Asked by Lauren:)

Determine the mass of gold that can be extracted if 25.0g of sodium cyanide is used.
4Au+8NaCN+O2--->4NaAu(CN)2+4NaOH

Answers

Answered by DrBob222
Convert 25.00 g NaCN to moles. moles = grams/molar mass.

Using the coefficients in the balanced equation, convert moles NaCN to moles Au.

Now convert moles Au to grams. g = moles x molar mass.
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