We did a titration in class with 0.1M NaOH as the titrant and 0.7M HCl as the analyte. The titration had an initial biuret reading of 0.00 mL and a final biuret
reading of 12.40 mL, using phenolphthalein as an indicator.
What volume of acid was used?

Show all work and include units. Answer should be rounded to correct significant
figures.

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

the answer is 1 i believe

b.

the accuracy of the data.

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