What is the pH of 5.04 x 10-3 mol L-1 solution of HI? Is it acidic, basic,or neutral?
A. pH 11.7; acidic
B. pH 11.7; basic
C. pH 2.3; acidic
D. pH 2.3; basic
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What is the conjugate acid of NH2-?
A. NH3
B. NH2-
C. NH22-
D. NH2
What is the concentration of H3O+ in a solution that has aconcentration of OH- = 8.9 x 10-9 mol L-1?
A. 1.1 x 10-6mol L-1
B. 8.9 x 10-9mol L-1
C. 8.9 x 10-23mol L-1
D. 1.1 x 105mol L-1
What is the [OH-] in a solution with a pH of 8.97?
A. 1.1 x 10-9 mol L-1
B. 9.3 x 10-6mol L-1
C. 8.97mol L-1
D. 5.03mol L-1
请大家思考，是否只要是狐惑病就一定用甘草泻心汤治疗呢？如果不是，还有可能用什么方？其机理如何？
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