When a 5.12-g sample of solid sodium nitrate dissolves in 31.1 g
of water in a coffee-cup calorimeter (see above figure) the
temperature falls from 25.00 oC to 16.37 oC.
Calculate 
H in kJ/mol NaNO3 for the solution
process.
NaNO3(s) 
Na+(aq) + NO3-(aq)
The specific heat of water is 4.18 J/g-K.
Homework Answers
Add Answer to:
When a 5.12-g sample of solid sodium nitrate dissolves in 31.1 g
of water in a...
When a 6.07-g sample of solid lead(II) nitrate dissolves in 31.9 g of water in a...
When a 6.07-g sample of solid lead(II) nitrate dissolves in 31.9
g of water in a coffee-cup calorimeter (see above figure) the
temperature falls from 22.00 oC to 18.47 oC.
Calculate H in kJ/mol Pb(NO3)2 for
the solution process.
Pb(NO3)2(s)
Pb2+(aq) + 2 NO3-(aq)
The specific heat of water is 4.18 J/g-K.
Hsolution = ?kJ/mol
Pb(NO3)2.
When a 5.26-g sample of solid ammonium nitrate dissolves in 52.5 g of water in a...
When a 5.26-g sample of solid ammonium nitrate dissolves in 52.5
g of water in a coffee-cup calorimeter (see above figure) the
temperature falls from 24.00 oC to 17.20 oC.
Calculate H in kJ/mol NH4NO3 for
the solution process.
NH4NO3(s)
NH4+(aq) + NO3-(aq)
The specific heat of water is 4.18 J/g-K.
Hsolution = _________kJ/mol
NH4NO3.
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.
(1): When a 1.48-g sample of solid ammonium nitrate dissolves in 56.4 g of water in...
(1):
When a 1.48-g sample of solid ammonium nitrate dissolves in 56.4
g of water in a coffee-cup calorimeter (see above figure) the
temperature falls from 22.00 oC to 20.09 oC.
Calculate H in kJ/mol
NH4NO3 for the solution process.
NH4NO3(s)
NH4+(aq) +
NO3-(aq)
The specific heat of water is 4.18 J/g-K.
Hsolution
= __kJ/mol NH4NO3.
(2):
The reaction S2O82-(aq) + 3
I-(aq)
2 SO42-(aq) + I3-(aq)
was studied at a certain temperature with the following
results:
Experiment
[S2O82-(aq)] (M)...
When a 4.25 g sample of solid ammonium nitrate dissolves in 60.0 g of water in a coffee-cup calorimeter, the temperatur...
When a 4.25 g sample of solid ammonium nitrate dissolves in 60.0 g of water in a coffee-cup calorimeter, the temperature drops from 22.0 degrees C to 16.9 degrees C. Calculate Delta H kJ/mol NH4NO3 for the solution process NH4NO3 ( s) yields NH4 (there is a plus sign above the four)(aq) + ^ + NO3(negative sign above the three) (aq) Assume that the specific heat of the solution is the same as that of pure water. Express your answer...
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 3.13-g sample of liquid sulfuric acid dissolves in 33.6 g of water in a...
When a 3.13-g sample of liquid sulfuric acid dissolves in 33.6
g of water in a coffee-cup calorimeter (see above figure) the
temperature rises from 22.00 oC to 41.81 oC.
Calculate H in kJ/mol H2SO4 for
the solution process.
H2SO4(l)
2 H+(aq) + SO42-(aq)
The specific heat of water is 4.18 J/g-K.
Hsolution =____ kJ/mol
H2SO4.
When a 4.09-g sample of gaseous hydrogen bromide dissolves in 42.6 g of water in a...
When a 4.09-g sample of gaseous hydrogen bromide dissolves in
42.6 g of water in a coffee-cup calorimeter (see above figure) the
temperature rises from 21.00 oC to 42.94 oC. Calculate deltaH in
kJ/mol HBr for the solution process.
HBr(g) H+(aq) + Br-(aq)
The specific heat of water is 4.18 J/g-K.
delta Hsolution = _____ kJ/mol HBr.
I entered answers 77.27 and 84.81 and both were incorrect
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.
RMy Not 14. 0/4 Submissions Used -/0.1 points thermometer stirrer coffee cups containing reaction mixture When...
