Alarm pheromones in honeybees usually peaks around day fifteen. Though the alarm pheromones contain over 20 different compounds, the key compound is isopentyl acetate,
CH1402. How many moles of isopentyl acetate are contained in a 2.6 ug sample of
isopentyl acetate?
a. 2.0 x 10-8
b. 0.02
c. 50
d. 338

1) in saturated limewater, [h+ ]=3.98x10-13 m. a) find [oh]-/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 2) in butter, [h+ ]=6.0x10-7 m. a) find [oh]-/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 3) in peaches, [oh]=3.16x10-11 m a) find [h+ ]/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 4) during the course of the day, human saliva varies between being acidic and basic. if [oh]=3.16x10-8 m, a) find [h+ ]/ b) what is the ph? / c) is the solution acidic, basic, or neutral? /

Why do cells appear different in distilled water than they do in 10% salt water?

Ineed ! i have no clue how to do this problem.