Question #1fb34 Chemistry Measurement Significant Figures 1 Answer MM · NickTheTurtle Apr 6, 2017 #~~1.59\ "g"# Explanation: #(40\ "g NaOH")/(1\ "mol NaOH") * (1\ "mol")/(6.022 * 10^23\ "molecules") * (2.4*10^22)\ "molecules NaOH"# #~~ 1.59\ "g NaOH"# Answer link Related questions What are rounding and significant figures? How can I round significant figures when multiplying? How can I round significant figures in Excel? Why should I use significant figures in chemistry? Question #1cb75 When I am doing calculations, how much should I round of the masses in the Periodic Table? What are significant figures and why do they matter? Question #8372c Question #b65fe Question #0a2eb See all questions in Significant Figures Impact of this question 3507 views around the world You can reuse this answer Creative Commons License