Calcium hydroxide is commonly known as agricultural lime and is used to adjust to the soil pH. Before the lime was added to a field, the soil pH was 5. After the lime was added, the soil underwent a 100-fold decrease in hydronium ion concentration.

A) What ion caused the decrease of hydronium ion?

B) Give the formula for the base used in this passage.

Answers

Answer 1

Answer:

Explanation:

a) Hydronium ion (H₃O⁺) is the acidic ion, after reacting with a base Calcium hydroxide the pH decreased. The base contained a hydroxide ion (OH⁻) which reacted with the Hydronium ion causing the decrease of hydronium ion.

b) The base which is Calcium hydroxide is made up of Calcium ion (Ca²⁺) and hydroxide ion (OH⁻) which reacts to form Calcium hydroxide [Ca(OH)₂]

Ca²⁺    +       OH⁻     ⇒    Ca(OH)₂

Answer 2

a. The reason of ion that resulted into the decrease of the hydronium ion should be explained below.

b. The formula is Ca²⁺    +       OH⁻     ⇒    Ca(OH)₂.

What is Hydronium ion?

a) Hydronium ion (H₃O⁺) represent the acidic ion that should be reacted along with the base i.e.  Calcium hydroxide when there should be decrease in the pH. Here the base should comprise of the hydroxide ion (OH⁻) that should be reacted with the Hydronium ion.

b. The formula should be

we know that

The base should be based on Calcium hydroxide comprise of Calcium ion (Ca²⁺) and hydroxide ion (OH⁻)

So, it should be like

Ca²⁺    +       OH⁻     ⇒    Ca(OH)₂

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Related Questions

What is the molecular formula for Tricarbon nonachloride?
A. CCl
B. C4Cl8
C. C3Cl9
D. T3N9

Answers

Answer:

C: C3CI9

Explanation:

Binary Molecular compound states that the molecular formula for tricarbon nonacholride is C3CI9

Hope this helps

Answer:

C

Explanation:

Think about the prefixes to solve this. I've attached a Latin prefix chart. It might help to memorize this!

Tri- carbon means 3 carbons.

Nona- chloride means 9 chlorines.

So the answer is C₃Cl₉.

The reason we use these prefixes is because it's a covalent compound. If it's ionic, we don't need to use the tri- or nona- parts of it.

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