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Mila [183]
3 years ago
11

What is the pH for a 0.10 M HCI solution at 25 degreesCelsius?

Chemistry
1 answer:
11Alexandr11 [23.1K]3 years ago
3 0

Answer:

1.0

Explanation:

Hydrochloric acid is a strong acid, that is, an acid that dissociates completely, according to the following reaction.

HCl(aq) → H⁺(aq) + Cl⁻(aq)

Then, the concentration of H⁺ will be equal to the initial concentration of the acid, i.e., 0.10 M.

We can calculate the pH using the following expression.

pH = -log [H⁺] = -log 0.10 = 1.0

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Answer:

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Explanation:

The number of atoms, molecules or ions present in a substance is given by the Avogadro's number which is 6.02 × 10^23.

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1 molecule of vitamin D contains 6.02 ×10^23 atoms

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In two or more complete sentences explain how to balance the chemical equation and classify its reaction type.
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<h3>Answer:</h3>

#1. Balanced equation: 2C₅H₅ + Fe → Fe(C₅H₅)₂

#2. Type of reaction: Synthesis reaction

<h3>Explanation:</h3>
  • Balanced equations are equations that obey the law of conservation of mass.
  • When an equation is balanced the number of atoms of each element is equal on both side of the equation.
  • Equations are balanced by putting appropriate coefficients on the reactants and products.
  • In our case, we are going to put coefficients 2, 1 and 1.
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2C₅H₅ + Fe → Fe(C₅H₅)₂

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