Thus, 321.1 g of strontium phosphite will contain 0.76 moles of strontium phosphite in the beaker.

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2 Which best describes an acid?
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D. A sour liquid that forms gas bubblee when mixed with copper

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