W/w% = solute / mass of solution
w/w% = 33.7 / 231
w/w% = 0.146
= 0.146 x 100 => 14.6%
Answer B
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A national day is a day on which celebrations mark the nationhood of a nation or state. It may be the date of independence, of becoming a republic, or a significant date for a patron saint or a ruler (such as a birthday, accession, or removal). The national day is often a public holiday.
According to one acid-base theory, a water molecule acts as an acid when the water molecule (3) donates an H+.
There are 9 orbitals in the third energy level and 25 orbitals in the fifth energy level.
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