On a lab exam, you have to find the concentrations of the monoprotic (one proton per molecule) acids ha and hb. you are given 43.5 ml of ha solution in one flask. you titrate this flask of ha solution with 87.3 ml of 0.0906 m naoh. calculate the molarity of the ha solution
the correct answer option is b) 2.0 m.
we are given the number of grams of naoh (sodium chloride) which are dissolved in 750 milliliters of water and we are to find its molarity.
we know the formula of molarity:
molarity = (mass * 1000) / (volume * molecular mass)
volume = 750 ml = 750 cm
molecular mass = 40
mass = 60 grams
substituting these values in the above formula:
molarity = = 2.0 m
87 kilograms =191.8 pounds