Zn + H2SO4 === ZnSO4 + H2↑65 2x 0.1g65/x=2/0.1gx=3.25g（1）该黄铜样品中锌的质量3.25g（2）该黄铜样品中铜的质量分数 (10g-3.25g)/10g*100%=67.5%
