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Aleonysh [2.5K]
3 years ago
5

Calculate the volume in L of 12.9 g of NO2 at STP.

Chemistry
1 answer:
d1i1m1o1n [39]3 years ago
3 0

Answer:

6.28 L

Explanation:

Given data:

Volume of NO₂ = ?

Mass of NO₂ = 12.9 g

Temperature and pressure = ?

Solution:

First of all we will calculate the number of moles of gas.

Number of moles = mass/molar mass

Number of moles = 12.9 g/ 46 g/mol

Number of moles = 0.28 mol

At standard temperature and pressure 1 mole of gas occupy 22.4 L volume.

Thus,

0.28 mol × 22.4 L/1 mol

6.27 L ≅ 6.28 L

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Answer:

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Explanation:

Details of the solution is shown below. From the information provided regarding the N2 produced, we could calculate the amount of N2 produced and use that to find the mass of sodium azide reacted.

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What is a quantum of light energy called?
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3 years ago
Describe solids,liquids, and gases interms of how they fill a container. Use your descriptions to identify the physical state (a
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Explanation:

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The physical state (at room temperature) of the following are determined as follows:

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3 years ago
A compound is 80.0% carbon and 20.0% hydrogen by mass. assume you have a 100.-g sample of this compound. the molar mass of the c
ch4aika [34]
Basis of the calculation: 100g
 
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  Number of moles of carbon = (80 g)(1 mole / 12g) = 20/3

For Hydrogen:
  Mass of hydrogen = (100 g)(0.20) = 20 g
     Number of moles of hydrogen = (20 g)(1 mole / 1 g) = 20

Translating the answer to the formula of the substance,
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ANSWER: C2H6

 
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