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2 years ago

What is the molarity of a solution that is made by adding 57.3 g of MgO to 500.0 mL of solutions

Chemistry

1 answer:

goblinko [34]2 years ago

6 0

Answer:

The answer to your question is 2.84 M

Explanation:

Data

mass of MgO = 57.3 g

volume of the solution = 500 ml

Process

1.- Calculate the molar mass of MgO

MgO = 24.3 + 16 = 40.3 g

2.- Calculate the moles of MgO

40.3 g MgO ----------------- 1 mol

57.3 g MgO ----------------- x

x = (57.3 x 1) / 40.3

x = 1.42 moles

3.- Calculate the Molarity

Molarity = moles / volume (l)

Volume = 0.5 liters

-Substitution

Molarity = 1.42 / 0.5

-Result

Molarity = 2.84

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$\frac{1}{1}\times 224,250 mol=224,250 mol$ of magnesium hydroxide

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