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octoberchick1011
How do you calculate the number of atoms from a given mass of an element? For example: How many atoms are in a sample of Lead that weighs 33.12 grams? Please explain & show your work!!? (: Thanks!
1. Find the no of mole of lead by \[\text{no. of mole} = \frac{\text{mass}}{\text{molar mass}}\] 2. Find the no. of atoms by multiplying the no. of moles you found by Avogadro's constant