Calculate the concentration: 2a) 45g of sodium hydroxide in 3dm3 of solution.

2b) 0.256g of sodium chloride in 500cm3 of solution.

Calculate the ratio of h+ ions to oh– ions at a ph = 7. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of oh– ions at a ph = 7? mol/l what is the ratio of h+ ions to oh– ions at a ph = 7? : 1

How does the motion of particles in a gas change as the gas cools

Which of the following words describe the reality that the universe looks the same from various perspective