If cobalt metal is mixed with excess sulfur and heated strongly, a sulfide is
1 answer:
Answer:
Co2S3.
Explanation:
% of sulphur = 44.94 %
Dividing by the atomic masses:
Co = 55.06 / 58.93 = 0.9343
S = 44.94 / 32.078 = 1.4010
Working out the ratio of Co to S:
1:1.5
= 2:3.
So the empirical formula is Co2S3.
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