CALORIMETRÍA NH4NO3

CALORIMETRÍA NH4NO3

https://media.pearsoncmg.com/bc/bc_0media_chem/chem_sim/calorimetry/Calor.php

Utilice Nitrato de Amonio para preparar una solución que contenga X gramos de NH4NO3 en 200 mL de Agua.

Cual es la Molaridad de dicha solución?

Partiendo de una temperatura de 20°C, registre el cambio de temperatura que se da durante el proceso de disolución del sólido en agua.

Calcule el cambio de energía para el proceso.

Defina si se trata de un proceso Exotérmico/endotérmico y presente una discusion, con base en las interacciones microscópicas que se dan durante el proceso de disolución.

 




Comments

Post a Comment

Popular posts from this blog

Virtual Lab: Camping Problems (I-II-III)

Virtual Lab: Camping Problem I     La discusión de esta actividad via twitter se llevará a cabo bajo los hashtags:  #FQ-BIO-2020-II #FQ-BIO-VIRTUAL-LAB Measure the enthalpy of a reaction “ Thermochemistry : Camping 1” . You and a friend are hiking the Appalachian Trail when a storm comes through. You stop to eat, but find that all available firewood is too wet to start a fire. From your Chem 106 class you remember that heat is given off by some chemical reactions; if you could mix two solutions together to produce an exothermic reaction, you might be able to cook the food you brought along for the hike. Luckily, being the dedicated chemist that you are, you never go anywhere without taking along a couple chemical solutions, just for times like this. The Virtual Lab contains aqueous solutions of compounds X and Y of various concentrations. These compounds react to produces a new compound, Z, according to the reaction: X + Y --->> Z The f...
Read more

EL PROBLEMA DEL CAFÉ (Virtual Lab: Coffee Problem)

Image
  Coffee Direct link to the problem: http://chemcollective.org/vlab/91  Twitter Hashtags:  #FQ_Virtual_Lab_Coffee During the summer after your first year at Carnegie Mellon ( Unisucre...) , you are lucky enough to get a job making coffee at Starbucks, but you tell your parents and friends that you have secured a lucrative position as a "java engineer." An eccentric chemistry professor (not mentioning any names) stops in every day and orders 200ml of Colombian coffee at precisely 60.0°C. You then need to add enough milk at 3.00°C to drop the temperature of the coffee, initially at 80.0°C, to the ordered temperature. Calculate the amount of milk (in ml) you must add to reach this temperature. Show all your work in the provided spaces. In order to simplify the calculations, you will start by assuming that milk and coffee have the specific heat and density as if water. In the following parts, you will remove these simplifications. Solve now this problem assumin...
Read more

VIRTUAL LAB

Image
 Laboratorio de Química - Virtual!   Esta es la ubicación del servidor del laboratorio http://chemcollective.org/activities/type_page/1   Y aquí tenemos un pequeño video que nos enseña el uso de esta herramienta:  La discusión de esta actividad via twitter se llevará a cabo bajo los hashtags:  #FQ-BIO-2020-II #FQ-BIO-VIRTUAL-LAB Revisar el video tutorial sobre el uso de esta herramienta  Llevar a cabo los siguientes experimentos, reportando los resultados, cálculos, conclusiones y procedimiento en un documento de texto + hoja de cálculo ubicados en sus respectivas carpetas de Google Drive   Stoichiometry Virtual Labs: Glucose Dilution Problem In this activity, students use the virtual lab to create a 0.025M glucose solution from a standard 1M glucose solution. First, they calculate the correct volumes of 1M glucose solution and water to mix together… Acid Dilution Problem ...
Read more