Q#2) When 75.6 mL of 0.500 MAGNO, is added to 24.5 mL of 0.350 M (NH4)2SO4,...

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science chemistry

Answer 1

Answer #1

Ans : W (Ag2SO4 ) =2.673 g

Gioven V (AgNO3) =75.6ml; [AgNO3] =0.5M V ((NH4)2SO4) =24.5 ml ; [(NH4)2SO4] =0.350 M

n (AgNO3) = 75.6 x 0.5 =37.8 m mol and n (NH4)2SO4) = 24.5 x 0.350 = 8.575 m mol

The Chemical reaction is ;

2AgNO3(aq) + (NH4)2SO4 (aq) ------------> Ag2SO4 (s) + 2NH4NO3 (aq)

n (t=0) 37.8 8.575 0.00 0.00

n(t = t) 37.8-17 15 0.0 8.575 m mol 17.15m mol

20.3 m mol

n(Ag2SO4) =8.575 m mol so W (Ag2SO4 ) = 8.575 x 311.8 x10^-3 =2.673 g

Answer 2

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