Thursday
March 5, 2015

Homework Help: chemistry

Posted by sarah on Sunday, March 28, 2010 at 2:22am.

While researching energy values of fuels, a chemist designed an experiment to find out the heat of combustion of pentane. Using the known hexane heat of combustion of hexane = 4650kJ/mol and the data below calculate the heat of combustion of pentane.

Set up= copper beaker 42.5g filled with 500ml water and spirit burner underneath

DATA:
Initial temp= 26, final temp = 28.75 mass hexane = 10.11g

Initial temp= 26, final temp = 27.33 mass pentane = 8.15g

Specific heat capacity water= 4.18 and copper=0.39

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

chemistry - While researching energy values of fuels, a chemist designed an ...
Chemistry - in a cylinder that was 9.0 mm in diameter and 215 mm in length. I ...
Chemistry - University - Pentane (C5H12) and hexane (C6H14) form an ideal ...
Chemistry - Write the word and chemical equation for the following: Hexane ...
Chemistry - Are my answers correct? C6H14 + 19/2 O2 -> 6 CO2 + 7H2O enthalpy ...
chemistry - Calculate the mass of ethanol that must be burnt to increase the ...
Chemistry - A solution contains 10.0 g pentane, C5H12, 10.0 g hexane, C6H14 and...
college chemistry - Pentane, C5H12, and hexane, C6H14, combine to form an ideal ...
Molar heat of combustion question! - Calculate the molar heat of combustion of ...
Chemistry - C6H14 + 19/2 O2 -> 6 CO2 + 7H2O delta H = -4163 kJ What mass of ...

Members