Sunday
December 21, 2014

Homework Help: Chemistry (check)

Posted by Mary on Sunday, June 30, 2013 at 6:02pm.

Not sure if these are right

1) What is the Molar Enthalpy of Neutralization (ΔHn) in kJ/mol if 5.00 moles of HCl(aq) (acid) neutralized 5.00 moles of NaOH(aq) (base) and released 13093 J of heat?
13093/5= 2618.6 then convert to kj

2) Calculate the Molar Enthalpy of Neutralization (ΔHn) in kJ/mol of the reaction between a monoprotic acid and a monoprotic base, given the following information:

The temperature change equals 5.06C,
50.0 mL of 1.00 M concentration of Acid
50.0 mL of 1.00 M concentration of Base
Heat capacity of the calorimeter is 6.50 J/C.
The specific heat of water is 4.180 J/gC
5*5*5.06*6.50= 822.25/4.180= 196.7

3) How much heat is gained (in Joules) by the water (qwater) when a chemical reaction takes place in 100.0 mL aqueous solution and has a temperature increase of 13.26 C? (Remember cwater = 4.180 J/Cg)

100.0*13.26= 1326/4.180= 317.22

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chemisty (How do I calculate) - What is the Molar Enthalpy of Neutralization (&#...
chemistry - What is the Molar Enthalpy of Neutralization (Hn) in kJ/mol if 5.00...
science - What is the Molar Enthalpy of Neutralization (Hn) in kJ/mol if 5.00 ...
CHEM LAB - What is the Molar Enthalpy of Neutralization in kJ/mol if 5.00 moles ...
Chemistry LAB 1 - What is the Molar Enthalpy of Neutralization in kJ/mol if 5.00...
Chem Lab - What is the Molar Enthalpy of Neutralization (Hn) in kJ/mol if 5.00 ...
ap chemistry - In neutralization reactions, acid + base ! salt + water HCl can ...
AP Chemistry - In neutralization reactions, acid + base -> salt + water HCL ...
Chemistry - In neutralization reactions, acid + base salt + water HCl can be ...
Chemistry - We conducted a lab with antacids in class the other day and i'm ...

Search
Members