Saturday
April 19, 2014

Homework Help: chemistry

Posted by timmy on Thursday, April 4, 2013 at 9:34pm.

In the reaction between formic acid (HCHO2) and sodium hydroxide, water and sodium formate (NaCHO2) are formed. To determine the heat of reaction, 75.0 mL of 1.07 M HCHO2 was placed in a coffee cup calorimeter at a temperature of 20.8 C, and 45.0 mL of 1.78 M NaOH, also at 20.8 C, was added. The mixture was stirred quickly with a thermometer, and its temperature rose to 25.3 C. Write the balanced chemical equation for the reaction. Calculate the heat of reaction in joules. Assume that the specific heats of all solutions are 4.18 J g-1C-1 and that all densities are 1.00 g mL-1. What is the heat of reaction per mole of acid (in units of kJ mol-1).

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chem - 81. Formic acid HCHO2, is a convenient source of small quantities of ...
CHEMISTRY HELP!! - Formic acid (HCHO2) is a component of bee stings. It is a ...
Chemistry - The pK3 of formic acid is 3.75 A)what is the pH of a buffer in which...
chemistry - When 50.0 mL of 0.050 M formic acid, HCHO2, is titrated with 0.050 M...
Chemistry - Formic acid, HCO2H, is a weak acid. Write a net ionic equation for ...
chemistry - What is the pH of a 2.23 M HCHO2, formic acid, aqueous solution at ...
chemistry - Consider the Ka values for the following acids: Cyanic acid, HOCN, 3...
chemistry - calculate the hydronium ion concentration in 0.125M formic acid, ...
chemistry - The question: Formic acid when warmed with sulfuric acid, decomposes...
Chemistry help needed - How do I prepare 90% formic acid from conc. formic acid...

Search
Members