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26 March, 04:55

What is the mass percentage of carbon in 5.000 G of sucrose

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  1. 26 March, 06:20
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    17) 8.4 / 20 x 100

    18) 20. 0.5150

    19) 6,50% because (as you said) the law of definite proportions states that regardless of the amount, a compound is always composed of the same elements in the same proportion by mass
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