Homework Answers
Enter your answer in the provided bor. When 25.3 mL of 0.500 MH,SO, is added to...
Enter your answer in the provided bor. When 25.3 mL of 0.500 MH,SO, is added to 25.3 mL of 1.00 M KOH in a coffee cup calorimeter at 23.50°C, the temperature rises to 30.17C. Calculate AH of this reaction. (Assume that the total volume is the sum of the individual volumes and that the density and specific heat capacity of the solution are the same as for pure water.) (d for water=1.00 g/ml;c for water = 4.184 J/g °C.) Jimol...
When 16.3 g KOH is dissolved in 94.3 g of water in a coffee-cup calorimeter, the...
When 16.3 g KOH is dissolved in 94.3 g of water in a coffee-cup calorimeter, the temperature rises from 18.9 °C to 30.16 °C. What is the enthalpy change per gram (in J/g) of KOH dissolved in the water? Assume that the solution has a specific heat capacity of 4.18 J/g×K. Water has a density of 1.00 g/ml. Be sure to enter the correct sign (+/-). Enter to 1 decimal place.
1. 50 mL of water at 51.9°C were mixed with 50 mL of water at 23.2°C...
1. 50 mL of water at 51.9°C were mixed with 50 mL of water at 23.2°C in a calorimeter also at 23.2°C. The final temperature was 33.1°C. Assuming that neither the density of water nor its specific heat capacity change with temperature, calculate the total heat capacity of the calorimeter. (density of water = 1.00 g mlº', specific heat capacity=4.18 J g?K=) 2. When 5.00 g of NaOH(s) are added to 100 g of water (using the same calorimeter as...
Calculate the enthalpy (in kJ) per mole of KOH when 3.25 g KOH is added to...
Calculate the enthalpy (in kJ) per mole of KOH when 3.25 g KOH is added to H2SO4 in a coffee cup calorimeter to make 123.2 mL of total solution with density 1.06 g/mL. Assume the specific heat capacity of the solution is 4.184 J/g°C, that no heat is lost to the surroundings and that the final temperature of the solution is 7.52°C higher than the starting temperature.
In a coffee cup calorimeter, 6.70 g of NH4NO3 is mixed with 75.0 g of water...
In a coffee cup calorimeter, 6.70 g of NH4NO3 is mixed with 75.0 g of water at an initial temperature of 25.0 °C. At the end of the dissolution, the final temperature of the mixture is 13.1 °C. With the assumption that the solution has the same specific heat capacity as water and is accompanied by no heat loss to the calorimeter, calculate the enthalpy change for the dissolution of NH4NO3 in kJ/mol. en ott 46.6 94.5 47.2 3.0 80.1
A chemist dissolve a 13.4 g sample of KOH in 115.0 grams of water in a...
A chemist dissolve a 13.4 g sample of KOH in 115.0 grams of water in a coffee cup calorimeter. When she did so, the water temperature increased by 23.8 °C. How much heat energy was required to dissolve the sample of KOH? Calculate the heat of solution in kJ/mol. Assume the specific heat of the solution is 4.184 J/g ·°C. please help with work shown. sci notation and correct sig figs as well
When 27.0 mL of 0.500 M H2SO4 is added to 27.0 mL of 1.00 M KOH in a coffee-cup calorimeter at 23.50°C, the temperature...
When 27.0 mL of 0.500 M H2SO4 is added to 27.0 mL of 1.00 M KOH in a coffee-cup calorimeter at 23.50°C, the temperature rises to 30.17°C. Calculate ΔH of this reaction. (Assume that the total volume is the sum of the individual volumes and that the density and specific heat capacity of the solution are the same as for pure water.) (d for water = 1.00 g/mL; c for water = 4.184 J/g·°C.) Answer: ______ kJ/mol H2O
An 8.000 gram sample of solid NH.NO, was mixed with a 200.00 mL sample of water...
An 8.000 gram sample of solid NH.NO, was mixed with a 200.00 mL sample of water in a coffee cup calorimeter. The water was initially at 20.0°C and the final temperature of the resulting solution was recorded as 17.1°C. Calculate the experimental AHcoln (in units of kJ/mol NH.NO:) for the dissolution of NH NO3 (molar mass = 80.04 g/mol). Assume that no heat is lost to the calorimeter or the surroundings. The density of water is 1.00 g/mL and the...
