Answer: Strong bases are good electrolytes because they completely ionize in water.
Explanation:
Weak bases are those substances which dissociate partially to give ions when dissolved in water.
Strong bases are those substances which dissociate completely to give ions when dissolved in water.
Strong bases are good electrolytes as they completely dissociate to give ions which help in the conduction of electrical current.
Answer:
pH = 11.9
Explanation:
First, we <u>determine the number of OH⁻ moles dissolved</u>:
<em>80% of Ca(OH)₂ is dissolved</em>:
- 0.0005 mol * 80/100 = 4x10⁻⁴ mol Ca(OH)₂
<em>There are two OH⁻ moles per Ca(OH)₂ mol</em>:
- 4x10⁻⁴ * 2 = 8x10⁻⁴ mol OH⁻
Now we can <u>calculate the molar concentration of OH⁻</u> (moles/L):
- 100 mL ⇒ 100/1000 = 0.1 L
- [OH⁻] = 8x10⁻⁴ mol / 0.1 L = 8x10⁻³ M
Then we <u>calculate the pOH of the solution</u>:
- pOH = -log[OH⁻] = -log(8x10⁻³ M) = 2.10
Finally, we can <u>calculate the pH of the solution</u> using the equation
Explanation:
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Answer:
aluminium chloride, ferric chloride,
so C is correct I guess