How much potassium bromide , in the grams,should be added to the water to prepare 0.50L of the solution with a molarity of 0.125 m

Question

anonymous · Answer

molarity=moles/liters of solution
moles=molarity*liters
         =0.125M*0.5L

They ask you for the answer in grams, so you use the molecular weight of potassium bromide to convert moles to grams.

baby456 · Answer

how do uyou do that

anonymous · Answer

dimensional analysis: 
molecular weight=gram per mole
molecular weight= gram/mole
find the molecular weight of potassium bromide from the periodic table

baby456 · Answer

is it14.87525

baby456 · Answer

grams

baby456 · Answer

could you answer another question

anonymous · Answer

how did you get that answer?

anonymous · Answer

Rather, just tell me the values you calculated for number of moles and for molecular weight of KBr