During the combustion of 5.00 g of octane, c8h18, 239.5 kcal is released. how much energy is released by the combustion of 1.54 mol of c8h18 ?

Explanation:

Molar mass of is 114.23 g/mol. Therefore, its number of moles are calculated as follows.

       No. of moles =

                             =

                             = 0.043 mol

So, 0.043 moles are releasing 239.5 kcal of heat. Hence, heat released by 1.54 mol will be calculated as follows.

               = 8577.44 kcal

Thus, we can conclude that 8577.44 kcal heat is released by the combustion of 1.54 mol of .

i just calculated it all out, and not including weekends, and all the different days off. as of this school year (2018-2019) students are spending 2198 hours in school this year

the dissociation of nickel hydroxide is follows:

the concentration of hydroxide ion is

the equilibrium constant value of nickel hydroxide is = 6.1 * 10^-^1^6 and thus equilibrium equation can be written as:

thus, concentration of ni is 0.23 * 10^-^4 mol /l