15 1/1 point Which of the following reactions has a positive AS? Select all correct answers. Na(s) + 1/2 Cl2(g) →>NaCl(s) N2(g) + 3H2(g) 2 NH3(g) NaCl(s) Na+ (aq) + Cl¯(aq) - → NaCl(s) NaCl(I) -
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- Consider the following data. For the acid: H2A Ka = 4.21⋅10−44.21⋅10-4 Calculate the Kb for HA-. Report your answer in scientific notation using 3 sig figs.Use the thermodynamic quantities given below to calculate the theoretical ΔH for this reaction: NH3 + HCl → NH4Cl ΔH°f for NH3 (aq) = - 80.29 kJ/mol ΔH°f for HCl (aq) = - 167.2 kJ/mol ΔH°f for NH4+ (aq) = - 132.5 kJ/mol ΔH°f for Cl- (aq) = - 167.2 kJ/molI think I have 3a, 3b done but I would like to see what you guys say is the correct answer, I am stuck on 3c and if you could do 4 as well so I can check my answers with yours that would be greatly appreciated
- CH.8 #8 - Please fill in the blank, cirlce your answer for thumbs up!Use the thermodynamic quantities given below to calculate the theoretical ΔH for this reaction: NH3 + HCl → NH4Cl ΔH°f for NH3 (aq) = - 80.29 kJ/mol ΔH°f for HCl (aq) = - 167.2 kJ/mol ΔH°f for NH4+ (aq) = - 132.5 kJ/mol ΔH°f for Cl- (aq) = - 167.2 kJ/mol I found this answer to be -52.21 kJ/mol 6. What is the percent error of experimental results when using the theoretical value calculated in Question 5? I need help finding thisUse the thermodynamic quantities given below to calculate the theoretical ΔH for this reaction: NH3 + HCl → NH4Cl ΔH°f for NH3 (aq) = - 80.29 kJ/mol ΔH°f for HCl (aq) = - 167.2 kJ/mol ΔH°f for NH4+ (aq) = - 132.5 kJ/mol ΔH°f for Cl- (aq) = - 167.2 kJ/mol I found this answer to be -52.21 kJ/mol 6. What is the percent error of experimental results when using the theoretical value calculated in Question 5? I need help finding this please
- I am having trouble finding the delta S rxn of ammonium chloride. I am using stand thermodynamic values found online, but I can't find the value for NH4OH. I am using 94.6 for NH4CL and 69.94 for H2O. From this, I am supposed to find delta G using 411.43 as my q sys, 3.55 as my delta T, and 8.229 as my delta H.Ksp for Co(OH)2 is 5.92x10^-1519 g of unknown organic sample was dissolve in 640 mL of Dicloromethane (DCM). The boiling point of benzene was increased by 3.78oC. Determine the molecular weight of the unknown sample? Kb of DCM = 2.42oC/m Bb of benzene = 39.6 oC density of benzene = 1.33 g/mL at 25 °C Round your answer to the nearest whole number, no units required.
- 1. Which of the following compounds can form hydrogen bonds with water?a. octaneb. HClc. NaCld. acetic acid2. Maria wants to determine the percent water content of an unknown hydrate of AB. Given the following data:mass of empty crucible - 12. 2784gmass of AB · xH20 + crucible - 17.4960gmass of AB + crucible - 15.1314gCalculate the % water content of the hydrate3. From the above data, give the correct formula for the hydrate. (AB₂ Molar mass = 129.84 g/mol)A sample containing chlorophenol, C6H4ClOH, was analysed by gravimetric analysis. A 0.783-g of this sample goes through a chemical process allowing the chlorine in the chlorophenol to precipitate as silver chloride, weighing 0.271 g. Calculate the % (wt/wt) of the chlorophenol in the sample, assuming that chlorophenol is the only source of chlorine in the sample. Provide your answer to two decimal places and without units. Avoid using scientific notation.need all (1.8, 1.9, 1.10) 3 answers of this question.