RMy Not 14. 0/4 Submissions Used -/0.1 points thermometer stirrer coffee cups containing reaction mixture When a 7.66-g sample of solid iron(III) chloride dissolves in 53.8 g of water in a coffee-cup calorimeter (see above figure) the temperature rises from 21.00 oC to 48.44 °C. Calculate AH in kJ/mol FeCl3 for the solution process. FeCl3(s) Fe3+(aq) + 3 CI'(aq) The specific heat of water is 4.18 J/g-K. kJ/mol FeCl3. AHsolution
When a 6.07-g sample of solid lead(II) nitrate dissolves in 31.9
g of water in a coffee-cup calorimeter (see above figure) the
temperature falls from 22.00 oC to 18.47 oC.
Calculate H in kJ/mol Pb(NO3)2 for
the solution process.
Pb(NO3)2(s)
Pb2+(aq) + 2 NO3-(aq)
The specific heat of water is 4.18 J/g-K.
Hsolution = ?kJ/mol
Pb(NO3)2.
When a 5.26-g sample of solid ammonium nitrate dissolves in 52.5
g of water in a coffee-cup calorimeter (see above figure) the
temperature falls from 24.00 oC to 17.20 oC.
Calculate H in kJ/mol NH4NO3 for
the solution process.
NH4NO3(s)
NH4+(aq) + NO3-(aq)
The specific heat of water is 4.18 J/g-K.
Hsolution = _________kJ/mol
NH4NO3.
(1):
When a 1.48-g sample of solid ammonium nitrate dissolves in 56.4
g of water in a coffee-cup calorimeter (see above figure) the
temperature falls from 22.00 oC to 20.09 oC.
Calculate H in kJ/mol
NH4NO3 for the solution process.
NH4NO3(s)
NH4+(aq) +
NO3-(aq)
The specific heat of water is 4.18 J/g-K.
Hsolution
= __kJ/mol NH4NO3.
(2):
The reaction S2O82-(aq) + 3
I-(aq)
2 SO42-(aq) + I3-(aq)
was studied at a certain temperature with the following
results:
Experiment
[S2O82-(aq)] (M)...
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.
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.
RMy Not 14. 0/4 Submissions Used -/0.1 points thermometer stirrer coffee cups containing reaction mixture When a 7.66-g sample of solid iron(III) chloride dissolves in 53.8 g of water in a coffee-cup calorimeter (see above figure) the temperature rises from 21.00 oC to 48.44 °C. Calculate AH in kJ/mol FeCl3 for the solution process. FeCl3(s) Fe3+(aq) + 3 CI'(aq) The specific heat of water is 4.18 J/g-K. kJ/mol FeCl3. AHsolution
Most questions answered within 3 hours.
-
The pH of a sample of water from a river is 5.0. A
sample of effluent from...
asked 35 minutes ago -
At the beginning of the period, the Fabricating Department
budgeted direct labor of $136,500 and equipment...
asked 1 hour ago -
Please answer all
____ 28. Rent control is usually
justified on the grounds that it protects...
asked 1 hour ago -
PARTS A-D HAVE BEEN ANSWERED. WAS TOLD TO REPOST. ONLY ANSWER
PARTS E and F.
A...
asked 1 hour ago -
2) You are given the task of finding a representation for a
circle in a drawing...
asked 2 hours ago -
STUDY QUESTION: Does use of diet drug fen-phen
(fenfluramine-phentermine) cause valvular heart disease?
HINT: Valvular heart...
asked 2 hours ago -
1. An object weighing 40 N rests on a surface. The coefficient
of friction is 0.35....
asked 3 hours ago -
Investor company owns 35% of investee company voting stock and
accounts for the investment under the...
asked 4 hours ago -
The number of major faults on a randomly chosen 1 km stretch of
highway has a...
asked 5 hours ago -
Consider the competitive environment of Starbuck's, Progressive
Insurance, a manufacturing firm with low turnover, or a...
asked 5 hours ago -
3. Gains from trade
Consider two neighbouring island countries called Euphoria and
Contente. They each have...
asked 7 hours ago -
A business executive has the option to invest money in two
plans: Plan A guarantees that...
asked 10 hours ago