Question

Will medal.

Answer 1

What is the molar mass of Fe2Br3?

1.35 x 102 g/mole

3.27 x 102 g/mole

3.51 x 102 g/mole

8.14 x 102 g/mole

Answer 2

molar mass = grams / number of moles = g/mole

to find moles = g / molar mass

to find mass = g = molar mass / moles

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Fe2Br3 mass = 2moles x mass Fe + 3 moles x mass Br

Answer 3

I'm confused.

Answer 4

elaborate? what's confusing?

Answer 5

Everything