How many atoms of palladium (Pd) is 400 g of palladium?

Answer 1

To find the number of atoms in 400 grams of palladium (Pd), first determine the molar mass of palladium, which is approximately 106.42 g/mol. Then, divide 400 g by the molar mass to find the number of moles: ( 400 , \text{g} \div 106.42 , \text{g/mol} \approx 3.76 , \text{mol} ). Finally, multiply the number of moles by Avogadro's number ((6.022 \times 10^{23} , \text{atoms/mol})) to find the total number of atoms: ( 3.76 , \text{mol} \times 6.022 \times 10^{23} \approx 2.26 \times 10^{24} ) atoms of palladium.