Asked by atriletz
Final question..
An alloy used in aircraft construction consists of aluminium, copper and magnesium. An 11.34g sample of alloy was treated with alkali to dissolve the aluminium, leaving a residue of mass 2.73g. This residue was treated with dilute hydrochloric acid solution to dissolve the magnesium. The remaining residue had a mass of 0.90g.
Calculate the percentage composition of alloy.
%X = [(mass X)/mass sample] x 100
mass sample = 11.34g
mass of each of the follwoing is X.
mass Al = 11.34 - 2.73 g = ??
mass Cu = 0.90 g
mass Mg = 2.73 - 0.90 = ??
Post your work if you get stuck.
Thank you!!
An alloy used in aircraft construction consists of aluminium, copper and magnesium. An 11.34g sample of alloy was treated with alkali to dissolve the aluminium, leaving a residue of mass 2.73g. This residue was treated with dilute hydrochloric acid solution to dissolve the magnesium. The remaining residue had a mass of 0.90g.
Calculate the percentage composition of alloy.
%X = [(mass X)/mass sample] x 100
mass sample = 11.34g
mass of each of the follwoing is X.
mass Al = 11.34 - 2.73 g = ??
mass Cu = 0.90 g
mass Mg = 2.73 - 0.90 = ??
Post your work if you get stuck.
Thank you!!
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