Question

What is the number of moles of calcium cyanide in 320 g calcium cyanide?

Answer 1

As always, `"Number of moles"-="Mass"/"Molar mass"=???mol`

Explanation:

Number of moles of `Ca(C-=N)_2=(320*g)/(92.11*g*mol^-1)~=3*mol`.

The equation is dimensionally consistent in that `1/(mol^-1)=1/(1/(mol))=mol`, as required for an answer in `"moles."`

This material is used extensively (and very destructively) in the gold mining industry. Solutions of the salt can leach the gold and silver content out of ores.......I would not like to be downwind of such an operation.