Homework Help: chemistry

Posted by Kristy on Wednesday, November 10, 2010 at 5:10pm.

A 100.0 ml sample of 0.300 M NaOH is mixed with a 100.0 ml sample of 0.300 M HNO3 in a coffee cup calorimeter. Both solutions were initially at 35.0 degrees celcius; the temperature of the resulting solution was recorded at 37.0 degrees celcius. Determine the delta H (in units of kJ/mol NaOH) for the neutralization reaction between aqueous NaOH and HNO3. Assume no heat is lost to the calorimeter or the surroundings; and the density and heat capacity of the resulting solution are the same as water.

What is delta H?

chemistry - DrBob222, Wednesday, November 10, 2010 at 9:51pm
0.1 L x 0.300 M NaOH = 0.0300 moles NaOH.
0.1 L x 0.300 M HNO3 = 0.0300 moles HNO3.

Mass water (200 mL) x specific heat water x (Tfinal-Tinitial) = q in joules. This is delta H.
delta H/mol is delta H from above divided by 0.03 mole.
Then you need to put it in kJ/mol for the question.
chemistry - Kristy, Thursday, November 11, 2010 at 8:14am
Ahh I had this right but calculated it wrong. Thanks a lot :)

Answer this Question

Related Questions

Chemistry - A 100.0 ml sample of 0.300 M NaOH is mixed with a 100.0 ml sample of...
chemistry - A 100.0 ml sample of 0.300 M NaOH is mixed with a 100.0 ml sample of...
college chemistry - A 0.300 g sample of an aspirin tablet is used to prepare 100...
MAC1045 - What will be the final temperature of the solution in a coffee cup ...
Chemistry - In a coffee cup calorimeter, 50.00 mL of HNO3 (aq) and 50.00 mL of ...
Chem - In a coffee cup calorimeter, 50.0 mL of 0.100 M AgNO3 and 50.0 mL of 0....
chemistry - What is the pH of the solution that results from mixing the ...
Chemistry - 27.0 mL of 1.00 M HClO4 are mixed with 27.0 mL of 1.00 M LiOH in a ...
CHEMISTRY - In a coffee cup calorimeter 70.0 mL of 0.100 M AgNO3 and 70.0 mL of ...
Chemistry - A quantity of 100 mL of .5M of HCl (aq) is mixed with 100 mL of .5M ...

For Further Reading

First Name:
School Subject:
Answer: