New User Special Price Expires in

Let's log you in.

Sign in with Facebook


Don't have a StudySoup account? Create one here!


Create a StudySoup account

Be part of our community, it's free to join!

Sign up with Facebook


Create your account
By creating an account you agree to StudySoup's terms and conditions and privacy policy

Already have a StudySoup account? Login here

Chm Laboratory Ii

by: Barton Franecki

Chm Laboratory Ii CHM 114

Marketplace > University of Miami > Chemistry > CHM 114 > Chm Laboratory Ii
Barton Franecki
GPA 3.87


Almost Ready


These notes were just uploaded, and will be ready to view shortly.

Purchase these notes here, or revisit this page.

Either way, we'll remind you when they're ready :)

Preview These Notes for FREE

Get a free preview of these Notes, just enter your email below.

Unlock Preview
Unlock Preview

Preview these materials now for free

Why put in your email? Get access to more of this material and other relevant free materials for your school

View Preview

About this Document

Class Notes
25 ?




Popular in Course

Popular in Chemistry

This 6 page Class Notes was uploaded by Barton Franecki on Thursday September 17, 2015. The Class Notes belongs to CHM 114 at University of Miami taught by Staff in Fall. Since its upload, it has received 14 views. For similar materials see /class/205764/chm-114-university-of-miami in Chemistry at University of Miami.

Similar to CHM 114 at UM


Reviews for Chm Laboratory Ii


Report this Material


What is Karma?


Karma is the currency of StudySoup.

You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!

Date Created: 09/17/15
4302011 64500 PM Lab 1 Intro to Volumetric Glassware Accuracy vs Precision Read graduated cylinder at bottom of the curve or meniscus Worked with a volumetric flask a pipet and a buret Measure density by gmL Lab 2 Determination of Ka of an Unknown Weak Acid HA H20 69 H3O A Ka mgoileg x Aqu HA eq PH pKa 09A39eqHAeq PH12 PKa Half Point Equivalence Point slope increasing greatly moles of acid moles of base Lab 3 Chemical Thermodynamics AHf Enthalpy of Formation AHA AHB AHC AHf heat heat capacity x mass x temperature change cal calg C x g x C 1 kcal 4184 kJ To find specific heat 0 O O O O 0 Drop metal in boiling water Transfer to cool water Measure heat transfer Heat lost heat gained Heat lost specific heat x grams x AT Heat gained grams x 1 cal g x AT Lab 4 Acid and Base Titrations Finding the pH equivalence point Indicators detect end points Primary standard 0 O O O 0 High purity Known composition Reacts with known stoichiometry In this experiment is Potassium Acid Phthalate KHP Molarity molesliter 10393 moles10393 liter mmolmL o Mmol base M base x mL base mmol acid g KHP x 103molecular weight KHP o M base g KHP x 103mL base molecular weight KHP Lab 5 Determination of Na2CO3 in Soda Ash 0 CO3 H 9 HCO3 H 9 H2CO3 69 H20 C02 o Back titration 0 Boiling the solution to remove the C02 Excess solution is titrated with NaOH o 2x 10mL acid will be needed to titrate C03239 to HC0339 and HC0339 to H2C03 completely with excess to make sure it is completely titrated Lab 6 Chemical Kinetics o BeerLambert Law 0 A abc A is Absorbance a is molar absorbtivity of phenolphthalein b is the length of the pathway for the light c is the concentration of the solution o Arrhenius Equation 0 k Ae39EaRT A is frequency factor Ea is activation energy R is gas constant 83145 JK mol 0 Rearrange to form nk1k2 EaR1T21T1 0 HalfLife 1212 0 k 0693t12 Lab 7 Analysis of Ascorbic Acid by Redox Titration o End point can be found with an indicator or by potentiometric titration o 12 Principles of Green Chemistry 0 Prevention Atom Economy Less Hazardous Chemical Syntheses Design Safer Chemicals Safer Solvent and Auxiliaries O O O O Design for Energy Efficiency Use Renewable Feedstocks Reduce Derivatives Catalysis Design for Degradation RealTime Analysis for Pollution Prevention Inherently Safer Chemistry for Accident Prevention o Ascorbic Acid Vitamin C C6H806 12 9 C6H606 2 HI o Carbon is Oxidized and Iodine is Reduced o Visual end point blue color o Starch indicator Lab 8 Molecular Mass by Chromatography o Chromatography has a mobile phase and a stationary phase o Chromatography is any technique that employs the general principles of separation based upon interactions at the molecular level between a mobile and a stationary phase whether color is involved or not o Cationexchange chromatography 0 Solution is poured down the resin column and the hydrogen from the solution and cations from the resin will switch The more tightly bound cations will be displaced more slowly All the H ions liberated will be titrated to find how many moles of acid there was the moles of acid equals the moles of metal cations which help find te molecular mass of the salt Lab 9 Spectrometric Analysis of Iron o FeHZO62 3 phen 9 Fephen32 6 H20 2 Fe3 2 NHZOH HCL 2 OH39 ea 2 Fe2 N2 2H 4H20 2Cl39 Spectrophotometer 0 Used to measure quantitatively how much light of a specific wavelength passes through your solution o Absorbance Maximum 0 A 510 nm A og100T o A Absorbance O O O O O O O O O Lab 10 o T Percent Transmittance ppm mg of solvent ppm stock mL solution Determination of Cu2 by Titration Complexometric one or more strongly bonding Lewis bases are attached to the copper cation forming a copper complex H4EDTA is the complexing reagent or titrant 0 EDTA 39 is the anion of the acid Murexide is used as the color indicator which helps show the endpoint Ligands that can form more than one coordinatecovalent bonds are called chelates 0 EDTA is a hexechelate because it can form 6 bonds Cu2In EDTA 39 9 CuEDTA239 In 4302011 64500 PM 4302011 64500 PM


