Chemistry
posted by Bree .
A 50 gram sample of liquid water at 25 degrees C is mixed with 29 grams of water at 45 degrees C. The final temperature of the water is...?

heat gained by cool H2O + heat lost by warm H2O = 0
[mass cool H2O x specific heat H2O x (TfinalTintial)] + [mass warm water x specific heat H2O x (TfinalTintial)] = 0
Substitute and solve for Tf 
32. C
Respond to this Question
Similar Questions

Chemistry
A 230gram sample of metal at 82 degrees centigrade is added to 632 grams of water at 14.4 degrees centigrade in an ideal calorimeter. The final temperature of the system (water and metal) is 22.8 degrees centigrade. What is the heat … 
chemistry HELP
A 46.2 gram sample of copper is heated to 95.4 degrees celcius and then place into a calorimeter containing 75.0 grams of water at 19.6 degrees celcius. The final temp of the water and copper is 21.8 degrees celcius. Calculate the … 
Chemistry
A 30.0 gram sample of water at 280. K is mixed with 50.0 grams of water at 330. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings. 
chemistry
A 10.0 g sample of liquid gallium metal, at its melting point, is added to 50.0g of water. The initital temperature of the water is 24.0 degrees C. If the molar enthalpy of freezing gallium is 5.54 kj/mol, what is the final temperature … 
chemistry
when 84 joules of heat are added to 2.0 grams of water at 15 degrees C, what will be the final temperature of the water? 
science
a 100.0 gram metal sample is heated to a temperature of 110 degrees celcius then placed into a calorimeter containing 100.0 r of pure water (at initial temperature of 23 degrees celcius). after the sample and water reach thermal equalibrium, … 
chemistry
A 100.0 gram sample of iron at 80.0 degrees Celsius was placed in 150 grams of water at 20.5 degrees Celsius. What was the final temperature when thermal equilibrium was reached? 
Chem
A 53.31g sample of water at 88.8 degrees C is added to a sample of water at 23.9 degrees C in a constant pressure calorimeter. If the final temperature of the combined water is 43.3 degrees C and the heat capacity of the calorimeter … 
western michigan university
1050 calories of heat from soybean oil was applied to a 250 gram sample of liquid water with an initial temperature of 25 degrees Celsius. Determine (a) the final temperature of water and (b) the change in temperature. 
Physics 20
1. How much heat energy is required to change 500 grams of water at 100 degrees Celsius to steam at 100 degrees Celsius?