Question

What mass of kbr (in grams) should you use to make 300.0 ml of a 1.50 m solution of kbr?

Answer 1

mass of kbr which should use to make 300ml of a 1.50m solution of kbr is calculated as follows

step one calculate the number moles of Kbr
that is (1.50 x 300) /1000=0.45 moles
mass= molar mass x moles
119 g/mol ( molar mass of Kbr) x 0.45 moles= 53.55g