Question:

How is mass percent related to the relative composition of a compound?

Mass percent composition describes the relative quantities of elements in a chemicalcompound. For a solution, mass percent equals the mass of an element in one mole of the compound divided by the molar massof the compound, multiplied by 100%.

Explanation:

hope it help

1. 1 mole of anything contains 6.022x10^23 pieces  

d  

2. a  

3. c, number  

5. 1.24x10^24atoms / 6.022x10^23atoms/mole = 2moles h2 atoms  

6. fe2br3 mass = 2moles x mass fe + 3 moles x mass br  

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

to find moles = g / molar mass  

to find mass = g = molar mass / moles

2b2t

explanation:

2b2t