Electric lights will not come on unless their electrical circuit is a?
1 answer:
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Answer : The correct option is D.
Explanation :
Balanced chemical equation : It is defined as the mass or component of each atom should be equal on both sides of the equation.
The balanced chemical equation for the reaction of and
is,
So, the correct option is D.
Complete Question
The diagram of the complete question is shown on the first uploaded image.
Answer:
a) The approximate absorbance of benzoic acid at 228 nm? : A = 0.8
b) The molar absorptivity(∈)
of benzoic acid at 228 nm? : ∈ =
Explanation:
Looking at the absorbance spectra, we can see that the approximate absorbance of benzoic acid at 228 is 0.8.
mass concentration of benzoic acid =
the molar concentration of benzoic acid = (mass concentration of benzoic acid) / (molar mass of benzoic acid )
molar concentration of benzoic acid =
molar concentration of benzoic acid =
molar absorptivity (∈) of benzoic acid = (absorbance) /[ (molar concentration of benzoic acid ) × (path length) ]
∈ = (0.8) / [ () ×(1.00 cm)]
=
