An experiment was conducted to determine the density of a rock sample. The table shows a partial record of the experiment. Experimental Record
Mass of Rock 86.5 g
Volume of Water in the Graduated Cylinder 142.5 mL
?

What information should be recorded in the last row of the table?

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

gasoline is a mixture. it contains several different kinds of compounds that can be present in a variety of ratios.