Webassign is an online homework system. You sign in, you click on the assignment, you do the work. Even tells you if you're right or wrong (until you run out of tries). It sounded cool, but the guys at NCSU (North Carolina State University) programmed it extremely poorly. Seriously, I can't even DO the chemistry homework.
Honestly, does NCSU doesn't even know what significant figures are?
*Warning: Science Content*
[H] = 5.99e-8 M
Calculate pH with proper significant figures
Answer = 7.222
Come on! Any chemistry teacher knows the proper answer is 7.22
THE ANSWER IS SUPPOSED TO CONTAIN AS MANY SIGNIFICANT FIGURES AS THE PROBLEM'S SMALLEST VALUE!!!!
*End Science Content*
Honestly, does NCSU doesn't even know what significant figures are?
*Warning: Science Content*
[H] = 5.99e-8 M
Calculate pH with proper significant figures
Answer = 7.222
Come on! Any chemistry teacher knows the proper answer is 7.22
THE ANSWER IS SUPPOSED TO CONTAIN AS MANY SIGNIFICANT FIGURES AS THE PROBLEM'S SMALLEST VALUE!!!!
*End Science Content*