Question

for the balanced equation: 2P + 3Br2 -> 2PBr2, how many moles of P reacted, if 0.175 moles of Br2 are produced​

Answer 1

160 g. Br2 2 moles P
0.175 moles Br2 • —— • ———
1 mole Br2 3 moles Br2

Multiply everything on top and divide by everything multiplied on bottom