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2 years ago

Why did all sodium compounds show the same colour in the flame? (flame test)

Chemistry

1 answer:

mojhsa [17]2 years ago

5 0

Answer:

Every element has its own particular spectrum of colours that the atoms or ions will emit when energy (in this case heat) is supplied. ... So, the sodium in sodium chloride, sodium nitrate, etc all produce the same bright yellow colour that is a characteristic of sodium.

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According to one acid-base theory, a base is an

tatiyna

A. Proton acceptor and this is according to the bronsted Lowry theory

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3 years ago

You crumple a piece of paper in your hands. Not all of the kinetic energy from your hands is used to crumple the paper. Where do

Shkiper50 [21]

Answer:

Explanation:

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3 years ago

What is the solubility of argon (in units of grams per liter) in water at 25 °C, when the Ar gas over the solution has a partial

beks73 [17]

Answer:

0.02405 g/L is the solubility of argon in water at 25 °C.

Explanation:

Henry's law states that the amount of gas dissolved or molar solubility of gas is directly proportional to the partial pressure of the liquid.

To calculate the molar solubility, we use the equation given by Henry's law, which is:

$C_{Ar}=K_H\times p_{gas}$

where,

$K_H$ = Henry's constant = $1.40\times 10^{-3}mol/L.atm$

$p_{Ar}$ = partial pressure of carbonated drink = 0.51atm

Putting values in above equation, we get:

$C_{Ar}=1.40\times 10^{-3}mol/L.atm\times 0.430 atm\\\\C_{Ar}=6.02\times 10^{-4}mol/L$

Molar mass of argon = 39.95 g/mol

Solubility of the argon gas :

$6.02\times 10^{-4}mol/L\times 39.95 g/mol=0.02405 g/L$

0.02405 g/L is the solubility of argon in water at 25 °C.

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3 years ago

When sodium peroxide is added to water, sodium hydroxide and oxygen gas is produced.

lukranit [14]

Answer:

The reaction combines the sodium with the hydrogen and oxygen in water to form sodium hydroxide and hydrogen gas, and you get a lot of energy released as heat as well. This heat actually melts any remaining sodium that has not reacted yet, and ignites the hydrogen gas, so you get the bang and the flash.

Explanation:

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3 years ago

What is the density of an object having a volume of 8 ml and a mass of 22 grams?

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Answer:

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3 years ago

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