Why straws are used to drink soft drinks?

Aqueous solution of phosphoric acid with a density of 1 g mL^(-1) containing 0.05% by weight of phosphoric acid is used to impart taste to many soft drinks. What is the molarity of phosphoric acid used in soft drinks ?

Why shockers are used in vehicles?

The sugar substitute especially used in cold foods and soft drinks

if the concentration of the hydrogen ion in soft drink is 3xx10^-3 M, calculate its pH.