Atechnician has been given 250 ml of 15% acetic acid solution. the pharmacist has asked the tech to dilute the solution to 500 ml with sterile water and to label the solution. what percentage should appear on the label

Now consider the reaction when 45.0 g naoh have been added. what amount of naoh is this, and what amount of fecl3 can be consumed by it?

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.