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OpenStudy (anonymous):
substance: As(Arsenic) How do I calculate the Molar Mass of this??
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OpenStudy (anonymous):
take the periodic table of elements and look for mass number and that number would be molar mass of arsenic
OpenStudy (anonymous):
@kryten soo 74.92 right?! because my friend said I was wrong....
OpenStudy (anonymous):
Yes 74.92 is correct :)
OpenStudy (anonymous):
thankyou! @sedighn
OpenStudy (anonymous):
sooo HCOOH(formic acid) would be 46.03??
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OpenStudy (anonymous):
M(HCOOH)= 1.008+12.01+16+16+1.008 = 46.026 g mol-1 :)
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