Homework Answers
Add Answer to:
Part A When a 1.78 g sample of solid sodium hydroxide was dissolved in a calorimeter...
When a 3.11 g sample of solid sodium hydroxide was dissolved in a calorimeter in 130.0...
When a 3.11 g sample of solid sodium hydroxide was dissolved in a calorimeter in 130.0 g of water, the temperature rose from 18.9 oC to 31.3 o C . Calculate Δ H (in kJ/mol NaOH ) for the following solution process: NaOH(s)→Na+(aq)+OH−(aq). Assume that it’s a perfect calorimeter and that the specific heat of the solution is the same as that of pure water.
Part A Calculate the final temperature when 35 mL of water at 50 °C are added to 75 mL of water at 45 °C. Assume de...
Part A Calculate the final temperature when 35 mL of water at 50 °C are added to 75 mL of water at 45 °C. Assume density of water is 1.00 g/mL and no heat is lost to the calorimeter. IVO AQ o 2 ? Part A If the specific heat of methanol is 2.51 J/K-g, how many joules are necessary to raise the temperature of 12 g of methanol from 26°C to 78°C ? IVO AO + O 2 ?...
25. When 5.35 g of slid sodium hydroxide was dissolved in a calorimeter containing 100 g...
25. When 5.35 g of slid sodium hydroxide was dissolved in a calorimeter containing 100 g of water, the temperature rose from 20.5 C to 28.6"C. calculate the ? H ( in KJ/mol NaOH) for the following solution process: NaOH (s)Na (aq) OH (aq) Assume that it is a perfect calorimeter and that the specific heat of the lution is the same as that of pure water (4.184 J/g °C).
5.55 When a 6.50-g sample of solid sodium hydroxide dissolves in 100.0 g of water in...
5.55 When a 6.50-g sample of solid sodium hydroxide dissolves in 100.0 g of water in a coffee-cup calorimeter (Figure 5.18), the temperature rises from 21.6 °C to 37.8 °C. Calculate ?? (in kJ/mol NaOH) for the solution process NaOH(s)-Na"(aq) + OH-(aq) Assume that the specific heat of the solution is the same as that of pure water.
When a 7.46-g sample of solid sodium hydroxide dissolves in 36.9 g of water in a...
When a 7.46-g sample of solid sodium hydroxide dissolves in 36.9 g of water in a coffee-cup calorimeter (see above figure) the temperature rises from 24.00 oC to 68.26 oC. Calculate H in kJ/mol NaOH for the solution process. NaOH(s) Na+(aq) + OH-(aq) The specific heat of water is 4.18 J/g-K. Hsolution = . kJ/mol NaOH.
please help me with #9 and 10 before 9:30 9. If the specific heat of methanol...
please help me with #9 and 10 before 9:30
9. If the specific heat of methanol is 2.51 J/K-g, how many joules are necessary to raise the temperature of 50 g of methanol from 20 °C to 60 °C? 10. When a 3.25 g sample of solid sodium hydroxide was dissolved in a calorimeter in 100.0 g of water, the temperature rose from 23.9 °C to 32.0 °C. Calculate AH (in kJ/mol NaOH) for the following solution process: NaOH(s) —...
2. When a 6.50 g sample of solid sodium hydroxide dissolves in 100.0 g of water...
2. When a 6.50 g sample of solid sodium hydroxide dissolves in 100.0 g of water in a coffee-cup calorimeter (figure 5.18 in your textbook), the temperature rises from 21.6 to 37.8 C. a. Calculate the quantity of heat (in kJ) released in the reaction (the dissolving of NaOH). b. Using the result from part a, calculate the enthalpy of the reaction for the solution of NaOH in kJ/mol NaOH.
Consider the reaction between aqueous sodium hydroxide and silver cation: 2 NaOH (aq) 2 Ag (aq)...
Consider the reaction between aqueous sodium hydroxide and silver cation: 2 NaOH (aq) 2 Ag (aq) -AgaO (s) + H2O ()2 Na (aq) a) Given the data in the table below, calculate the standard enthalpy change (in kJ) for the reaction. Compound Ag (aq) Ag O (s) HO () Na (aq) NaOH (aq) AH" (kJ/mol) 100.0 -50.0 - 275.0 -250.0 -475.0 b) When the reaction was performed in a constant pressure calorimeter, it was observed that the temperature of the...
a) A 430 mL sample of water was cooled from 100.0 oC to 30.0 oC . How much...
a) A 430 mL sample of water was cooled from 100.0 oC to 30.0 oC . How much heat was lost? b) How many kilojoules are required to change the temperature of 26.5 g of water from 19.8 oC to 29.0 oC ? c) Calculate the final temperature when 10 mL of water at 80 oC are added to 20 mL of water at 25 oC d) A piece of metal weighing 2.00 g at a temperature of 41.0 oC was placed in a calorimeter in 19.10 mL of water...
The AH for the solution process when solid sodium hydroxide dissolves in water is 44.4 kJ/mol....
