Ba(OH)2 8H₂O(s) + NH4SCN(s) → Ba(SCN)2 (8) + H₂O(l) +SH3(g) In this equation, the 8H₂O in Ba(OH)2 8H₂O indicates the presence of

Question

Ba(OH)2 8H₂O(s) + NH4SCN(s) → Ba(SCN)2 (8) + H₂O(l) +SH3(g)
In this equation, the 8H₂O in Ba(OH)2 8H₂O indicates the presence of eight water molecules. This compound i barium hydroxide octahydrate.
a. Balance the equation.
(Use the lowest possible coefficients for the reaction.)
Ba(OH)2 8H₂O(s) +         NH4SCN(S)
H₂O(l) +    Ba(SCN)2 (s) +   NH3(g)
b. What mass of ammonium thiocyanate (NH4SCN) must be used if it is to react completely with 7.7 g bax hydroxide octahydrate?
Mass=  g

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