<u>Explanation:</u>
Structural formula is defined as the formula in which the bonding and type of bonds which holds the atoms in molecule together are shown.
For the given options:
<u>Option a:</u> Pyrogallol (1,2,3-benzenetriol)
The functional group attached is hydroxyl group. The structure is attached in the image below.
<u>Option b:</u> o-Benzylphenol
The substitutent attached to parent structture (phenol) is benzyl. The structure is attached in the image below.
<u>Option c:</u> 3-Nitro-1-naphtol
The functional group attached is nitro group at 3rd position. The structure is attached in the image below.
Molar mass is the ratio of the mass to that amount of the substance. The mass of the barium nitrate in the formula unit is 23.0 grams.
<h3>What is mass?</h3>The mass of a substance is the product of the molar mass of the compound and the number of moles of the compound.
Given,
Molar mass of barium nitrate = 261.35 g/mol
If, have a mass of 261.35 g/mol then,
formula units will have a mass of,
Therefore, option C. 23.0 gm is the mass of barium nitrate.
Learn more about mass here:
Glycerol will react with 3 butanoic acid molecule to produce glyceryl tributyrate.
Explanation:
You may find the chemical reaction and the structure of molecules in the attached picture.
Learn more about:
triglyceride
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