Hello scientists ^_^
I have a question ... Please help me answering this questions in details.

Magnesium bromide contains 39.55% of magnesium by mass. Use this percentage to calculate the mass of bromide in grams contained 35.45 g of magnesium bromide.

Question

Hello scientists ^_^
I have a question ... Please help me answering this questions in details.

Magnesium bromide contains 39.55% of magnesium by mass. Use this percentage to calculate the mass of bromide in grams contained 35.45 g of magnesium bromide.

matt6288 · Answer

do u know mass percent formula

rocklee88 · Answer

please if you know the answer write it ... been studying for the whole day my mind about to explode ...

photon336 · Answer

$$\frac{ 39.55 }{100 }*(35.45g~mg~br) = mass~Mg~grams $$

photon336 · Answer

@RockLee88 that will give you how many grams of Mg are in the sample