Chemistry Lesson: Significant Digits & Calculations

getchemistryhe... This tutorial explains how to determine the number of significant digits (significant figures, sig figs) required in an answer after performing a calculation. Multiplication & division have one set of rules, while addition & subtraction have another.

[@jennarose14]

Thank you so much! I'm taking (my school's version of) AP Chem next year and your videos are a HUGE help with summer work!

[@jackode7923]

same

[@GetChemistryHelp]

Glad you eventually hunted us down! If you want to help others find these lessons, you can "Like" them and share with a friend or two. Thanks again!

[@fati4115]

Thank you so much, Professor. you explained clear and understandable.

[@GetChemistryHelp]

Actually, the answer for the division example would be 1.5x10^-2 g/mL. Notice that the exponent is negative 2, as 1.5x10^2 would be 150.

[@theextremeofflight]

Thank you so much!

[@missvicbitter]

for your division eg can it also be 1.5 x 10^2 g/mL?

[@lakeilawsheppard803]

Thank you so much!!!