• 明天就考试了.快帮下我吧,马上睡觉了谢谢了

    JJJ Mon, 03 Nov 2008 12:16:25 +0000

    17.5g的zn和H3PO4反响,然后生成Zn3(PO4)2和氢气.他先让我求需要多少H3PO4.我算完了.第二问说如果H3PO4是3mol的溶液那我需要多少升,就用第一问的答案
    原题是if 17.5g of zinc metal are reacted with phosphoric acid, h3po4(aq),then zinc phosphate,zn3(po4)2 (aq), and h2 are produced,
    1.how many moles of phosphoric acid are required这个我会
    2.if the phosphoric acid is a 3.00molar solution, how many liters are needed?详细解释下 3.00molar solution.

  • # 1

    JJJ Mon, 03 Nov 2008 12:32:31 +0000

    我知道了.不用回答了

  • # 2

    兔子喜欢某酸钾 Mon, 03 Nov 2008 12:40:25 +0000

    囧·········

  • # 3

    兔子喜欢某酸钾 Mon, 03 Nov 2008 12:42:26 +0000

    你是暂住民or公民···？
    Attached Images

  • # 4

    670330219 Mon, 03 Nov 2008 22:29:51 +0000

    楼上那图片是什么仪器……