About 1 pint (480 mL) of blood is taken when you donate. It takes about 10 minutes. The whole process-including answering questions and having a short exam-takes up to an hour. Donated blood is tested to make sure that it is safe to use.
Soda is an unhealthy beverage because it's high in calories and sugar but low in vitamins and minerals. Coca-Cola is one example of a type of soda that's sugary and packed with calories, but Coke Zero is one alternative that is sugar-free.
The pH of coke, diet coke and coke zero is approximately 3. Published research in peer reviewed publications puts coke as the most acidic of the three. The acidity of these beâ¦verages is due in large part to the presence of phosphoric acid as an added ingredient. Phosphoric acid is a weak acid.