When 27.4 mL of 0.500 M H2SO4 is added to 27.4 mL of 1.00 M KOH...
When 27.4 mL of 0.500 M H2SO4 is added to 27.4 mL of 1.00 M KOH in a coffee-cup calorimeter at 23.50°C, the temperature rises to 30.17°C. Calculate ΔH of this reaction. (Assume that the total volume is the sum of the individual volumes and that the density and specific heat capacity of the solution are the same as for pure water.) (d for water = 1.00 g/mL; c for water = 4.184 J/g·°C.) kJ/mol H2O
A 3.50 g sample of KOH (at 22.3 °C) is dissolved in a 5.50 M HCl...
A 3.50 g sample of KOH (at 22.3 °C) is dissolved in a 5.50 M HCl solution in a coffee cup calorimeter. The total volume of the resulting solution is 250 mL and its temperature rises from the initial value of 22.3 °C (before KOH addition) to 37.8 °C. Calculate ΔH (in kJ/mol) of the dissolution and neutralization of KOH. Assume that the density of the solution is 1.00 g/mL and that the specific heat of the solution is the...
Enter your answer in the provided bor. When 25.3 mL of 0.500 MH,SO, is added to 25.3 mL of 1.00 M KOH in a coffee cup calorimeter at 23.50°C, the temperature rises to 30.17C. Calculate AH of this reaction. (Assume that the total volume is the sum of the individual volumes and that the density and specific heat capacity of the solution are the same as for pure water.) (d for water=1.00 g/ml;c for water = 4.184 J/g °C.) Jimol...
1. 50 mL of water at 51.9°C were mixed with 50 mL of water at 23.2°C in a calorimeter also at 23.2°C. The final temperature was 33.1°C. Assuming that neither the density of water nor its specific heat capacity change with temperature, calculate the total heat capacity of the calorimeter. (density of water = 1.00 g mlº', specific heat capacity=4.18 J g?K=) 2. When 5.00 g of NaOH(s) are added to 100 g of water (using the same calorimeter as...
In a coffee cup calorimeter, 6.70 g of NH4NO3 is mixed with 75.0 g of water at an initial temperature of 25.0 °C. At the end of the dissolution, the final temperature of the mixture is 13.1 °C. With the assumption that the solution has the same specific heat capacity as water and is accompanied by no heat loss to the calorimeter, calculate the enthalpy change for the dissolution of NH4NO3 in kJ/mol. en ott 46.6 94.5 47.2 3.0 80.1
An 8.000 gram sample of solid NH.NO, was mixed with a 200.00 mL sample of water in a coffee cup calorimeter. The water was initially at 20.0°C and the final temperature of the resulting solution was recorded as 17.1°C. Calculate the experimental AHcoln (in units of kJ/mol NH.NO:) for the dissolution of NH NO3 (molar mass = 80.04 g/mol). Assume that no heat is lost to the calorimeter or the surroundings. The density of water is 1.00 g/mL and the...
Most questions answered within 3 hours.
-
The average length of time between arrivals at a turnpike
toll-booth is 26 seconds. What is...
asked 37 minutes ago -
(a) A piston at 6.1 atm contains a gas that occupies a volume of
3.5 L....
asked 1 hour ago -
Please answer true or false. Words
cannot be changed or added in to make it true...
asked 1 hour ago -
An empty test tube weighs 15.923 grams. Then,
MgCl2•6H2O is added into the test tube. After...
asked 1 hour ago -
Assume memory access is 10 units of time and disk access is
10000 units of time....
asked 2 hours ago -
1. Are all good samples random?
2. Magazines often report surveys giving statistics such as “63%...
asked 2 hours ago -
Under all the various types of market structures, firms
must eventually earn some economic profits for...
asked 2 hours ago -
Consider the following fitness regime for a single locus trait
with two co-dominant alleles: w11 =...
asked 2 hours ago -
A large cable company reports the following.
80% of its customers subscribe to its cable TV...
asked 2 hours ago -
Please answer the question in brief.
Discuss the role of ERP in organizations. Are ERP tools...
asked 2 hours ago -
Discuss the pros and cons of collaborative software such
as SameTime. Does it increase productivity? What...
asked 2 hours ago -
Buying your in-laws a gift because it’s expected is
due to the ____________ motive of gift-giving....
asked 2 hours ago