Question

20.1 If the relative atomic mass of a bromine atom is 80 u, calculate the mass of 0.5 moles of bromine atoms​

Answer 1

29

hope this answer will help u

Answer 2

Given - Relative atomic mass of bromine atom - 80 u

Number of moles of bromine atoms - 0.5

Find - Mass of 0.5 moles of bromine atoms.

Solution - The atomic mass of bromine is 80 u which is equal to 80 g/mol.

So, 1 mole of bromine atom weighs 80 gram

0.5 mole of bromine atom will weigh - 80*0.5 = 40 gram.

Thus, mass of 0.5 moles of bromine atoms is 40 gram.