Determine the ph at the equivalence (stoichiometric) point in the titration of 27 ml of 0.24 m c6h5sh(aq) with 0.22 m naoh(aq). the ka of thiophenol is 3.2 x 10-7.

6.5 slightly acidic

Explanation:

pH =pka   -  log  [acid] / [base]

pH =6.49   -   log[0.224]/[0.22]

6.59-0.0377

6.45.

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.

when the volume of gas is   changed from   717.73 ml   to 852 ml   the temperature will   change   from 315   c to 452   c

    calculation

this is calculated using the charles law formula

that is,   v1/t1 = v2/t2

          v1=?

        t1 = 315 c   into   kelvin = 315 +273 = 588 k

        v2 = 852   ml

        t2 = 425c + 273 =698 k

make v1   the subject of the formula ( by   multiplying both side by t1)

  v1=( v2 xt1) / t2

v1= (852 ml   x 588 k)/ 698 k= 717.73 ml