Answer: One way to separate a racemic mixture is through Crystallization.
Explanation:
A separation of a racemic mixture into their component enantiomers, is well know as "resolution"
When separating a racemic mixture of tartaric acid, the easiest way to do it, is by crystiallization.
As we can see in the diagram, we introduce a pure enantiomer seed that will start the desire conglomerate, and under repetead cycles of cooling and heating, the pure conglomerate crystal will grow, thereby leaving the other enantiomer in solution.
The 3% mass/volume H₂O₂ means 3 g of H₂O₂ in 100 ml of water.
Now, Molarity (M) = No. of moles of H₂O₂ / Volume of solution in liter
No. of moles of H₂O₂ = Mass / Molar mass = 3 g / 34 g/mol = 0.088 mol
So, molarity = 0.088 × 1000 ml / 100 ml = 0.88 M
In case of 2.25 % H₂O₂,
No of moles = 2.25 g / 34 g/mol = 0.066 mol
Molarity = 0.066 mol / 0.100 L = 0.66 M.
Here is your answer
B. NaCl
_________________
In option A. Na isn't present.
In option C. there are two atoms of Na
So, option B is correct
HOPE IT IS USEFUL
It's D I think. when experimental results do not support the original hypothesis