Aspirin can be synthesized in the lab by combining salicylic acid ( C 7 H 6 O 3 ) and acetic anhydride ( C 4 H 6 O 3 ) to form aspirin ( C 9 H 8 O 4 ) and acetic acid ( C 2 H 4 O 2 ) . The balanced equation for this reaction is

C4H6O3 + C7H6O3 ==> C9H8O4 + C2H4O2

Explanation:

The synthesis of aspirin an esterification reaction. This is a substitution reaction in which an alcohol (the –OH group in salicylic acid) reacts with acetic anhydride to form an ester, aspirin.

The equation provided above is balanced by making sure all the atoms of the reactants are equal to those of the products. 1mole each of reactants was required and one mole each of the products was formed.

In the equation above:

REACTANT: C = 11, H = 12, O = 6

PRODUCT: C = 11, H = 12, O = 6

Showing they are balanced.

in chemistry, a solution’s concentration is how much of a dissolvable substance, known as a solute, is mixed with another substance, called the solvent. the standard formula is c = m/v, where c is the concentration, m is the mass of the solute dissolved, and v is the total volume

the density of gold = 19.3 g/cm3

the relation between density and mass and volume is

density = mass / volume

given :

mass of gold = 13 g

density = 13g / volume = 19.3

volume = 13 /19.3 = 0.67 cm^3

thus volume of gold nugget = 0.67 cm^3