10. When sodium chloride dissolves in water, the ions dissociate: NaCl (s) = Na+ (aq) + Cl- (aq)
Write ionic equations, similar to the one above, that describe how NaNO3 and NaCH3CO2 each dissociate as they dissolve in water. Include heat as a reactant or product in each equation.
Here is what I answered:
NaNO3 (s) = Na+ + NO3- + heat
NaC2H3O2 + Heat = Na+ + C2H3O2-(ag)
Lab data table attached to determine where to place heat.
10. When sodium chloride dissolves in water, the ions dissociate: NaCl (s) = Na+ (aq) +...
When sodium chloride dissolves in water, the ions dissociate: NaCl (s) --> Na+ (aq) + Cl- (aq) Write ionic equations, similar to the one above, that describe how NaNO3 and NaCH3COO each dissociate as they dissolve in water. Include heat as a reactant or product in each equation.
When sodium chloride dissolves in water, the ions dissociate: NaCl (s) à Na+ (aq) + Cl- (aq) Write ionic equations, similar to the one above, that describe how NaNO3 and NaCH3COO each dissociate as they dissolve in water. Include heat as a reactant or product in each equation
When sodium chloride dissolves in water, the ions dissociate: NaCl (s) Na+ (aq) + Cl- (aq) What is the sign of the change in Gibbs free energy (DG) for each process in the forward direction?
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.
Need help with #6 please! ultur iettl:Mgo(s) HCI(aq) ither absorbed or released for all chemical reactions, and we call this energy the enthalpy of 3 Enersy is . If the enthalpy of reaction is positive, then we say that the energy was absorbed or that eactin was endothermic. It the enthalpy of reaction is negative, then we say that energy was releascd reactio ction was exothermic. Most chemical reactions are exothermic. In this problem, you will or that the ount...
I need help with 11 and 12 please. Data Table Mixture NaCl (s) + H2O (1) T (initial) T, (final) AT (T-T) -.20 25.00 24.80 NaNO, (s) + H2O (1) 24.99 24.11 -.88 NaCH,COO + H2O (1) 24.99 25.91 .82 Use your experimental data to answer the following questions: 7. Calculate AT (AT = T2-T) for each mixture and record the results in the data table. 8. An exothermic process releases heat (warms up), and an endothermic process absorbs heat...
A student dissolves 10.3 g of sodium chloride (NaCl) in 250. g of water in a well-insulated open cup. She then observes the temperature of the water fall from 22.0°C to 21.5°C over the course of 4.4 minutes. Use this data, and any information you need from the ALEKS Data resource, to answer the questions below about this reaction: NaCl(s) - Na (aq) + Cl" (aq) You can make any reasonable assumptions about the physical properties of the solution. Be...
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...
Question 7 (1 mark) Consider the reaction between aqueous sodium hydroxide and silver cation: 2 NaOH (aq) + 2 Ag+ (aq) → Ag20 (s) + H20 (1) + 2 Na+ (aq) a) Given the data in the table below, calculate the standard enthalpy change (in kJ) for the reaction. Compound Ag+ (aq) Ag20 (s) H2O (1) Na+ (aq) NaOH (aq) A/H (kJ/mol) 100.0 - 50.0 - 275.0 - 250.0 -475.0 b) When the reaction was performed in a constant pressure...
Conductivity of Solutions For Che 2A at RCC Introduction Electrolytes are compounds which conduct electricity when dissolved in water. Strong electrolytes consist of ionic compounds which dissociate completely when dissolved in water, AND molecular compounds which completely ionize when dissolved in water. The reactions below illustrate the dissociation reaction of strong electrolytes: Na (aq) + Cl(aq) но NaCl(s) H30 CaBra(s) HO HCl(e) Ca(aq) + 2Br (aa) H*(aq) + C'(aq) Conductivity is a measure of the ability of water to pass...