2. k. Molarity, normality, molality
What mass of CHa in grams, is required to react with 96.0 grams of 027
S. A 15.6 g sample of benzene is mixed with excess nitric acid. We isolate 12.0 g of
C6H5NO2. What is the percent yield of CoHoNO2 in this reaction? (2points)
4. Calculate the volume of a 0.225 M solution of potassium hydroxide, KOH,
required to react with 0.215 g of acetic acid, CH3COOH? (2points)
5. An excess of AgNO3 reacts with 185.5 mL of an AlCla solution to give 0.3259
of AgCl. What is the concentration, in moles per liter, of the AlCl2 solution?
(2points)
6. Calculate the volume of pure water that used to dilute 100 mL of 12 M NaOH to
4.75 M. (2points)

Which explanation is true about what happens to a ray of light when it strikes a mirror? a. a light ray is transmitted toward a mirror at a certain angle. the light ray is then reflected by the mirror at an equal angle but in the opposite direction of the transmitted ray. b. an incident ray strikes a mirror at an angle with a line perpendicular to the mirror. the light ray is then reflected at an angle equal to the angle of incidence but on the opposite side of the perpendicular line. c. a reflecting ray strikes a mirror at an angle with a line perpendicular to the mirror. the light ray is then refracted at an angle equal to the angle of the reflecting ray and on the same side of the perpendicular line. d. an incident ray strikes a mirror at an angle with a line parallel to the mirror. the light ray is then transmitted at an angle equal to the angle of incidence but on the opposite side of the parallel line. you so much! : -d take the time to try and answer correctly.

All forces cause motion? true or false

Calculate the concentration of all species in a 0.165 m solution of h2co3.