A student conducted an experiment to determine how the freezing point of water is affected when sugar is added to the water. He used three beakers, each filled with 1 cup of water. He added 3 teaspoons of sugar in the first beaker of water, 1 teaspoon of sugar in the second, and no sugar in the last beaker. He then cooled each beaker of water and recorded the freezing temperatures. 1. What is the control in this experiment? ___2. What is the independent variable?___ 3. What is the dependent variable?___

The control in this experiment is the temperature of the water.

The independent variable is the amount of sugar that is put in.

The dependant variable in this experiment is when the water freezes.

Explanation:

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