Stoichiometric ratio l.jpg
This presentation is the property of its rightful owner.
Sponsored Links
1 / 13

Stoichiometric Ratio PowerPoint PPT Presentation


  • 162 Views
  • Uploaded on
  • Presentation posted in: General

The stoichiometric ratio between two reactants will be determined experimentally. Stoichiometric Ratio. Stoichiometry is the branch of chemistry that deals with the ratio between reactants and products in a chemical reaction. The net result can be described by a balanced chemical reaction.

Download Presentation

Stoichiometric Ratio

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Stoichiometric ratio l.jpg

The stoichiometric ratio between two reactants will be determined experimentally.

Stoichiometric Ratio


Principles l.jpg

Stoichiometry is the branch of chemistry that deals with the ratio between reactants and products in a chemical reaction.

The net result can be described by a balanced chemical reaction.

Principles


Principles3 l.jpg

This balanced equation gives us valuable information about the reaction.

Principles


Principles4 l.jpg

Principles

1Mg to 2 HCl

3 Reactants to 2 Products

1 Mg to 1 MgCl2

2 HCl to 1 MgCl2


Principles5 l.jpg

In this Lab we will use the heat given off by a reaction to determine its stoichiometry.

Principles


Principles6 l.jpg

The amount of heat given off, or Q, can be graphed versus the number of moles of reagent.

From the graph the stoichiometry can be determined

Principles


Calculations l.jpg

Number of moles of reactant:

Moles = M V Moles = (0.5mol/L)(0.010L)

Change in Temperature:

DT = Tf – TiDT = 32oC – 23oC

Calculations


Procedure l.jpg

Measure appropriate amounts of NaOCl and Na2SO3

Determine the temperatures of both reagents.

Do Not use the same thermometer for both reagents

Procedure


Procedure12 l.jpg

Pour the NaOCl into a clean styrofoam cup.

Add the Na2SO3 and record the maximum temperature that the mixture reached.

Ensure that the reagents are well mixed

Procedure


Safety l.jpg

It is important that you always keep your safety goggles on.

Safety


  • Login