How many quarts (qt) are there in 2.0 l of gasoline.

              2.112 qt of Gasoline in US

             1.538  qt of Gasoline in Britain

Solution:

Quarts is a liquid capacity which is equal to 0.94 L in US and 1.3 L in Britain.

Now converting 2 L of Gasoline.

In US;

                   1 L of Gasoline  =  1.056 qt of Gasoline

So,

                   2 L of Gasoline  =  X qt of Gasoline

Solving for X,

                     X  =  (2 L × 1.056 qt) ÷ 1 L

                     X  =  2.112 qt of Gasoline

In Britain;

                    1 L of Gasoline  =  0.769 qt of Gasoline

So,

                   2 L of Gasoline  =  X qt of Gasoline

Solving for X,

                     X  =  (2 L × 0.769 qt) ÷ 1 L

                     X  =  1.538 qt of Gasoline

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