Class Notes (836,136)
Canada (509,645)
York University (35,302)
Chemistry (799)
CHEM 1000 (351)

tutorial ch 7 june 6.docx

2 Pages
Unlock Document

CHEM 1000
Hameed A.Mirza

1. A 100g coffee sample (specific heat = 0.385 J/gC) at 100C is added to 50.0g of water at 26.5C what is the final T of the mixture? (T in Fahrenheit could be asked)  q coffee qwater= 0  q coffee - water  100g x 0.385J/gC x (X – 100C) = -50g x 4.184T/gC x (X – 26.5C) c C  38.5X c3850J = -209X +55c9J  X c37.9C 2. 10g ice is heated to 60C… what is the total ene involved in this sample? Specific heat of water 4.184 J/gC and enthalpy of fusion = 6.02 KJ/mol Initial temp = -10C. desity of water is 1.00 g/L  -10C – q 1 0C – q wa2er – q  60C 3 3. The heat of combustion of benzoic acid in -26.42 KJ/g. The combustion of 1.176g sample of benzoic acid causes a temp increase of 4.96C in bomb calorimeter. What is the heat capacity of the of the calorimeter assembly?  q rxn= 1.176g x -26.42 KJ/g = -31.07 KJ = - q cal  q cal x ∆T  so, c = 6.26 KJ/C  Aqueous silver ion reacts with aqueous chloride ion to yield a white precipitate of silver chloride. + - Ag + cl agcl When 10.0 ml of 1.00 M AgNo is ad3ed to 10.0 ml of 1.00 M Nacl solution at 25C in a calorimeter a white precipitate of Agcl forms and the temperature of the aqueous mixture increases to 32.6C Assuming the specific heat of the aqueous mixture is 4.18 J/gC the densit
More Less

Related notes for CHEM 1000

Log In


Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.