Hess's Law

Last updated about 2 hours ago

7 questions

Instructions

As a class, we will be doing the first two questions together. Complete the rest yourself!

Remember if the standard heat of the reaction is negative, the reaction is exothermic. 
Remember if the standard heat of the reaction is positive, the reaction is endothermic.

Hess's Law

Last updated about 2 hours ago

7 questions

Instructions

As a class, we will be doing the first two questions together. Complete the rest yourself!

Remember if the standard heat of the reaction is negative, the reaction is exothermic. 
Remember if the standard heat of the reaction is positive, the reaction is endothermic.

Calculate the standard heat of reaction for the complete combustion of ethanol, C2H5OH(l). Round to the nearest tenths. Put the numbers only.
C2H5OH(l)+3O2(g)→2CO2(g)+3H2O(g)

Round to the nearest tenths. Put the numbers only.

Use the standard enthalpies of formation to determine the change in enthalpy for each of these reactions. Round to the nearest whole number. Put the number only

NaOH(s) +HCl(g) --> NaCl(s) + H2O(g)

Use the standard enthalpies of formation to determine the change in enthalpy for each of these reactions. Round to the nearest tenths. Put the number only.

CH4(g) +2O2(g) --> CO2(g) +2H2O(l)

Hess's Law

Hess's Law

Calculate the standard heat of reaction for the complete combustion of ethanol, C2H5OH(l). Round to the nearest tenths. Put the numbers only.
C2H5OH(l)+3O2(g)→2CO2(g)+3H2O(g)

Round to the nearest tenths. Put the numbers only.

Round to the nearest tenths. Put the numbers only.

Round to the nearest tenths. Put the numbers only.

Use the standard enthalpies of formation to determine the change in enthalpy for each of these reactions. Round to the nearest whole number. Put the number only

NaOH(s) +HCl(g) --> NaCl(s) + H2O(g)

Use the standard enthalpies of formation to determine the change in enthalpy for each of these reactions. Round to the nearest tenths. Put the number only.

CH4(g) +2O2(g) --> CO2(g) +2H2O(l)

Calculate the standard heat of reaction for the complete combustion of ethanol, C2H5OH(l). Round to the nearest tenths. Put the numbers only.
C2H5OH(l)+3O2(g)→2CO2(g)+3H2O(g)

Round to the nearest tenths. Put the numbers only.

Round to the nearest tenths. Put the numbers only.

Round to the nearest tenths. Put the numbers only.

Use the standard enthalpies of formation to determine the change in enthalpy for each of these reactions. Round to the nearest whole number. Put the number only

NaOH(s) +HCl(g) --> NaCl(s) + H2O(g)

Use the standard enthalpies of formation to determine the change in enthalpy for each of these reactions. Round to the nearest tenths. Put the number only.

CH4(g) +2O2(g) --> CO2(g) +2H2O(l)

Use the standard enthalpies of formation to determine the change in enthalpy for each of these reactions. Round to the nearest tenths. Put the number only

2H2S (g) + 3O2(g) -->2H2O (l) + 2SO2(g)

Use the standard enthalpies of formation to determine the change in enthalpy for each of these reactions. Round to the nearest tenths. Put the number only

2H2S (g) + 3O2(g) -->2H2O (l) + 2SO2(g)

Hess's Law

Hess's Law

Calculate the standard heat of reaction for the complete combustion of ethanol, C2H5OH(l). Round to the nearest tenths. Put the numbers only.C2H5OH(l)+3O2(g)→2CO2(g)+3H2O(g)

Round to the nearest tenths. Put the numbers only.

Round to the nearest tenths. Put the numbers only.

Round to the nearest tenths. Put the numbers only.

Use the standard enthalpies of formation to determine the change in enthalpy for each of these reactions. Round to the nearest whole number. Put the number onlyNaOH(s) +HCl(g) --> NaCl(s) + H2O(g)

Use the standard enthalpies of formation to determine the change in enthalpy for each of these reactions. Round to the nearest tenths. Put the number only.CH4(g) +2O2(g) --> CO2(g) +2H2O(l)

Calculate the standard heat of reaction for the complete combustion of ethanol, C2H5OH(l). Round to the nearest tenths. Put the numbers only.C2H5OH(l)+3O2(g)→2CO2(g)+3H2O(g)

Round to the nearest tenths. Put the numbers only.

Round to the nearest tenths. Put the numbers only.

Round to the nearest tenths. Put the numbers only.

Use the standard enthalpies of formation to determine the change in enthalpy for each of these reactions. Round to the nearest whole number. Put the number onlyNaOH(s) +HCl(g) --> NaCl(s) + H2O(g)

Use the standard enthalpies of formation to determine the change in enthalpy for each of these reactions. Round to the nearest tenths. Put the number only.CH4(g) +2O2(g) --> CO2(g) +2H2O(l)

Use the standard enthalpies of formation to determine the change in enthalpy for each of these reactions. Round to the nearest tenths. Put the number only2H2S (g) + 3O2(g) -->2H2O (l) + 2SO2(g)

Use the standard enthalpies of formation to determine the change in enthalpy for each of these reactions. Round to the nearest tenths. Put the number only2H2S (g) + 3O2(g) -->2H2O (l) + 2SO2(g)

Calculate the standard heat of reaction for the complete combustion of ethanol, C2H5OH(l). Round to the nearest tenths. Put the numbers only.
C2H5OH(l)+3O2(g)→2CO2(g)+3H2O(g)

Use the standard enthalpies of formation to determine the change in enthalpy for each of these reactions. Round to the nearest whole number. Put the number only

NaOH(s) +HCl(g) --> NaCl(s) + H2O(g)

Use the standard enthalpies of formation to determine the change in enthalpy for each of these reactions. Round to the nearest tenths. Put the number only.

CH4(g) +2O2(g) --> CO2(g) +2H2O(l)

Calculate the standard heat of reaction for the complete combustion of ethanol, C2H5OH(l). Round to the nearest tenths. Put the numbers only.
C2H5OH(l)+3O2(g)→2CO2(g)+3H2O(g)

Use the standard enthalpies of formation to determine the change in enthalpy for each of these reactions. Round to the nearest whole number. Put the number only

NaOH(s) +HCl(g) --> NaCl(s) + H2O(g)

Use the standard enthalpies of formation to determine the change in enthalpy for each of these reactions. Round to the nearest tenths. Put the number only.

CH4(g) +2O2(g) --> CO2(g) +2H2O(l)

Use the standard enthalpies of formation to determine the change in enthalpy for each of these reactions. Round to the nearest tenths. Put the number only

2H2S (g) + 3O2(g) -->2H2O (l) + 2SO2(g)

Use the standard enthalpies of formation to determine the change in enthalpy for each of these reactions. Round to the nearest tenths. Put the number only

2H2S (g) + 3O2(g) -->2H2O (l) + 2SO2(g)