Can you guys answer these questions..(science) 1. Place the five substances in order of increasing pH—from most acidic to most
basic.
2. Orange juice has a pH of 4. What color would you expect the paper test strip to
be after it is dipped in a sample of orange juice?
3. Determining the pH of substances such as purple grape juice and catsup using
test strips can be difficult. Why?
4. Tear–free shampoos are advertised as having a pH similar to that of human
tears. What pH would you expect tear–free shampoos to be? Use evidence from
the lab activity to support your response.
5. What is the approximate hydronium ion concentration and hydroxide ion
concentration in a cup of tea? Which is higher? (Refer back to the chart of pH if
you need to.)
6. What is the approximate hydronium ion concentration and hydroxide ion
concentration in bleach? Which is higher?