Go to a calculator and find that 2 millimeters is 2e+6 nanometers.
Hoped I helped!
PH +pOH = 14
(14 - 11.5) = 2.5 (the ph is 2.5)
NOW, Ph = -lg (H*)
apply the formula
Answer:
A system is in equilibrium when the rate of the forward reaction is equal to the rate of the reverse reaction.
Explanation:
In a system in equilibrium, the rupture and formation of new bonds from the formation and decomposition of substances must have the same reaction rate. Thanks to equal speeds we can say that a system in equilibrium is dynamic and in general every system tends to move spontaneously towards equilibrium. The environment never interferes.
For example.
N2 (g) + 3H2 (g) ---> 2NH3 (g) formation
2NH3 ----> N2 (g) + 3H2 (g) decomposition
N2 (g) + 3H2 (g) <------> 2NH3 (g) In equilibrium
Answer:
C₂ = 0.52 M
Explanation:
Given data:
Initial volume = 334.75 mL
Initial concentration = 1.28 M
Final volume = 822.18 mL
Final concentration = ?
Solution:
C₁V ₁ = C₂V₂
By putting values,
1.28 M×334.75 mL = C₂×822.18 mL
C₂ = 1.28 M×334.75 mL / 822.18 mL
C₂ = 428.48 M.mL / 822.18 mL
C₂ = 0.52 M
Answer:
10.9 * 10^-7 m
Explanation:
We know that the Rydberg constant (R) is – 13.6 eV = -2.18 * 10^-18 J
ΔE= -R(1/nf - 1/ni)
Where;
nf = final state
ni= initial state
ΔE= -2.18 * 10^-18(1/3 - 1/4)
ΔE= -2.18 * 10^-18(1/12)
ΔE= -1.81 * 10^-19 J
From;
ΔE=hc/λ
h = plank's constant = 6.6 * 10^-34 Js
c = 3 * 10^8 ms-1
λ = ?
λ = hc/ΔE
λ = 6.6 * 10^-34 * 3 * 10^8/ 1.81 * 10^-19
λ = 10.9 * 10^-7 m
