3. Calculate Delta H formation of (Show your calculations) a. NH_(4)Cl b. (NH_(4))_(2)SO_(4)

Question

3. Calculate Delta H formation of (Show your calculations) a. NH_(4)Cl b. (NH_(4))_(2)SO_(4)

Answer 1

To calculate the standard enthalpy of formation (

) for a compound, we need to use the standard enthalpies of formation of its constituent elements in their standard states. The formula for the standard enthalpy of formation is:

Let's calculate

for each compound:### a.

The standard enthalpies of formation for the elements in their standard states are:-

:

-

:

-

:

The formation reaction for

is:

Using the standard enthalpies of formation:

Given that the standard enthalpy of formation of

is

:

### b.

The standard enthalpies of formation for the elements in their standard states are:-

:

-

:

-

:

-

:

The formation reaction for

is:

Using the standard enthalpies of formation:

Given that the standard enthalpy of formation of

is

:

So, the standard enthalpies of formation are:a.

b.

Soru

3. Calculate Delta H formation of (Show your calculations) a. NH_(4)Cl b. (NH_(4))_(2)SO_(4)

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