How many moles of lead (pb) atoms are in 354 g pb? 9.72 × 10^-25 mol 0.585 mol 1.71 mol 3.52 × 10^23 mol

Molar mass Pb = 207.2 g/mol

1 mole 207.2 g
( moles Pb) 354 g

moles Pb = 354 x 1 / 207.2

moles Pb = 354 / 207.2

= 1.71 moles 

hope this helps!

The answer is 1.82 j/g°c                  

Electrical charges of ionic bonds