What component of air causes the flame in a bunsen burner to become bluer?

Chemistry

1 answer:

Lyrx [107]3 years ago

7 0

<h3><u>Answer;</u></h3>

Oxygen

<h3><u>Explanation;</u></h3>

<em><u>A bunsen burner attains a blue gas flame when there is enough oxygen for complete combustion. </u></em>
When there is sufficient oxygen, the gas flame appears blue because complete combustion creates enough energy to excite and ionize the gas molecules in the flame.
In other words; increasing oxygen supply, less black body-radiating soot is produced as a result of a more complete combustion and the reaction creates enough energy to excite and ionize gas molecules in the flame, and a blue flame is formed.

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Kobotan [32]

The question is incomplete, here is the complete question:

Assume that concentrated aqueous NH₃ has a density of 0.252 g/mL (0.252 g of NH₃ per mL of liquid). Calculate the volume of NH₃ required to contain 0.442 mol?

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<u>Explanation:</u>

To calculate the number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$