A patient is supplied with 100mL of a 25%w/v mouthwash which…
A patient is supplied with 100mL of a 25%w/v mouthwash which they will dilute 1 in 5 with water prior to use, as described on the label: Pour 2mL of mouthwash into the cap provided and then add water to the 10mL line. Rinse your mouth for one-minute up to twice a day. What is the %w/v strength of the mouthwash after the patient has diluted the original solution with water?