Gold is reacted with Bromine gas according to the reaction 2Au + 3Br2 → 2AuBr3 . Use the data table below to determine the percent yield of Gold Bromide. Mass of Gold Mass of Bromine Theoretical Yield Actual Yield

39.4g 15.0g ? 12.3

A: 97.29%

B: 45.02%

C: 89.5%

D: 86.42%

NEED HELP FAST!

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

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.