Would the percent yield of Ni(NH3)nCl2 be high, lower, or unchanged if you made the following procedural changes?
a) You performed the synthesis reaction at 100 degrees instead of 60 degrees
b) you dissolved the NiCl2*6H2O in 50 mL of distilled water instead of 10mL
c) You did not wash the Ni(NH3)nCl2 crystals with concentrated NH3 solution before drying them.

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