A photographic "stop bath" contains 140 mL of pure acetic acid in a 500 ml bottle of solution. What is the serverauge by volume concentration of acetic acid? (28.0 %v/v)

21. consider the following chemical reaction: n2+ o2 2 no if 10.0 g of n2 reacts with excess oxygen then how many grams of no can be formed? a) 10.7 g b) 21.4 g c) 32.9 g d) 42.8 g page 4 of 8

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?

Which sample at stp has the same number of atoms as 18 liters of ne at stp