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### answer accuracy

Posted: **Fri Oct 05, 2018 12:24 pm**

by **leediane0916**

When I solve problems I don’t round until the very end and keep all my sigfigs but sometimes the answer I get is 0.01-0.02 digits different from the one in the solution manual. Will this be a big problem on the homework/test?

### Re: answer accuracy

Posted: **Fri Oct 05, 2018 12:36 pm**

by **catzxwang**

leediane0916 wrote:When I solve problems I don’t round until the very end and keep all my sigfigs but sometimes the answer I get is 0.01-0.02 digits different from the one in the solution manual. Will this be a big problem on the homework/test?

I would suggest asking your TA, because it depends on what the person grading your work thinks. Also, I believe the solution manual's answers assume that you round throughout your working rather than rounding at the end - so for each calculation you perform, you round to the correct number of sig figs before moving on to the next calculation.

### Re: answer accuracy

Posted: **Fri Oct 05, 2018 12:53 pm**

by **Casandra**

leediane0916 wrote:When I solve problems I don’t round until the very end and keep all my sigfigs but sometimes the answer I get is 0.01-0.02 digits different from the one in the solution manual. Will this be a big problem on the homework/test?

I would ask your TA, because they will be grading our homework and test, therefore some of them are more strict on sig figs than others.

### Re: answer accuracy

Posted: **Fri Oct 05, 2018 1:41 pm**

by **sonalivij**

This typically is not a problem as most periodic tables have slightly different molar masses so being .01 or .02 of is to be expected.

### Re: answer accuracy

Posted: **Fri Oct 05, 2018 5:37 pm**

by **Daniel Bowen 3I**

leediane0916 wrote:When I solve problems I don’t round until the very end and keep all my sigfigs but sometimes the answer I get is 0.01-0.02 digits different from the one in the solution manual. Will this be a big problem on the homework/test?

I don't know about you but my TA said that as long as it is within .1 of the the correct answer you should be fine for the tests.