Answer:
concentration of = 0.0124 = 12.4 ×10⁻³ M
concentration of = 0.0248 = 2.48 ×10⁻² M
concentration of = 0.4442 M
Explanation:
Equation for the reaction:
⇄ +
Concentration of = = 0.469
For our ICE Table; we have:
⇄ +
Initial 0.469 0 0
Change - 2x +2x +x
Equilibrium (0.469-2x) 2x x
K =
K =
Since the value pf K is very small, only little small of reactant goes into product; so (0.469-2x)² = (0.469)²
x = 0.0124
∴ at equilibrium; concentration of = 0.0124 = 12.4 ×10⁻³ M
concentration of = 2x = 2 ( 0.0124)
= 0.0248
= 2.48 ×10⁻² M
concentration of = 0.469-2x
= 0.469-2(0.0124)
= 0.469 - 0.0248
= 0.4442 M
The new volume is 38 ml.
<u>Explanation</u>:
At NTP,
P1 = 760 mm,
P2 = 800 mm,
V1 = 40 ml
Boyle's law states that when a gas is held at a constant temperature and mass in a closed container, the volume and pressure vary inversely.
By applying Boyle's law,
P1 V
1 = P2 V2
where P1, P2 represents the pressure of a gas,
V1, V2 represents the volume of a gas.
P1 V
1 = P2 V2
760×40 = 800×V 2
V 2 = (760×40) / 800
V2 = 38 mL.