Question

Suppose you have a calorimeter that contains 100.0 grams of water at an initial temperature of...

Suppose you have a calorimeter that contains 100.0 grams of water at an initial temperature of 25 degrees celsius. A salt (2.19 g, 0.020 moles) is dissolved in the water, and the final temperature is 29 degrees celsius. Calculate the standard heat of solution (on a per mole basis). Was the dissolution exothermic or endothermic?

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
There is 300 grams of water in the 200-gram calorimeter cup (inner can). Both are at...
There is 300 grams of water in the 200-gram calorimeter cup (inner can). Both are at room temperature of 20 degrees Celsius. A 100-gram metal sample with an initial temperature of 90 degrees Celsius is placed in the calorimeter resulting. The resulting final temperature of the system is 30 degrees Celsius. If the calorimeter can has a specific heat of 0.2 cal/g-C degree, determine the specific heat of the metal sample
When 10.0 g KOH is dissolved in 100.0 g of water in a coffee-cup calorimeter, the...
When 10.0 g KOH is dissolved in 100.0 g of water in a coffee-cup calorimeter, the temperature rises from 25.18 ˚C to 47.53 ˚C. Calculate the ∆Hrxn for the dissolution process. Assume that the solution has a specific heat capacity of 4.184 J/gK
A coffee-cup calorimeter initially contains 125 g water at 24.2 degrees celsius. Ammonium Nitrate (10.5 g),...
A coffee-cup calorimeter initially contains 125 g water at 24.2 degrees celsius. Ammonium Nitrate (10.5 g), also at 24.2 degree celsius, is added to the water, and after the ammonium nitrate dissolves, the final temperature is 18.3 degrees celsius.What is the heat of solution of ammonium nitrate in kj/mol? Assume that the specific heat capacity of the solution is 4.18 J/Cg and that no heat is transferred to the surrounds or to the calorimeter.
Dissolving 3.00 g of CaCl2(s) in 200.0 g of water in a calorimeter at 22.4 °C...
Dissolving 3.00 g of CaCl2(s) in 200.0 g of water in a calorimeter at 22.4 °C causes the temperature to rise to 25.8 °C. What is the approximate amount of heat involved in the dissolution, assuming the heat capacity of the resulting solution is 4.18 J/g °C? Is the reaction exothermic or endothermic?
A 3.250g sample of methanol, CH3OH, is combusted un a bomb calorimeter. The temperature of the...
A 3.250g sample of methanol, CH3OH, is combusted un a bomb calorimeter. The temperature of the calorimeter increases by 12.55 degrees celsius. If the heat capacity of the bomb is 850.0 J/degrees celsius and it contains 1.200kg of water, what is the heat envolved per mole of ethanol combusted? The specific heat capaacity of water is 4.184 J/g degrees celsius and the molar mass of methanol is 32.04g/mol.
500 grams of ice at -16 degrees Celsius are dropped into a calorimeter containing 1000 grams...
500 grams of ice at -16 degrees Celsius are dropped into a calorimeter containing 1000 grams of water at 20 degrees Celsius. The calorimeter can is of copper and has a mass of 278 grams. Compute the final temperature of the system, assuming no heat losses.
A calorimeter contains 75.0 g of water at an initial temperature of 25.2 °C. 151.28 g...
A calorimeter contains 75.0 g of water at an initial temperature of 25.2 °C. 151.28 g of copper metal at a temperature of 95.5 °C was placed in the calorimeter. The equilibrium temperature was 36.2 °C. The molar heat capacity of water is 75.4 J / mol °C. Determine the molar heat capacity of the copper.
The aluminum cup inside your calorimeter weighs 40.85 g. You add 49.81 g of water and...
The aluminum cup inside your calorimeter weighs 40.85 g. You add 49.81 g of water and 3.03 g of KCl to the calorimeter. The initial temperature is 20.1oC, and the final temperature is 16.9oC. What is the heat of dissolution for the amounts of salt added, in units of J? Assume that: the calorimeter is completely insulated the heat capacity of the empty calorimeter is the heat capacity of the aluminum cup. the mass of KCl added is small enough...
An insulated aluminum calorimeter vessel of 150 g mass contains 300 g of liquid nitrogen boiling...
An insulated aluminum calorimeter vessel of 150 g mass contains 300 g of liquid nitrogen boiling at 77 K. A metal block at an initial temperature of 303 K is dropped into the liquid nitrogen. It boils away 15.8 g of nitrogen in reaching thermal equilibrium. The block is then withdrawn from the nitrogen and quickly transferred to a second insulated copper calorimeter vessel of 200 g mass containing 500 g of water at 30.1 degrees celsius. The block coolds...
A.The heat change in a chemical reaction at constant _____________ is quantitatively expressed as the change...
A.The heat change in a chemical reaction at constant _____________ is quantitatively expressed as the change of the enthalpy for the reaction. temperature volume pressure amount of mole B.What will be final temperature if you mix the 50.g of water at 0.0oC to 50.g of water at 100.0oC. 75.0 degree Celsius 20.0 degree Celsius 90.0 degree Celsius 50.0 degree Celsius C.Which will be the range of final temperature, Tfinal (oC) if you mix the 50.g of Magnesium metal (S=1.020 J/goC)...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT