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If adding 0.0212 moles of NH4NO3 to 50.099 g of water inside a calorimeter causes the...
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 bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat of combustion of fue...
A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat of combustion of fuels and the energy content of foods. In an experiment, a 0.3320 g sample of naphthalene (C10Hg) is burned completely in a bomb calorimeter. The calorimeter is surrounded by 1.092x103 g of water. During the combustion the temperature increases from 22.54 to 25.04 °C. The heat capacity of water is 4.184 Jg=1°C-1 The heat capacity of the calorimeter was determined...
A 4.1-g sample of Colorado oil shale is burned in a bomb calorimeter, which causes the...
A 4.1-g sample of Colorado oil shale is burned in a bomb calorimeter, which causes the temperature of the calorimeter to increase by 5.0 °C. The calorimeter contains 1.00 kg of water (specific heat of water 4.184 J/g°C) and the heat capacity of the empty calorimeter is 0.10 kJ/°C. How much heat is released per gram of oil shale when it is burned? 21 kJ/g 0 kJ/g 0.19 kJ/g 42 kJ/g 5.2 kJ/g
When 1.3 g of KClO3 was added to 151.1 g of water in a calorimeter, the temperature...
When 1.3 g of KClO3 was added to 151.1 g of water in a calorimeter, the temperature dropped by 0.588 °C. The heat capacity of H2O is 4.184 J/g°C. Assume the specific heat of the solution equals that of pure H2O and that the calorimeter neither absorbs nor leaks heat. What is the molar heat of solution of solid potassium chlorate? Give the answer in kJ.
The aluminum cup inside your calorimeter weighs 41.55 g. You add 59.21 g of 1.0 M...
The aluminum cup inside your calorimeter weighs 41.55 g. You add 59.21 g of 1.0 M acetic acid solution and 50.03 g of 1.0 M sodium hydroxide solution to the calorimeter. Both solutions have an initial temperature of 19.9 °C, and the final temperature after addition is 26.8 °c. What is the molar enthalpy of neutralization, in units of kJ/mol? Assume that: the calorimeter is completely insulated the heat capacity of the empty calorimeter is the heat capacity of the...
32. The following hypothetical circumstance takes place in a coffee-cup calorimeter. Dissolving 3 moles of a...
32. The following hypothetical circumstance takes place in a coffee-cup calorimeter. Dissolving 3 moles of a salt in water results in a 100 gram solution that increases in temperature by 3°C. What is the enthalpy of this reaction? The specific heat capacity of water is 4.184 J/g* °C A. 1.255 kJ/mol B. -225.9 kJ/mol C. -0.4184 k/mol D. -0.2259 kJ/mo
5.876 g of ammonium nitrate (M.W. 80.043 g/mol) was added to a calorimeter containing 99.270 g...
5.876 g of ammonium nitrate (M.W. 80.043 g/mol) was added to a calorimeter containing 99.270 g of water at 24.5 °C. After the NH4NO3 dissolved the final temperature reached was 20.0°C. Calculate 4sys for the dissolution of NH4NO3 The specific heat of water is 4.184 Jg-toc- and the heat capacity of the calorimeter (the "B" constant) is 15.0 J°C-.
A bomb calorimeter has a heat capacity of 675 J/°C and contains 925 g of water
A bomb calorimeter has a heat capacity of 675 J/°C and contains 925 g of water. If the combustion of 0.500 mole of a hydrocarbon increases the temperature of the calorimeter from 24.26°C to 53.88°C, determine the enthalpy change per mole of hydrocarbon. The specific heat of water = 4.184 J g-1 °C-1.Just the answerWhat is the enthalpy change when 175 g of C3H8 are burned in excess O2? C3H8(g) + 5 O2(g) ® 3 CO2(g) + 4 H2O(l) DH°...
4. A styrofoam-cup calorimeter containing 150 g of water is calibrated by generating 1770 J of...
4. A styrofoam-cup calorimeter containing 150 g of water is calibrated by generating 1770 J of heat within it. The temperature increases by 1.67°C. What is the calorimeter constant Ccal (heat capacity of the calorimeter)? c(H20) = 4.184 Jg='K 5. A constant-pressure calorimeter, Where Ccal = 192 JK I. contains 100.0 mL of a 0.200 M aqueous solution of AgNO3. The temperature of the calorimeter and its contents is 22.30°C. Upon addition of 100.0 mL of 0.200 M solution of...
A coffee cup calorimeter is prepared, containing 100.000 g of water (specific heat capacity = 4.184...
A coffee cup calorimeter is prepared, containing 100.000 g of water (specific heat capacity = 4.184 J/g K) at initial temperature 80.000 C. A salt weighing 5.445 g is quickly added. The salt has a molar mass of 250.465 g/mol. The final temperature of the solution is 33.49 C. Assume no heat loss to the surroundings. Assume the specific heat capacity of the solution is equal to that of pure water, and that the mass of the solution is equal...
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 bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat of combustion of fuels and the energy content of foods. In an experiment, a 0.3320 g sample of naphthalene (C10Hg) is burned completely in a bomb calorimeter. The calorimeter is surrounded by 1.092x103 g of water. During the combustion the temperature increases from 22.54 to 25.04 °C. The heat capacity of water is 4.184 Jg=1°C-1 The heat capacity of the calorimeter was determined...
A 4.1-g sample of Colorado oil shale is burned in a bomb calorimeter, which causes the temperature of the calorimeter to increase by 5.0 °C. The calorimeter contains 1.00 kg of water (specific heat of water 4.184 J/g°C) and the heat capacity of the empty calorimeter is 0.10 kJ/°C. How much heat is released per gram of oil shale when it is burned? 21 kJ/g 0 kJ/g 0.19 kJ/g 42 kJ/g 5.2 kJ/g
The aluminum cup inside your calorimeter weighs 41.55 g. You add 59.21 g of 1.0 M acetic acid solution and 50.03 g of 1.0 M sodium hydroxide solution to the calorimeter. Both solutions have an initial temperature of 19.9 °C, and the final temperature after addition is 26.8 °c. What is the molar enthalpy of neutralization, in units of kJ/mol? Assume that: the calorimeter is completely insulated the heat capacity of the empty calorimeter is the heat capacity of the...
32. The following hypothetical circumstance takes place in a coffee-cup calorimeter. Dissolving 3 moles of a salt in water results in a 100 gram solution that increases in temperature by 3°C. What is the enthalpy of this reaction? The specific heat capacity of water is 4.184 J/g* °C A. 1.255 kJ/mol B. -225.9 kJ/mol C. -0.4184 k/mol D. -0.2259 kJ/mo
5.876 g of ammonium nitrate (M.W. 80.043 g/mol) was added to a calorimeter containing 99.270 g of water at 24.5 °C. After the NH4NO3 dissolved the final temperature reached was 20.0°C. Calculate 4sys for the dissolution of NH4NO3 The specific heat of water is 4.184 Jg-toc- and the heat capacity of the calorimeter (the "B" constant) is 15.0 J°C-.
4. A styrofoam-cup calorimeter containing 150 g of water is calibrated by generating 1770 J of heat within it. The temperature increases by 1.67°C. What is the calorimeter constant Ccal (heat capacity of the calorimeter)? c(H20) = 4.184 Jg='K 5. A constant-pressure calorimeter, Where Ccal = 192 JK I. contains 100.0 mL of a 0.200 M aqueous solution of AgNO3. The temperature of the calorimeter and its contents is 22.30°C. Upon addition of 100.0 mL of 0.200 M solution of...
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