Question

How can you find the relative mass of an object given the mass in grams? For example quarters, nickels, dimes etc.

Answer 1

Answer
You divide the mass of the object by the mass of the comparison object.
Explanation:
Relative values
Let's take an easy example. What are the relative values of quarters, dimes, nickels in terms of cents?
You divide every value by the value of a cent. Then,
The result tells us that the relative value of a quarter is 25 times that of a cent, a dime has ten times the relative value, and a nickel has five times the relative value.
Relative mass
Let's say that the masses of these coins are: quarter = 5.67 g; dime = 2.27 g; nickel = 5.00 g; penny = 2.50 g.
What are the masses of these coins relative to the mass of a dime?
We get
Quarters:dimes:nickels:cents=5.67 g:2.27 g:5.00 g:2.50 g
$=\frac{5.67g}{2.27g}.\frac{2.27}{2.27g}:\frac{5.00g}{2.27g}=2.50:1:2.20:1.10$
Thus, compared to a dime, the relative masses are: quarter = 2.50, nickel = 2.20, and cent = 1.10.