Download the App!

Get 24/7 study help with the Numerade app for iOS and Android! Enter your email for an invite.

Get the answer to your homework problem.

Try Numerade free for 7 days

Like

Report

Calculate the enthalpy of solution $\left(\Delta H \text { for the dissolution) per mole of } \mathrm{NH}_{4} \mathrm{NO}_{3} \text { under the conditions described }\right.$in Example $5.6 .$

$\Delta_{\mathrm{r}} H^{\circ}=25 \frac{\mathrm{kJ}}{\mathrm{mol}}$

Chemistry 101

Chapter 5

Thermochemistry

Drexel University

Brown University

Lectures

02:29

Chemistry is the science o…

04:42

In chemistry and physics, …

01:17

The standard enthalpy of f…

01:24

02:30

From the following data, c…

01:04

03:08

The dissolution of $\mathr…

03:05

Using standard entropy val…

00:56

Write the equation for cal…

01:06

Use the data of Table 13.1…

03:10

Use standard enthalpies of…

02:01

Calculate the free-energy …

00:58

The lattice energy* of Nal…

03:14

01:47

Calculate the heat of reac…

04:19

Use bond energy values (Ta…

07:27

Enthalpy changes for the f…

The lattice energy $^{*}$ …

02:05

Calculate the standard ent…

05:05

The $\Delta H_{\mathrm{f}}…

03:39

How much heat is required …

01:16

How do you calculate $\Del…

So we're trying to figure out how much he will be released or absorbed. So the moler entropy of n age for and No. Three ammonium nitrate. And so, if you look at example 5.6, we find that 3.21 grams of ammonium nitrate will absorb one killer jewell of heat. So remember that the positive means that it's an endo thermic reaction. So the the the reaction requires heat. Whereas if this were negative, that means the reaction be XO thermic and it would release. Okay, So if we find the motor mass of N H four No. Three, you can do this by looking at your periodic table or like me. You can look it up on Google. It's in the 80.4 grams per mole. So now we're just gonna conduct a ratio. So we know that 3.21 grams released one killer, droll of heat are absorbed. Sorry. One killer jewel of heat. And so now we're trying to figure out if we dissolved 80.4 grams, which is our one mole, how much heat would be absorbed. So a quick and easy way to do This is if I multiply both sides by X, these are gonna cancel. So I'm gonna have three point to one. And remember that the one is just gonna cancel out, because anything about by one is itself. So 3.21 x equals 80 0.4 Because the X equals 80 points here for about of my 3.21 going that into your calculator and you should get about 24.9. Killer. Jules, Thanks for watching.

View More Answers From This Book

Find Another Textbook

Numerade Educator

Chemistry is the science of matter, especially its chemical reactions, but a…

In chemistry and physics, matter is any substance that has mass and takes up…

The standard enthalpy of formation of $\mathrm{NH}_{3}(\mathrm{g})$ is $-46.…

The standard enthalpy of formation of $\mathrm{NH}_{3}$ is $-46.1 \mathrm{kJ…

From the following data, calculate the average bond enthalpy for the $\mathr…

The dissolution of $\mathrm{NH}_{4} \mathrm{ClO}_{4}(s)$ in water is endothe…

Using standard entropy values, calculate the standard entropy change for a r…

Write the equation for calculating the enthalpy of a reaction. Define all th…

Use the data of Table 13.1 to calculate the enthalpy of solution of LiCl. $$…

Use standard enthalpies of formation from Tables 7.2 and 7.3 and equation (7…

Calculate the free-energy change for the dissolution in water of one mole of…

The lattice energy* of Nal is $-686 \mathrm{kJ} / \mathrm{mol}$ , and the en…

Using standard entropy values, calculate $\Delta_{r} S^{\circ}$ for the form…

Calculate the heat of reaction $\left(\Delta H_{\mathrm{rxn}}^{\mathrm{o}}\r…

Use bond energy values (Table 8.5$)$ to estimate $\Delta H$ for each of the …

Enthalpy changes for the following reactions can be determined experimentall…

The lattice energy $^{*}$ of Nal is $-686 \mathrm{kJ} / \mathrm{mol}$, and t…

Calculate the standard enthalpy of formation of $\mathrm{SO}_{2}(g)$ from th…

The $\Delta H_{\mathrm{f}}^{\circ}$ of $\mathrm{TiI}_{3}(s)$ is $-328 \mathr…

How much heat is required to decompose $89.7 \mathrm{g}$ of $\mathrm{NH}_{4}…

How do you calculate $\Delta H_{\mathrm{rxn}}^{\mathrm{S}}$ from tabulated s…

03:13

A novel process for obtaining magnnesium from sea water involves s. Write a …

01:27

66. The distance between the centers of the two oxygen atoms in an oxygen mo…

02:33

From the balanced molecular equations, write the complete ionic and net ioni…

02:11

Round off each of the following numbers to two significant figures:(a) 5…

06:55

Using complete subshell notation $\left(1 s^{2} 2 s^{2} 2 p^{6}, \text { and…

01:38

How many significant figures are contained in each of the following measurem…

01:56

Indicate whether each of the following can be determined exactly or must be …

00:50

Why are sharp knives more effective than dull knives (Hint: think about the …

03:31

One 55 -gram serving of a particular cereal supplies 270 $\mathrm{mg}$ of so…

03:29

Visit this PhET density simulation (http://openstaxcollege.org/l/16phetmasvo…