Find the normality of a solution containing 20g of H2SO4(sulfuric acid) per 500ml of solution. The molar mass of H2SO4 is 98 g/eq. H2SO4 has two replaceable H+.

Answers

Answer 1

Answer: H2SO4 ------------- > 2 H⁺ + SO₄²⁻

g/eq = molar mass / number of H⁺

g/eq = 98 / 2

= 49 g/eq

Volume in liters = 500 mL / 1000 => 0.5 L

N = 20 / 0.5 x 49

N = 20 / 24.5

= 0.816 N

hope this helps!

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Answers

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Final answer:

Phenolphthalein turns pink in the presence of a base.

Explanation:

Phenolphthalein turns pink in the presence of a base. It is a pH indicator that changes color depending on the acidity or alkalinity of a solution. In an acidic solution, phenolphthalein remains colorless, while in a basic solution, it turns pink.

Learn more about Phenolphthalein turning pink here:

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Answers

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Hello,

Chemical reactions are widely generalized by the following chemical equation:

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The coefficient 2 in the hydrochloric acid is set due to the produced calcium chloride which has two chlorine atoms in order to equal them.

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