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Charmi
Group Title
Round off the following numbers to two significant digits.
(a) 7.8361
(b) 85.51
(c) 2.85
(d) 9.865
(e) 4.67
(f) 2.75
(g) 6.750
(h) 490.0
(i) 0.006 070
(j) 648 700
(k) 704
(l) 0.599 0
(m) 435
(n) 0.000 16
(o) 0.032 45
(p) 6 807
(q) 0.000 053
(r) 0.070 40
(s) 68
(t) 0.080 5
 2 years ago
 2 years ago
Charmi Group Title
Round off the following numbers to two significant digits. (a) 7.8361 (b) 85.51 (c) 2.85 (d) 9.865 (e) 4.67 (f) 2.75 (g) 6.750 (h) 490.0 (i) 0.006 070 (j) 648 700 (k) 704 (l) 0.599 0 (m) 435 (n) 0.000 16 (o) 0.032 45 (p) 6 807 (q) 0.000 053 (r) 0.070 40 (s) 68 (t) 0.080 5
 2 years ago
 2 years ago

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Charmi Group TitleBest ResponseYou've already chosen the best response.0
someone tell me how to do this
 2 years ago

Denebel Group TitleBest ResponseYou've already chosen the best response.0
http://chemed.chem.purdue.edu/genchem/topicreview/bp/ch1/sigfigs.html
 2 years ago

Agentjamesbond007 Group TitleBest ResponseYou've already chosen the best response.0
2 significant digits means x.xx (2 numbers after the decimal point; even if it is a while number). Simply round from the numbers right to left and stop after the 3rd digit after the decimal place. Example: rounding 3.7456 would be 3.75
 2 years ago

Charmi Group TitleBest ResponseYou've already chosen the best response.0
what abt 4 significant digits
 2 years ago

Agentjamesbond007 Group TitleBest ResponseYou've already chosen the best response.0
Then, you'll need to have 4 digits after the decimal place. The same would be applied, but if say you need to round the number 5, it would be 5.0000 Significant digits (significant figures) are usually used for noting accuracy.
 2 years ago

Charmi Group TitleBest ResponseYou've already chosen the best response.0
oh ok thanks
 2 years ago

Agentjamesbond007 Group TitleBest ResponseYou've already chosen the best response.0
You're Welcome!
 2 years ago

Charmi Group TitleBest ResponseYou've already chosen the best response.0
do you kno how to do scientific notations as well
 2 years ago

Charmi Group TitleBest ResponseYou've already chosen the best response.0
if you do, can you show me how please
 2 years ago

Charmi Group TitleBest ResponseYou've already chosen the best response.0
how do you do it
 2 years ago

Charmi Group TitleBest ResponseYou've already chosen the best response.0
can you giv me an example
 2 years ago

Agentjamesbond007 Group TitleBest ResponseYou've already chosen the best response.0
Scientific notation is basically getting a very big (or small) number, starting from the end (if big) or beginning (if small [decimal]), and count the place values from the initial point to a decimal point after the number. example: 440000 4.4x10^5 Here, you need to put an imaginary decimal point at the end of the number and shift it until you get the number 4.4. Count the place values and that's your x10 exponent. works the same way in a very small number 0.00002 2.0x10^5
 2 years ago
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