Homework Help: CHEMISTRY

Posted by Sarah on Tuesday, May 1, 2012 at 10:39pm.

A 22.2-g piece of Al (which has a molar heat capacity of 24.03 J/mol°C) is heated to 84.6°C and dropped into a calorimeter containing water (the specific heat capacity of water is 4.18 J/g°C) initially at 23.5°C. The final temperature of the water is 27.8°C. Calculate the mass of water in the calorimeter.

CHEMISTRY - DrBob222, Tuesday, May 1, 2012 at 11:16pm
heat lost by Al + heat gained by water = 0

[mass Al x specific heat Al x (Tfinal-Tinitial)] + [mass H2O x specific heat H2O x (Tfinal-Tinitial)] = 0
Substitute and solve for the only unknown in the problem (which is mass H2O)

Answer this Question

Related Questions

Chemistry - How much heat is released when 75.0 g of steam at 100.0°C is ...
chemistry - A 25.0 g piece of copper at 90.0 C is placed in 100.0 g of water at ...
Physics - A piece of copper with mass 2.5kg is heated from 30degree celcius to ...
Chem. Find specific heat capacity. - A piece of lead with a mass of 27.3 g was ...
chemistry please help - A 52.0 g piece of copper at 110.0 C is placed in 75.0 g...
Chemistry - Calculate the heat (in kJ) required to transform 58.60 g of ...
CHEMISTRY - Given that the specific heat capacities of ice and steam are 2.06 J/...
chemistry - Given that the specific heat capacities of ice and steam are 2.06 J/...
chemistry - Data obtained from lab (neutralization): H2SO4: C =1.0mol/l V = 30 ...
chemistry - How much energy (in kilojoules) is needed to heat 5.45g of ice from...

For Further Reading

First Name:
School Subject:
Answer: