Problem: The mineral galena is composed of lead(II) sulfide and has an average density of 7.46 g/cm3. (a) How many moles of lead(II) sulfide are in 8.32 ft3 of galena? (b) How many lead atoms are in 3.34 dm3 of galena? (Enter your answer in scientific notation.)

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The mineral galena is composed of lead(II) sulfide and has an average density of 7.46 g/cm3

(a) How many moles of lead(II) sulfide are in 8.32 ft3 of galena? 

(b) How many lead atoms are in 3.34 dm3 of galena? 

(Enter your answer in scientific notation.)

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