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thuyhangcute2009
2 năm trước
CẦN RẤT GẤP GẤP VOTE 5 SAO VÀ CTLHN Tính số mol của các chất sau: a. 70g dd NAOH 20% b. 50g dd CuSO4 2M c. 14,5 ml dd Hcm 20% (d=1,1) d. 200 ml dd H2SO4 4,9% (d=1,01)
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