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 5.26-g sample of solid ammonium nitrate dissolves in 52.5 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 5.12-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. We were unable to transcribe this imageWe were unable to transcribe this imagethermometer stirrer coffee cups containing reaction mixture When a 5.12-g sample of solid sodium nitrate dissolves 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 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...
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.
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 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
Part 1.) A certain reaction has Ho = -26.10 kJ and So = 15.60 J/K. (a) Is this reaction exothermic, endothermic or isothermic (neither)? This reaction is ---Select--- exothermic endothermic or isothermic . (b) Does this reaction lead to a decrease, an increase, or no change in the degree of disorder in the system? This reaction leads to ---Select--- a decrease, an increase, or no change in the disorder of the system. (c) Calculate Go for this reaction at 298 K. If...
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.
thermometer coffee cups containing reaction mixture When a 7.89-9 sample of solid potassium chlorate dissolves in 32.0 g of water in a coffee-cup calorimeter (see above figure) the temperature falls from 20.00 °C to 3.899 °C. Calculate AH in kl/mol KCIOy for the solution process. KCIO,(s) - K*(aq) + CIO,'(aq) The specific heat of water is 4.18 3/ok Aucution - Kl/mol KCO,