Cyclohexane (c6h12) is a hydrocarbon (a substance containing only carbon and hydrogen) liquid. which of the following will most likely dissolve in cyclohexane to form a solution? ch2cl2hinabrch3ch2ch2ch2ch3

CH₃CH₂CH₂CH₂CH₃

Explanation:

Cyclohexane is a nonpolar compound. There is a rule that states that "like dissolves like" meaning polar is soluble in polar and nonpolar is soluble in nonpolar.

CH₂Cl₂. This compound is polar

HI. This compound is slightly polar (dipole moment = 0.38 D)

NaBr. This compound is ionic (great difference in electronegativity between the atoms).

CH₃CH₂CH₂CH₂CH₃. This compound is nonpolar, and the one that will most likely dissolve cyclohexane.

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

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.