Problem: Gahnite is a naturally occurring mineral containing aluminum (Al), oxygen (O), and zinc (Zn). A sample of the pure mineral was analyzed, and the following results obtained (percentages are by mass): % Al = 29.54 %                  % O = 34.75 %                   % Zn = 35.71 % Based on this information find the empirical formula for gahnite.

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Gahnite is a naturally occurring mineral containing aluminum (Al), oxygen (O), and zinc (Zn). A sample of the pure mineral was analyzed, and the following results obtained (percentages are by mass):

% Al = 29.54 %                  % O = 34.75 %                   % Zn = 35.71 %

Based on this information find the empirical formula for gahnite.

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