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firdous a
firdous a asked in Science & MathematicsChemistry · 1 decade ago

Significant Figures? Im Confuzzled.?

Im Stuck on this Chem Problem.

Can someone tell me how many significant figures are there?

a)0068

b).002

c)60720

d)0.209

e)0.00407

f)27.0036

g)40770.

h)0.3090

i)0.0029

Thanks, and sorry, im new to chem.

2 Answers

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  • ?
    Lv 6
    1 decade ago
    Favorite Answer

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  • karl
    1 decade ago

    to find significant figures, u simply count the number of significant digits, for the 1st one there is 2 significant digits, the zeros inn front of 68 dont really help at all, those zero would be significant only if there were behind a decimal (ex .0068) and you would have four. all trailing zeros and zeros in the middle are always significant. H has 4 signifcant digits, the last number zero is signifcant. im not going to do all the problems, hope this helps

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