Question

if 16r of METHANOL are reacted wtih an excess of PBr3, how many grams of CH3Br would be formed if there is a 25% yield?



eqn; CH2OH + PBr3 --> CH3Br + H3PO3

Answer 1

Balance that equation.

Then, how many moles of methanol is 16 grams.

Use the mole ratio to get the moles of CH3Br. Finally, multipy that by .25