## SI units for exam

Katherine Chhen 3I
Posts: 53
Joined: Fri Sep 28, 2018 12:15 am

### SI units for exam

Are we required to put the correct number of significant figures for the exam to get full credit?

005388369
Posts: 73
Joined: Sat Sep 28, 2019 12:16 am

### Re: SI units for exam

Yes. I heard that he will take points off if you don't get the sig figs correct.

Jamie Hwang 2F
Posts: 104
Joined: Thu Jul 25, 2019 12:16 am

### Re: SI units for exam

Professor Lavelle has a link to this page on his website that is all about sig figs and how to use them and I found that really helpful rather than having to look online and trying to remember everything.

Sally kim 4F
Posts: 53
Joined: Thu Jul 25, 2019 12:17 am

### Re: SI units for exam

Definitely use sig figs. When you do use sig figs on his tests, make sure to only apply it on the final answer instead of the values obtained throughout the problem.

Pablo 1K
Posts: 118
Joined: Sat Feb 02, 2019 12:15 am

### Re: SI units for exam

Yes, and it varies how many you use, typically the same amount as of a given amount of some substance. EX: 100 g of CAC2 (problem continues on), the sig figs here would be 3 due to the (100).

Kassidy Ford 1I
Posts: 103
Joined: Sat Aug 17, 2019 12:16 am
Been upvoted: 1 time

### Re: SI units for exam

To elaborate on the above comment, usually you round sig figs to the least amount of sig figs given in the problem. This is to make the answer as accurate as possible.

Reina Robles 2B
Posts: 71
Joined: Fri Aug 09, 2019 12:16 am

### Re: SI units for exam

Thanks for all the information everyone! Also I think this is the link for the SI info that was mentioned earlier:

https://lavelle.chem.ucla.edu/wp-conten ... OUT_SF.pdf

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