The AH for the solution process when solid sodium hydroxide dissolves in water is 44.4 kJ/mol. When a 13.9-g sample of NaOH dissolves in 250.0 g of water in a coffee-cup calorimeter, the temperature increases from 23.0 °C to °C. Assume that the solution has the same specific heat as liquid water. Given the data in the table below, calculate the AH° for the combustion of ammonia NH3(g) + O2(g) → NO(g) + H2O(1) AH?” (kJ/mol) - 286 90 Substance...
Part A Calculate the final temperature when 35 mL of water at 50 °C are added to 75 mL of water at 45 °C. Assume density of water is 1.00 g/mL and no heat is lost to the calorimeter. IVO AQ o 2 ? Part A If the specific heat of methanol is 2.51 J/K-g, how many joules are necessary to raise the temperature of 12 g of methanol from 26°C to 78°C ? IVO AO + O 2 ?...
25. When 5.35 g of slid sodium hydroxide was dissolved in a calorimeter containing 100 g of water, the temperature rose from 20.5 C to 28.6"C. calculate the ? H ( in KJ/mol NaOH) for the following solution process: NaOH (s)Na (aq) OH (aq) Assume that it is a perfect calorimeter and that the specific heat of the lution is the same as that of pure water (4.184 J/g °C).
5.55 When a 6.50-g sample of solid sodium hydroxide dissolves in 100.0 g of water in a coffee-cup calorimeter (Figure 5.18), the temperature rises from 21.6 °C to 37.8 °C. Calculate ?? (in kJ/mol NaOH) for the solution process NaOH(s)-Na"(aq) + OH-(aq) Assume that the specific heat of the solution is the same as that of pure water.
please help me with #9 and 10 before 9:30
9. If the specific heat of methanol is 2.51 J/K-g, how many joules are necessary to raise the temperature of 50 g of methanol from 20 °C to 60 °C? 10. When a 3.25 g sample of solid sodium hydroxide was dissolved in a calorimeter in 100.0 g of water, the temperature rose from 23.9 °C to 32.0 °C. Calculate AH (in kJ/mol NaOH) for the following solution process: NaOH(s) —...
2. When a 6.50 g sample of solid sodium hydroxide dissolves in 100.0 g of water in a coffee-cup calorimeter (figure 5.18 in your textbook), the temperature rises from 21.6 to 37.8 C. a. Calculate the quantity of heat (in kJ) released in the reaction (the dissolving of NaOH). b. Using the result from part a, calculate the enthalpy of the reaction for the solution of NaOH in kJ/mol NaOH.
Consider the reaction between aqueous sodium hydroxide and silver cation: 2 NaOH (aq) 2 Ag (aq) -AgaO (s) + H2O ()2 Na (aq) a) Given the data in the table below, calculate the standard enthalpy change (in kJ) for the reaction. Compound Ag (aq) Ag O (s) HO () Na (aq) NaOH (aq) AH" (kJ/mol) 100.0 -50.0 - 275.0 -250.0 -475.0 b) When the reaction was performed in a constant pressure calorimeter, it was observed that the temperature of the...
The AH for the solution process when solid sodium hydroxide dissolves in water is 44.4 kJ/mol. When a 13.9-g sample of NaOH dissolves in 250.0 g of water in a coffee-cup calorimeter, the temperature increases from 23.0 °C to °C. Assume that the solution has the same specific heat as liquid water. Given the data in the table below, calculate the AH° for the combustion of ammonia NH3(g) + O2(g) → NO(g) + H2O(1) AH?” (kJ/mol) - 286 90 Substance...
Most questions answered within 3 hours.
-
You are planning for retirement. You plan to work for 20 years.
Starting a year from...
asked 4 minutes ago -
which of the following is capital?
the barn a farmer uses to hold the chickens he...
asked 5 minutes ago -
10. Two forces act on a 3 kg object, the gravitational force and
a second, constant...
asked 16 minutes ago -
Dividing Partnership Net Loss
Leigh Meadows and Byron Leef formed a partnership in which the
partnership...
asked 12 minutes ago -
Discuss how Entrepreneurial leadership style differs
from traditional leadership?
asked 38 minutes ago -
A futuristic design for a car is to have a large solid
disk-shaped flywheel within the...
asked 36 minutes ago -
Solid NaOH is added to a solution of 0.50 M acetic acid until
the pH of...
asked 40 minutes ago -
Which of the following statements is not a characteristic of the
Internal Revenue Code?
A) The...
asked 47 minutes ago -
Say true or false and explain it.
A heap is represented using an array. The array...
asked 57 minutes ago -
Explain how the DNA replication enzyme complex is organized and
functions, please don't copy paste from...
asked 57 minutes ago -
how
can personality contribute to one scoring high on the need to
evaluate measurement by Jarvis?
asked 58 minutes ago -
A high jumper is attempting to jump over a crossbar that is
placed at a height...
asked 1 hour ago