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Posted by **ALISON** on Wednesday, September 7, 2011 at 1:32am.

1) CF2CL2

express answer using two sig figs

how would i solve for this problem???

thanks!

- CHEMISTRY!!!!!!! HELP PLEASE:) -
**Dr Russ**, Wednesday, September 7, 2011 at 5:36amCalculate the molar mass (M)

the atomic mass of Cl is 35.5, so the fraction (by mass) of Cl in M is

2 x 35.5/M

so the mass (in kg) of Cl in CF2Cl2 is

2 x 35.5 x 24/M

- CHEMISTRY!!!!!!! HELP PLEASE:) -
**chad**, Friday, September 16, 2011 at 2:08pm1701.6

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