The value of X for this chemical reaction is 1.65 x 10⁻⁴
<u>Explanation:</u>
Mg (OH)₂(s) <==> Mg²⁺+(aq) + 2OH₋₁(aq)
Kc= 1.80x10⁻¹¹
KC = [Mg²⁺][OH-]²
Let us assume
Put X = [Mg²⁺] and 2x =
[OH-]
1.80x10-11 = (X) (2X)²
1.80x10-11 = 4X³
X³ = 4.5x10⁻¹²
On simplifying the equation we get,
X = 1.65 x 10⁻⁴
The value of X for this chemical reaction is 1.65 x 10⁻⁴
Chemical I’m learning that stuff too :)
Ammonia undergoes combustion with oxygen to produce nitric oxide and water. The volume of the oxygen required to react with 720 ml of ammonia is 900 ml.
<h3>What is volume?</h3>
Volume is the area occupied by the substance and is the ratio of the mass to the density.
At STP, 1 mole of gas occupies 22.4 L of volume
Given,
Volume of ammonia reacted = 0.720 L
The combustion reaction is shown as,

From the stoichiometry of the reaction, it can be said that,
L of ammonia reacts with
L of oxygen gas.
So, 0.720 L of ammonia will react with:

Therefore, the volume of oxygen required is 900 mL.
Learn more about volume here:
brainly.com/question/14090111
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