What is the volume of a cube with side length of 5.00 cm?
mL

Solution

Given

length of side (l)=5cm=0.05m

Now

by formula

Volume of cube=l^3

=(0.05)^3

=0.000125m^3

we know

1 meter cube =1000l

so 0.000125 metre cube=0.125l

0.124 litre=0.125×1000=125 ml

Therefore the volume of cube is 125 ml.

i believe the answer is a.

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