Vinegar is a solution of acetic acid in water. If a 325 mL bottle of distilled vinegar contains 28.3 mL of acetic acid, what is the volume percent (v/v) of the solution

The volume percent is 8.71 % v/v

Explanation:

The volume percent (v/v) of the solution can be found using the following equation:

   (1)

Where:

: is the solute volume = 28.3 mL

: is the solution volume = 325 mL

By introducing the above values into equation (1) we have the volume percent:

Therefore, the volume percent is 8.71 % v/v.

I hope it helps you!

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.

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