Answer:
0.04 mol
Explanation:
Given data:
Mass of barium = 5.96 g
Moles of barium = ?
Solution:
Formula:
Number of moles = mass/molar mass
Molar mass of barium = 5.96 g/ 137.33 g/mol
Number of moles = 0.04 mol
Thus the number of moles of barium in 5.96 g are 0.04 moles. The chemist weight out the 0.04 moles .
It sound like it is D, but i don’t asure you anything.
Answer:
Given,
Maas of the man = 80 kg
Percentage of water molecules it contains = 70%
Therefore,
Total no. of water molecules mass present in our human body





Answer - The total number of water molecules present in our body is 56 kg.
Hope it helps you!!
#IndianMurga