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vekshin1
3 years ago
7

What state is nitrogen at 20 degree Celsius

Chemistry
1 answer:
Norma-Jean [14]3 years ago
3 0
Nitrogen becomes a liquid at 20 degrees celsius 
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Why didn't mendeleev use atomic number to arrange the elements?
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True or false: Fungi are able to carry out photosynthesis, similar to plants
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What is the molarity of solution that is 5.50 percentage by mass oxalic acid and has a density of 1.024 g/ml
Y_Kistochka [10]

Answer:

0.6257 M is the molarity of solution that is 5.50 percentage by mass oxalic acid.

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Mass percentage of oxalic acid = 5.50%

This means that in 100 grams of solution there are 5.50 grams of oxalic acid.

Mass of solution , m = 100

Volume of the solution = V

Density of the solution = d = 1.024 g/mL

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V = 97.66 mL = 0.09766 L

(1 mL = 0.001 L)

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Molarity=\frac{\text{Moles of solute}}{\text{Volume of solution in L}}

The molarity of the solution :

=\frac{0.06111 mol}{0.09766  L}=0.6257M

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