NaOH(s) +H^+(aq) +Cl^-(aq --------> H2O(l) + Na^+ (aq) + Cl^-(aq)
Hrxn = H0f products - H0f reactants
= -233.13+609.358 -285.83-(-425.609 +0-233.13)
= 749.14KJ/mole
NaOH(s) +H*(aq) + Cl(aq) → H2O(1) + Na*(aq) + Cl(aq) a. Determine the literature enthalpy of...
Given: 1) NaOH Na+(aq) + OH- (aq) 2) NaOH + H+ Cl-(aq) H2O(l) + Na+(aq) + Cl-(aq) 3) Na+(aq) + OH-(aq) + H+(aq) + Cl-(aq) H2O(l) + Na+(aq) + Cl-(aq) Show that equations 1 and 3 can be added algebraically to give equation 2. We were unable to transcribe this imageWe were unable to transcribe this imageWe were unable to transcribe this image
HCl and NaOH react according to the following equation: HCl (aq) + NaOH → Na+(aq) + Cl-(aq) + H2O(l) In a coffee cup calorimeter, 50mL of 2.00 M HCl was combined with 50mL of 2.05 M NaOH. The temperature of the solution rises from 22 degree C to 36 degrees C. What is the enthalpy change for the reaction (delta H rxn)? What is the molar enthalpy for the reaction? Given: The heat capacity of the calorimeter (Cc) is 14.0...
1- For the following reaction, Na+(aq) + OH-(aq) + H+(aq) + Cl- (aq) à Na+(aq) + Cl- (aq) + H2O (l) Na+(aq) + Cl- (aq), ions not involved in the reaction, are called _________________ions. 2- For the following reaction, Na+(aq) + OH-(aq) + H+(aq) + Cl- (aq) à Na+(aq) + Cl- (aq) + H2O (l) What type of reaction is taking place? ____________________ 3- What is the mass in grams of 1.73 mol of MgBr2? __________ 4- What is the percentage composition...
Problem: Solve for the following enthalpy changes 1) When 5.97 g NaOH(s) is reacted with 200.0 mL of HCl(aq), the temperature increases 17.85 Celsius degrees NaOH(s) + H+ (aq) --> Na(aq) + H2O() AH = ? 2) When 3.18 g NaOH(s) is dissolved in 200.0 mL of water, the temperature increases 4.11 Celsius degrees. NaOH(s) --> Na*(aq) + OH"(aq) AH = ?
15. Determine the net ionic equation for the following chemical reaction: NaOH(aq) + HCl(aq) ----------> NaCl(aq) + H20 hint: NaOH(aq) is strong base HCl(aq) is a strong acid OH-(aq) + H+ (aq) ----> H2O(1) 20H-(aq) + 2C1-(aq) -----> H2O(l) + C12(8) NaOH(aq) + CIO-(aq) -----> C12(g) + O2(g) + H2(g) + Na(s) H+(aq) + NaOH(aq)- H2O(1)+ Na(s) 13. A compound contains 20.24% Al and 79.76% Cl. Calculate the empirical formula. molar masses: Al = 26.98 g/mole and Cl = 35.45...
QUESTION 14 What is the net ionic equation for: HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(1) Option A: HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(1) Option B: Option C: Option D: H*(aq) + Cl(aq) + Nat(aq) + OH (aq) → Na*(aq) + Cl (aq) + H2O(1) H*(aq) + OH (aq) → H20(1) Na (aq) + Cl(aq) → Na*(aq) + Cl(aq) O Option A O Option B Optionc O Option D
Calculate ∆H and ∆U for the reaction 2 Na(s) + 2 H2O(l) → 2 NaOH(aq) + H2(g) Assume standard state conditions (T = 25◦C, p = 1 atm) and ideal gas behavior. Why do ∆H and ∆U differ? (Hint: In this case, ∆H is ∆Hrxn.)
2. Re-arrange as appropriate and combine the first two equations to get the third equation and determine the heat of reaction. Show your workings clearly. (4 pts) NaOH(s) Na+ (aq) + OH-(aq) AH°= -44.0 kJ/mol NaOH(s) + H(aq) + Cl(aq) → H2O(0) + Na*(aq) + Cl(aq) AH--100.1 kJ/mol Na*(aq) + OH (aq) + H*(aq) + Cl'(aq) → H2O(0) + Na+ (aq) + Cl(aq) AH°= ?
Calculate the enthalpy change for the following reactions. Balance the equation and calculate the enthalpy change: 9. MgO(s) + H, (g) + Mg(s) + H,O(1) Mg(s) + 12 0,) ► MgO(s) AH =-602 kJ H,(s) + 0,(9) H,00 AH = –242 kJ 602 kJ - 242 kJ = 360 kJ = AH 10. NaCl(s) + H2O → Na+ (aq) + Cl(aq) NaCl(s) → Nat(g) + CH) Nat(g) + CHg) → Na*(aq) + Cl(aq) AH =? AH = 788 kJ/mol AH...
Thermochemistry 2. Re-arrange as appropriate and combine the first two equations to get the third equation and determine the heat of reaction. Show your workings clearly.(4 pts) AH -44.0 kJ/mol NAOH(s) Na(aq) + OH-(aq) NaOH(s)+ H'(aq) + Cl (aq) H2O() + Na (aq) + Cr(aq) AH=-100.1 kJ/mol H2O()+ Na (aq) + Cl(aq) AH°=? Na (aq)+OH (aq) + H*(aq) + Cl'(aq)