Answer:
[tex]186.3\text{ g}[/tex]Explanation:
Here, we want to get the mass of 0.90 mol of lead
To get the mass, we use the following formula:
[tex]\text{ mass = No of moles }\times\text{ atomic mass/molar mass}[/tex]The atomic mass of lead is 207 amu (this is obtainable from the periodic table)
Thus, we have the mass as:
[tex]0.90\text{ }\times\text{ 207 = 186.3 g}[/tex]