Answer: Hello i am confused are you asking a question?
Explanation:
For this problem, we use the Beer Lambert's Law. Its usual equation is:
A = ∈LC
where
A is the absorbance
∈ is the molar absorptivity
L is the path length
C is the concentration of the sample solution
As you notice, we only have to find the absorbance. But since we are not given with the molar absorptivity, we will have to use the modified equation that relates % transmittance to absorbance:
A = 2 - log(%T)
A = 2 - log(27.3)
A = 0.5638
Answer:
C. Precipitate the crystals as fast as possible
Explanation:
C. Precipitate the crystals as fast as possible
Precipitation if done fast , can lead to the formation of impure crystals , as impurities also get stuck inside the crystals. So it must be done slowly to obtain the pure crystals . Slower the crystals form , purer they are .
All the other options can lead to a successful recrystallization.
Simple...
moving along the periodic table ---->>>
Oxygen has 6.
Nitrogen has 5.
Sodium has 1.
Neon has 8.
Thus, your answer, Oxygen.
<h2>Answer:</h2>
The correct answer is the option A which is: Cl2 + 2e- → 2Cl-
<h3>Explanation:</h3>
<em><u>Reduction is the gain of electrons and resulting in neutral or negative ions.</u></em>
<em><u>It is also the gain of hydrogen and release of oxygen ions.</u></em>
- According to first most definition, option A describes the reduction.
- Option B is incomplete reaction.
- While C and D are oxidation reactions.
