what is the molarity of a 30% (vol/vol) solution of H2SO4 (density of H2SO4=1.8g/ml)答案5.5Mwhich of the following acids is the weakest?A.HF kA=6.8*10的-4次方 B.H3PO4 kA= 7.5*10的负三次方 C.HNO2 kA=4.5*10的-4次方 D.CH3COOH kA=1.8*10
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what is the molarity of a 30% (vol/vol) solution of H2SO4 (density of H2SO4=1.8g/ml)答案5.5Mwhich of the following acids is the weakest?A.HF kA=6.8*10的-4次方 B.H3PO4 kA= 7.5*10的负三次方 C.HNO2 kA=4.5*10的-4次方 D.CH3COOH kA=1.8*10
what is the molarity of a 30% (vol/vol) solution of H2SO4 (density of H2SO4=1.8g/ml)答案5.5M
which of the following acids is the weakest?
A.HF kA=6.8*10的-4次方 B.H3PO4 kA= 7.5*10的负三次方 C.HNO2 kA=4.5*10的-4次方 D.CH3COOH kA=1.8*10的-5次方 E.H2S kA=1.1*10的-7次方 这种题如何判断pH啊?
Given Mn2+ +2e- =Mn -1.20V
Zn2+ + 2e- = Zn -0.8V
what is the expression for the equilibrium constant of the spontaneous oxidation reduction reaction?
Keq=10的0.8/0.59次方 求分析及解答公式
the pKa of acid X is 5.the pH of a solution containing acid X and its conjugate base is 6.what is the ratio of the concentration of cojugate base to the concentration of the acid?1
what is the molarity of a 30% (vol/vol) solution of H2SO4 (density of H2SO4=1.8g/ml)答案5.5Mwhich of the following acids is the weakest?A.HF kA=6.8*10的-4次方 B.H3PO4 kA= 7.5*10的负三次方 C.HNO2 kA=4.5*10的-4次方 D.CH3COOH kA=1.8*10