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

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