sodium acetate dissolves readily in water according to the following equation
NaC2H3O@(s)?uml; NaC2H3O2(aq)
h= -17.3kj/mol
would this process increse or decrease the temperature of the water?
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sodium acetate dissolves readily in water according to the following equation
When a 5.12-g sample of solid sodium nitrate dissolves in 31.1 g of water in a...
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...
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.
When sodium acetate dissolves in water the resulting pH is above 7. This is because Sodium...
When sodium acetate dissolves in water the resulting pH is above 7. This is because Sodium ion reacts with water to produce hydroxide ions. none of these answers Acetate ion reacts with hydroxide ions to produce excess protons. Sodium ion is the cation of a strong base and acetate is the anion of a weak acid.
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.
Sodium metal reacts with water to produce hydrogen gas according to the following equation: 2Na(s) +...
Sodium metal reacts with water to produce hydrogen gas according to the following equation: 2Na(s) + 2H2O(l)2NaOH(aq) + H2(g) The product gas, H2, is collected over water at a temperature of 20 °C and a pressure of 753 mm Hg. If the wet H2 gas formed occupies a volume of 5.60 L, the number of moles of Na reacted was ____ mol. The vapor pressure of water is 17.5 mm Hg at 20 °C.
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...
T U IF I question. The salt potassium bromide dissolves in water according to the reaction:...
T U IF I question. The salt potassium bromide dissolves in water according to the reaction: KBr(s) + (aq) + Br"(aq) (a) Calculate the standard enthalpy change AH for this reaction, using the following data: AH?KBr(s) --393.8 kJ mol! AHK (aq) --252.4 kJ mol! AH Br"(aq) --121.6 kJ mol' (b) Calculate the temperature reached by the solution formed when 53.9 g of KBr is dissolved in 0.149 L of water at 22.9 °C. Approximate the heat capacity of the solution...
please help with both thank you When sodium acetate dissolves in water the resulting pH is...
please help with both thank
you
When sodium acetate dissolves in water the resulting pH is above 7. This is because Sodium ion reacts with water to produce hydroxide ions. O Sodium ion is the cation of a strong base and acetate is the anion of a weak acid. Acetate ion reacts with hydroxide ions to produce excess protons. none of these answers Knowing the pH of a solution will allow one to know the pOH as well. O True...
When sodium chloride dissolves in water, the ions dissociate: NaCl (s) --> Na+ (aq) + Cl-...
When sodium chloride dissolves in water, the ions dissociate: NaCl (s) --> Na+ (aq) + Cl- (aq) Consider the equation, DG = DH - TDS. For each dissolving process, substitute the signs of DG and DH into the equation and predict the possible sign(s) for the entropy (DS). Explain why you chose this sign(s). Does the sign for entropy change seem to make sense? Explain.
The salt ammonium perchlorate dissolves in water according to the reaction: NH4ClO4(s) NH4+(aq) + ClO4-(aq) (a)...
The salt ammonium perchlorate dissolves in water according to the reaction: NH4ClO4(s) NH4+(aq) + ClO4-(aq) (a) Calculate the standard enthalpy change ΔH° for this reaction, using the following data: NH4ClO4(s) = -295.3 kJ mol-1 NH4+(aq) = -132.5 kJ mol-1 ClO4-(aq) = -129.3 kJ mol-1 kJ (b) Calculate the temperature reached by the solution formed when 33.9 g of NH4ClO4 is dissolved in 0.196 L of water at 23.4 °C. Approximate the heat capacity of the solution by the heat capacity...
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...
When sodium acetate dissolves in water the resulting pH is above 7. This is because Sodium ion reacts with water to produce hydroxide ions. none of these answers Acetate ion reacts with hydroxide ions to produce excess protons. Sodium ion is the cation of a strong base and acetate is the anion of a weak acid.
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.
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...
T U IF I question. The salt potassium bromide dissolves in water according to the reaction: KBr(s) + (aq) + Br"(aq) (a) Calculate the standard enthalpy change AH for this reaction, using the following data: AH?KBr(s) --393.8 kJ mol! AHK (aq) --252.4 kJ mol! AH Br"(aq) --121.6 kJ mol' (b) Calculate the temperature reached by the solution formed when 53.9 g of KBr is dissolved in 0.149 L of water at 22.9 °C. Approximate the heat capacity of the solution...
please help with both thank
you
When sodium acetate dissolves in water the resulting pH is above 7. This is because Sodium ion reacts with water to produce hydroxide ions. O Sodium ion is the cation of a strong base and acetate is the anion of a weak acid. Acetate ion reacts with hydroxide ions to produce excess protons. none of these answers Knowing the pH of a solution will allow one to know the pOH as well. O True...
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