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In high school chemistry, I typically used 6.02*10^23 as Avogadro's number, but in lecture I remember Lavelle saying that we should use 6.022*10^23. I guess we can use that extra sig fig now that we are grown college students.
Allow me to reaffirm the statements of the above responses. I have physical evidence of Dr. Lavelle approval of the use of 6.022*10^23 for Avogadro's number in my notes that I have taken on the first lecture day.
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