c߿}DDˮx

֪Rc

    ԓ}ͰˮxƽƄӼӋˮxĚxӻxӵĝȡҪµ֪RҎ

    1. Kwc(H+) c(OH-)ˮc(H+)c(OH-)ˮԵġ

    2. Jc(H+)c(OH-)10-7 molLpH7ҺһҺܰpH7ДһҺAԵķֽ羀^c(H+)c(OH-)ĴС

3. ֪ˮеc(H+)c(OH-)ܴ_ҺAȿ()ҺҲljA(A)Һ

4. ʲô|lԴˮxƽ⣿ƽƄ

(1) AԴˮxƽʹˮxƽƄc(H+)c(OH-)w½ҺpHֵʾc(H+)|ģͨ^ˮxӷe(Kw) ĹʽӋˮxc(OH-)wc(H+)wc(OH-)wAҺpHֵʾc(H+)tˮxc(H+)wAH+

    (2) ˮ}ԴˮxƽʹˮxƽƄӣW ֻһNxˮtc(H+)c(OH-)pˮtȣҲܲˮԵ}ҺpHֵʾˮxc(H+)W(cAҺͬ)ˮʉAԵ}ҺpOHֵʾˮxc(OH-)W(cҺͬ)

(3) ضȿӰˮxƽˮxᷴضˮxƽƄWKWpHֵc(H+)wc(OH-)wؕrˮxӷe KW10-14100rKW10-12

    6ژOϡAҺˮxɺҕc(H+)108 mol / L}JpH8teˣҺpHֵڳؕrС7ӋҺpHֵrҪ]ˮxc(H+)c(OH)Oˮxc(H+)c(OH)x mol / Ltˮxӷeɵó´ʽ(108x)x1014108xx21014xѺСˣx2СɺԲӋ108x1014x106ԓϡ}pH6

       1ˮ2580rĚxӝǰɂĴС                  (  C   )

       A.                 B.                 C. С                D. ܿ϶

       2ҜpH12ijҺˮxc(OH-)             (  CD )

A1.010-7 mol?L-1 B1.010-6 mol?L-1

C1.010-2 mol?L-1 D1.010-12 mol?L-1

       3ˮx^̞H2OH+OH- ڲͬضƽⳣK(25)1.0l0-14K(35)2.1l0-14tД_                                (  D  )

           A. c(H+)Sضȵ߶

    B. 35rc(H+)c(OH-)

    C. ˮxa(25)a(35)

    D. ˮx

4ijضȕryüˮеc(H+)2.410-7 mol / Ltc(OH-)        (  A  )

       A. 2.410-7 mol / L               B. 0.110-7 mol / L

       C.  mol / L            D. c(OH-)o_

       5pH4FeCl3ҺpH10K2CO3Һˮxȷքea1a2tĴСPϵ                                                         (  C  )

    A. a1a2          B. a1a2          C. a1a2         D.oД

       6ķNҺˮxɵĚxӝ֮(١âڡâۡâ)    (  A  )

       pH0}                   0.1 mol / L}

       0.01 mol / LNaOHҺ        pH11NaOHҺ

       A. 1101001000               B. 011211

       C. 14131211                 D. 141323

       790rˮxӷeKw3.810-13ԓضȕrˮpH                 (  B  )

A. 7         B. С7          C. 7          D. o_

       880rˮpHֵС7 ʲô

       . ֪Ҝؕrˮеc(H+)c(OH-)10-7 mol / Lˮx(H2OH+OH-)ᷴʜضߵ80xʹc(H+)c(OH-)10-7 mol / LpH7(ֻض߼ˮxĽo1ֻ֣c(H+)10-7 mol / LpH7ԓ}0)


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