Question: Zn(OH)2 solid (molecular mass = 99.41 amu) is added to 0.400 L of0.550 M HBr. The resultant solution which is acidic, requires 165mL of 0.500

Zn(OH)2 solid (molecular mass = 99.41 amu) is added to 0.400 L of0.550 M HBr. The resultant solution which is acidic, requires 165mL of 0.500 M NaOH for neutralization. The mass (in mg) of Zn(OH)2that was originally added was numerically?

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