B. The melting point of silicon is determined in four separate trials. The results are 386.75 K,
386.95 K, 386.73 K and 386.27K.
1) Calculate the average melting point of sulfur.
386.68 K
2) Calculate the four absolute deviations.
0.07 K, 0.27 K, 0.05 K, 0.41 K
3) Calculate the average absolute deviation
0.20
4) Calculate the percent deviation.
0.052 %

h

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)

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

hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?