1) what is the balanced equation for the reduction of gold ions in water to solid gold. 2) calculate the pH of lemon juice to three significant, with a hydrogen ion concentration of 3.65x 10^ -3 mole dm -3. Show all steps of your calculations and include all correct units.

Which of these is the result of scientific research and not engineering? a. a new shoe design that features air cushioning for more comfort and protection b. the creation of glass with uv protection. c. a conclusion about diet commonalities among diabetics. d. the development of a smaller, more compact missile.

If you add 5.00 ml of 0.100 m sodium hydroxide to 50.0 ml of acetate buffer that is 0.100 m in both acetic acid and sodium acetate, what is the ph of the resulting solution? acetic acid: ka = 1.8. x 10-5

Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate