Answer:
[tex]1.39\times 10^{17} [/tex] moles of water in [tex] 2.5\times 10^{18} g[/tex] of water.
Explanation:
Mass of water = [tex]m = 2.5\times 10^{18} g[/tex]
Molar mass of water = M = 18 g/mol
Moles = n = [tex]\frac{m}{M}[/tex]
[tex]n=\frac{2.5\times 10^{18} g}{18 g/mol}=1.39\times 10^{17} moles[/tex]
So, there are [tex]1.39\times 10^{17} [/tex] moles of water in [tex] 2.5\times 10^{18} g[/tex] of water.
