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Ronch [10]
3 years ago
12

10. In what biome would you most likely find

Chemistry
1 answer:
dimaraw [331]3 years ago
3 0

Answer:

Is there supposed to be options I don't understand the question

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Answer:

Law of Conservation of Energy

Explanation:

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What is La Niña?
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3 years ago
A 5.21 mass % aqueous solution of urea (CO(NH2)2) has a density of 1.15 g/mL. Calculate the molarity of the solution. Give your
Alex777 [14]

Answer:

Molarity is 0.99 M

Explanation:

5.21% by mass, is a sort of concentration which shows the mass of solute in 100 g of solution.

Molarity is a sort of concentration that indicates the moles of solute in 1 L of solution (mol/L)

Let's find out the volume of solution by density.

Solution density = Solution mass / Solution volume

1.15 g/mL = 100 g / Solution volume

Solution volume = 100 g / 1.15 g/mL → 86.9 mL

We must have the volume of solution in L, so let's convert it.

86.9 mL / 1000 = 0.0869 L

Now, we have to determine the moles of solute (urea)

5.21 g . 1 mol / 60 g = 0.0868 moles

Mol/L = Molarity → 0.0868 moles / 0.0869L  = 0.99 M

4 0
3 years ago
Read 2 more answers
Write the balanced equation showing the decomposition of carbonic acid and sulfurous acid.
Travka [436]

Explanation:

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