Answer:
s = 4.41 g/L.
Explanation:
¡Hola!
En este caso, considerando el escenario dado, se hace necesario para nosotros saber que la posible reacción de disociación la experimenta el cloruro de plomo (II) como se muestra a continuación:
Lo cual hace que la expresión de equilibrio se calcule como:
Y que en términos de la solubilidad molar, s, se resuelve como:
Ahora, convertimos este valor a g/L al multiplicarlo por la masa molar del cloruro de plomo (II):
¡Saludos!
The concentration of hydroxide ion is 5 10^
−
14 M.
<u>Explanation:</u>
Consider the equilibrium of this acid's dissociation,
H C l O 4 ⇌ H + + C l O 4 -
Moreover, let's assume that H C l O 4 is a strong acid and will fully dissociate.
Hence,
[ H + ] = 0.20 M
Now, recall,
K
w = [
H
+
]
[
O
H
−
] = 1.0 10
^−
14
Hence,
⇒
[
O
H
−
] = K
w / [
H
+
] = 5 10^
−
14 M.
The question is incomplete, here is the complete question:
Iron (III) oxide and hydrogen react to form iron and water, like this:
At a certain temperature, a chemist finds that a 8.9 L reaction vessel containing a mixture of iron(III) oxide, hydrogen, Iron, and water at equilibrium has the following composition.
Compound Amount
Fe₂O₃ 3.95 g
H₂ 4.77 g
Fe 4.38 g
H₂O 2.00 g
Calculate the value of the equilibrium constant Kc for this reaction. Round your answer to 2 significant digits.
<u>Answer:</u> The value of equilibrium constant for given equation is
<u>Explanation:</u>
To calculate the molarity of solution, we use the equation:
Given mass of hydrogen gas = 4.77 g
Molar mass of hydrogen gas = 2 g/mol
Volume of the solution = 8.9 L
Putting values in above expression, we get:
Given mass of water = 2.00 g
Molar mass of water = 18 g/mol
Volume of the solution = 8.9 L
Putting values in above expression, we get:
For the given chemical equation:
The expression of equilibrium constant for above equation follows:
Concentration of pure solids and pure liquids are taken as 1 in equilibrium constant expression.
Putting values in above expression, we get:
Hence, the value of equilibrium constant for given equation is