• Support PF! Buy your school textbooks, materials and every day products Here!

Sig figs and qualitative v quantitative

  • Thread starter t5nitro
  • Start date
  • #1
1
0
Hi, if an equation has parentheses attached, do you solve what is inside and then look at this sig figs to tell you the amount in the answer or not? For example, if I had (0.3991 - .02) / 100. would the answer have 1 significant figure (the .02).


I also had a question with quantitative vs qualitative measurements. Would anything with a number attached be considered quantitative? Would quantitative be saying that for example, carbon makes up X% of the body would as well as maybe carbon's atomic mass is also quantitative? And a qualitative would be smell, color etc.?

Thanks
 

Answers and Replies

  • #2
Borek
Mentor
28,441
2,838
Hi, if an equation has parentheses attached, do you solve what is inside and then look at this sig figs to tell you the amount in the answer or not? For example, if I had (0.3991 - .02) / 100. would the answer have 1 significant figure (the .02).
Parentheses are not important here, what is more important is the fact that sigfig rules for addition and subtraction are a little bit different.

I also had a question with quantitative vs qualitative measurements. Would anything with a number attached be considered quantitative? Would quantitative be saying that for example, carbon makes up X% of the body would as well as maybe carbon's atomic mass is also quantitative? And a qualitative would be smell, color etc.?
Qualitative measurement?
 

Related Threads on Sig figs and qualitative v quantitative

  • Last Post
Replies
4
Views
1K
  • Last Post
Replies
2
Views
4K
  • Last Post
Replies
2
Views
562
  • Last Post
Replies
4
Views
7K
Replies
1
Views
1K
Replies
7
Views
2K
  • Last Post
Replies
6
Views
606
Replies
9
Views
43K
  • Last Post
Replies
14
Views
2K
  • Last Post
Replies
3
Views
3K
Top