Basic doubts of chemestry

Question

Can we round off in chemestry problems

Answer 1

Yes. You can round up or down in the same way you would in math. However, you have to follow the significant figure rules for accuracy!

Answer 2

Yes, but to do so properly you should do so using significant digits. Using this, the final answer is based on the number of digits found in the least precise number in the calculations.

Reference the following website as one of many that can explain the use of significant figures:

http://chemistry.bd.psu.edu/jircitano/sigfigs.html