Respuesta :

shinmin
The word "Relative” in the problem means, actual / total. 
Actual mass of A = 5 g Total mass = (5+80) g = 85 g 
Relative masses are ratio of the masses. 80 g of A/ 5.0 g of B = a ratio of A: B of 16: 1. Therefore the relative mass of B is 16 times that of A. 
jeracoo

Answer:

Relative mass of of A to B is 1/16

Relative mass of of B to A is 16:1

Explanation:

Relative Mass = Mass of (A or B)/ Total Mass

Mass of A = 5g

Mass of B = 80g

Total Mass = 85g = Mass of A + Mass of B = 80 + 5

Ratio mass of A = 5/85 = 0.0588 = 1/17

Ratio mass of B = 80/85 = 0.94117 = 16/17

So as we can see ratio of A to B is 16:1.

So the relative mass of of A to B is 1/16

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