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samarahbrown6050
15.07.2019 •
Chemistry
What is the percent composition of the u.s quarter, which has the mass of 5.670g and contains 5.198g cu and 0.472g ni
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Ответ:
% composition = (mass of element / total mass) * 100
The total mass of the quarter is given to be 5.670 grams
Mass of Cu = 5.198 grams
Mass of Ni = 0.472 grams
Substitute in the above equation to get the mass percentage of each element as follows:
% of Cu = (5.198/5.670) * 100 = 91.675%
% of Ni = (0.472/5.670) * 100 = 8.325%
Ответ: