Question

How many grams in 6.20 x 10^25 atoms of bromine (Br) ? image attached , will give brainliest

Answer 1

Answer:

8239.2g

Explanation:

Given parameters:

Number of atoms in Br  = 6.2 x 10²⁵atoms

Unknown:

Mass of Br = ?

Solution:

From mole concepts, we know that:

       1 mole of a substance contains 6.02 x 10²³ atoms/mol

 Molar mass of Br  = 80g/mol

6.2 x 10²⁵atoms  x $\frac{1}{6.02 x 10^{23} }$ $\frac{mol}{atoms}$ x  80 x $\frac{g}{moles}$  

          = 8239.2g