If the mass of component A is 2.02 g, the mass of component B is 0.840 g, and th

Question

    
If the mass of component A is 2.02 g, the mass of component B is 0.840 g, and the percent of component C is 19.5%, what is the beginning mass of Panacetin?
    
If the mass of component A is 2.02 g, the mass of component B is 0.840 g, and the percent of component C is 19.5%, what is the beginning mass of Panacetin?

If the mass of component A is 2.02 g, the mass of component B is 0.840 g, and the percent of component C is 19.5%, what is the beginning mass of Panacetin?
If the mass of component A is 2.02 g, the mass of component B is 0.840 g, and the percent of component C is 19.5%, what is the beginning mass of Panacetin?

Explanation / Answer

% composition = mass component / total mass x 100/1
19.5= y / y+2.86 x 100/1
100y=19.5y+55.77

80.5y=55.77

y=55.77 / 80.5 = 0.692795

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