Using the unit analysis method demonstrate the solution to t

Using the unit analysis method, demonstrate the solution to the following: An emergency room physician orders 0.75 L of 0.9% saline solution over 4 hours for a patient suffering from dehydration. If 1 litre is equal to 1000 millilitres, how many millilitres of the solution are required?

Solution

As stated 0.75L of the solution is required. To convert it into millilitres,

1 litre=1000 millilitres

=>0.75 L = 0.75*1 L = 0.75*1000 ml

=>0.75 L = 750 ml

or 750 litres = 750 millilitres