Buy Material

Are you sure you want to buy this material for

25 Karma

Buy Material

BOOM! Enjoy Your Free Notes!

We've added these Notes to your profile, click here to view them now.


You're already Subscribed!

Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'

Why people love StudySoup

Steve Martinelli UC Los Angeles

"There's no way I would have passed my Organic Chemistry class this semester without the notes and study guides I got from StudySoup."

Jennifer McGill UCSF Med School

"Selling my MCAT study guides and notes has been a great source of side revenue while I'm in school. Some months I'm making over $500! Plus, it makes me happy knowing that I'm helping future med students with their MCAT."

Jim McGreen Ohio University

"Knowing I can count on the Elite Notetaker in my class allows me to focus on what the professor is saying instead of just scribbling notes the whole time and falling behind."

Parker Thompson 500 Startups

"It's a great way for students to improve their educational experience and it seemed like a product that everybody wants, so all the people participating are winning."

Become an Elite Notetaker and start selling your notes online!

Refund Policy


All subscriptions to StudySoup are paid in full at the time of subscribing. To change your credit card information or to cancel your subscription, go to "Edit Settings". All credit card information will be available there. If you should decide to cancel your subscription, it will continue to be valid until the next payment period, as all payments for the current period were made in advance. For special circumstances, please email


StudySoup has more than 1 million course-specific study resources to help students study smarter. If you’re having trouble finding what you’re looking for, our customer support team can help you find what you need! Feel free to contact them here:

Recurring Subscriptions: If you have canceled your recurring subscription on the day of renewal and have not downloaded any documents, you may request a refund by submitting an email to

Satisfaction Guarantee: If you’re not satisfied with your subscription, you can contact us for further help. Contact must be made within 3 business days of your subscription purchase and your refund request will be subject for review.

Please Note: Refunds can never be provided more than 30 days after the initial purchase date regardless of your activity on the site.