4 years ago

What volume will 1.12 moles of nitrogen gas occupy at STP

Chemistry

1 answer:

krok68 [10]4 years ago

8 0

Answer:

Explanation:

Volume occupied by Nitrogen gas at STP = number of moles x 22.4dm³/mol

Number of moles = 1.12moles

Volume = 1.12 x 22.4

Volume at STP = 25.1dm³

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ziro4ka [17]

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Explanation:

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3 years ago

In the laboratory you are asked to make a 0.565 m sodium bromide solution using 315 grams of water. How many grams of sodium bro

Scorpion4ik [409]

Answer : The mass of sodium bromide added should be, 18.3 grams.

Explanation :

Molality : It is defined as the number of moles of solute present in kilograms of solvent.

Formula used :

$Molality=\frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Mass of solvent}}$

Solute is, NaBr and solvent is, water.

Given:

Molality of NaBr = 0.565 mol/kg

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Now put all the given values in the above formula, we get:

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3 years ago

What is the pH of a 4.08*10-'M solution of H30+?

Mariana [72]

Answer:

8.4

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-log(4.08x10^-9) = 8.4

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3 years ago

In a laboratory experiment, John uses a mesh to separate soil particles from water. Which technique of separation is he using?

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