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Novay_Z [31]
3 years ago
5

What is the number of moles in 526 L O2 at STP?

Chemistry
2 answers:
NemiM [27]3 years ago
4 0

Answer: The correct answer is : 23.5 mol of O2 .

At STP ( Standard Temperature and potential ) 1 mole of gas has 22.4 L of volume .The follow can be expressed as :

Mole = \frac{given volume in L}{22.4 L }  * 1 mol

Given volume of O2 gas = 526 L

Plugging value in the formula :

Mole = \frac{526 L}{22.4 L} * 1 mol

Mole of O2 gas at STP = 23.5 mol

Katena32 [7]3 years ago
3 0
526 L O2 x 1 mol O2 / 22.4 L = 23.5 mol O2
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Calculate the molarity of the two solutions. The first solution contains 0.550 mol of NaOH in 1.40 L of solution.
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Answer:

0.393 mol/L.

Explanation:

The following data were obtained from the question:

Number of mole of NaOH = 0.550 mol

Volume of solution = 1.40 L

Molarity of NaOH =.?

Molarity of a solution is simply defined as the mole of solute per unit litre of the solution. Mathematically, it is expressed as:

Molarity = mole /Volume

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Molarity = mole / Volume

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Molarity of NaOH = 0.393 mol/L

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