GENERAL CHEMISTRY II LAB

WEEK $4$ LAB WORKSHEET ON CHAPTER $6$

$8.$ Practice Exercise on Page $196($First solve Example $6\mathrm{.}6$ and then attempt the practice exercise$).$ A quantity of $1\mathrm{.}922g$ of methanol $(C{H}_{3}OH)$ was burned in a constant$-$volume bomb calorimeter. Consequently, the temperature of the water rose by $4\mathrm{.}20C.$ If the heat capacity of the bomb plus water was $10\mathrm{.}4k\frac{J}{}C,$ calculate the molar heat of combustion of methanol.

$10\mathrm{.}06=0H$

$9.$ Practice Exercise on Page $203$ First solve Example $6\mathrm{.}10$ and then attempt the practice exercise$).$

Benzene $(C_6{H}_6)$ burns in air to produce carbon dioxide and liquid water. Calculate the heat released $($in kilojoules$)$ per gram of the compound reacted with oxygen. The standard enthalpy of formation of benzene is $49\mathrm{.}04k\frac{J}{m}ol.$

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$10$ oil $\frac{?}{{?}_{\frac{?}{?}}}$ and atch un

$=0OH$