The ethyl acetate solution containing the mixture used in this experiment had a concentration of 20.0 g/L of benzoic acid. 1. Recovery of benzoic acid:

Amass of 100.0 g of solute is dissolved in water so that 850. ml of a 0.7500 m solution has been prepared. what is the molar mass of the solute?

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line