What is true of a solution of 1.0 M HCl(aq)? It contains 1.0 gram of HCl per 100 grams of water. It contains 1.0 gram of HCl per
2 answers:
Answer: It contains 1.0 mole of HCl per 1 liter of solution.
Explanation:
Molarity : It is defined as the number of moles of solute present in one liter of solution.
Formula used :
where,
n = moles of solute
= volume of solution in liter
Thus 1.0 M solution means the solution contain 1 mole in 1 liter of solution.
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pH of 0.048 M HClO is 4.35.
<u>Explanation:</u>
HClO is a weak acid and it is dissociated as,
HClO ⇄ H⁺ + ClO⁻
We can write the equilibrium expression as,
Ka =
Ka = 4.0 × 10⁻⁸ M
4.0 × 10⁻⁸ M =
Now we can find x by rewriting the equation as,
x² = 4.0 × 10⁻⁸ × 0.048
= 1.92 × 10⁻⁹
Taking sqrt on both sides, we will get,
x = [H⁺] = 4.38 × 10⁻⁵
pH = -log₁₀[H⁺]
= - log₁₀[ 4.38 × 10⁻⁵]
= 4.35