Question

calculate the percentage composition of Zn (CO3)(Zn=65,O=16,C=12)​

Answer 1

Answer:

Mass of ZnCO3 = 125

Mass % of Zn = $\frac{65}{125} \times 100$ = 52%

Mass % of C = $\frac{12}{125} \times 100$ = 9.6%

Mass % of O = $\frac{48}{125} \times 100$ = 38.4%

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