Answer
MgS2O3 has a molar mass of 136.42*g*mol^-1.
so we simply take the quotient....
"Moles of stuff"="Mass of stuff"/"molar mass of stuff"
=(195*cancelg)/(136.42*cancelg*mol^-1)=1.43*1/(mol^-1)=1.43*1/(1/(mol)
=1.43*mol
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MgS2O3 has a molar mass of 136.42*g*mol^-1.
so we simply take the quotient....
"Moles of stuff"="Mass of stuff"/"molar mass of stuff"
=(195*cancelg)/(136.42*cancelg*mol^-1)=1.43*1/(mol^-1)=1.43*1/(1/(mol)
=1.43*mol