How many moles of c4f8 are in 265 grams of c4f8?

2. how is heavy water different from normal water

Displacement is the slope of a velocity vs. time graph a. true b. false

A650 ml sodium bromine solution has a bromide ion concentration of 0.245 m. what is the mass (g) of sodium bromide in solution? a) 103.b)0.00155.c)16400.d) 16.4.e) 0.159