A sample of lead has a mass of 150.0 g what amount of lead in moles does the sample contain

0.723 mol

Explanation:

Mole -

Moles is denoted by given mass divided by the molecular mass,

Hence,

n = w / m

n = moles,

w = given mass,

m = molar mass.

From the information of the question,

w = 150.0 g

As we known the molar mass of lead is -

m = 207.2 g/mol

Hence, the value for the sample of mole can be calculated by using the above formula,

n = w / m

putting the respective values,

n = 150.0 g / 207.2 g/mol = 0.723 mol