Posted by **john** on Saturday, February 23, 2008 at 5:51pm.

what is the mass in grams?

a) 3.011 x 10^23 atoms F

b)1.50 x 10^23 atoms Mg

c)4.50 x 10^12 atoms Cl

d)8.42 x 10^18 atoms Br

e) 25 atoms w

f) 1 atom Au

can you please explain a and b to me then i'll come back later and see if i did the rest right? Thanks in advance

it needs to be in scientific notation i think.

- chemistry -
**DrBob222**, Sunday, February 24, 2008 at 12:06am
answered above.

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