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JamiePena wrote: Which contains more sulfur: 10.0g CaS or 10.0g MgS? If you can explain your choice in words.
MgS
Mg has smaller molar mass therefore it's mass percent in sulphide will be smaller too and the mass percent of sulfur will be higher which leads to the higher overall mass of the sulfur.
Which contains more sulfur: 10.0g CaS or 10.0g MgS? If you can explain your choice in words.
