joker2305_dl
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- Xu
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tron 100 ml dd H2SO4 20% (D=1,14g/ml) va 400g dd BaCl2 5,2%.Tinh C% cac chat trong dd thu duoc?(Ba=137,H=1,S=32,O=16,Cl=35,5)
mddH2SO4 = 114g => nH2SO4 = 0,23265tron 100 ml dd H2SO4 20% (D=1,14g/ml) va 400g dd BaCl2 5,2%.Tinh C% cac chat trong dd thu duoc?(Ba=137,H=1,S=32,O=16,Cl=35,5)