A white powder, consisting of a simple mixture of tartaric acid (C4H6O6) and citric acid (C6H8O7) was analysed to determine the elemental composition. Combustion of a 643.3-mg sample produced 847.2 mg of CO2 and 238.5 mg of H2O.
Use atomic masses: C 12.011; H 1.00794; O 15.9994.
Calculate the % tartaric acid, by mass, in the sample.
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i found this "x(% mass carbon in tartaric) + (1-x)(% mass carbon in citric acid) where x = is the fraction of tartaric acid. "
so far i got x*32% + (1-x)*37.5%
i have no idea what x is.. what's the fraction of tartaric acid?
Use atomic masses: C 12.011; H 1.00794; O 15.9994.
Calculate the % tartaric acid, by mass, in the sample.
_ _ _ _ _ _ _ _
i found this "x(% mass carbon in tartaric) + (1-x)(% mass carbon in citric acid) where x = is the fraction of tartaric acid. "
so far i got x*32% + (1-x)*37.5%
i have no idea what x is.. what's the fraction of tartaric acid?