Im taking an organic chemistry lab, must calculate the following: NaBH4 is normally prepared for use in basic aqueous solution. Calculate the mass of a 12% NaBH4 aqueous solution required theoretically to reduce 5.00 g of acetophenone. I am can probably have a go at this question if I can get a hint on how to start ? Anyone point me in the right direction, I dont want the solution but a helping hand in working out the right way to do this. Thanks in advance. Edit: 12 moles NaBH4 / 100 mL water ? x 1 mole NaBH4 / 38 g NaBH4 x ... ?