To convert 72.71 grams to pounds, multiply the mass in grams by 0.00220462, the conversion factor, and adjust the final answer to four significant figures, resulting in 1.603×10-1 pounds.
To convert grams to pounds, you can use the conversion factor that 1 gram is approximately equal to 0.00220462 pounds. When converting 72.71 grams to pounds, we multiply the mass in grams by this conversion factor:
72.71 grams × 0.00220462 pounds/gram = 0.1603 pounds.
To express this answer with four significant figures, we adjust the decimal placing accordingly. Since the conversion factor has four significant figures after the decimal, our final answer should too: 1.603×10-1 pounds.