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5.02 moles of PbNO3 equals how many molecules?

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Final answer:

To find the number of molecules in 5.02 moles of Pb(NO3)2, multiply the number of moles by Avogadro's number, resulting in 30.22 × 1023 molecules of Pb(NO3)2.

Step-by-step explanation:

To calculate the number of molecules in 5.02 moles of Pb(NO3)2, we use Avogadro's number, which is 6.022 × 1023 molecules per mole. Thus, the calculation is as follows:

5.02 moles Pb(NO3)2 × (6.022 × 1023 molecules/mole) = 30.22 × 1023 molecules of Pb(NO3)2.

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