Consider the reaction CS2 (9) + 4H2 (g) = CH, (g) + 2H2S(g) a. Calculate AH°, AS°, and AG° at 25°C for this reaction. AH; (kJ/mol) S° (J/mol·K) CS2 (9) H2 (g) CH4 (g) H2 S(g) 116.9 237.9 130.6 -74.87 186.1 -20.50 205.6 ΔΗ' 232.77 kJ AS = -0.163 J/K AG" = -184.190 kJ b. Assume AH and AS" are constant with respect to a change of temperature. Now calculate 350°C. AG7 = -334.34 kJ

8:21 The conjugate base of HSO3 is A) HSO3²- B) SO3²- C) HSO4 Question 9 of 20 D) H₂SO3 Tap here or pull up for additional resources Submit

Answer questions a-c about the Bronsted acid-base reaction below using the identifying letters A-D below each structure. A table of pK₂ values for various organic and inorganic acids can be found in the references section. A phenol OH Submit Answer HO B bicarbonate C phenoxide HO a) The weaker base is b) Its conjugate acid is c) The species that predominate at equilibrium are (two letters, e.g. AC) D carbonic acid 'OH Retry Entire Group 5 more group attempts remaining Previous Next Save and Exit

Which is more acidic? Select one: a. Ob.

Which compound Answer will have the LOWEST pI value and which compound Answer will have the HIGHEST pI value?

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Select the MOST BASIC, HN. H OR C O C O D

a If an acid, HA, dissolves in water such that the Ka is 70000, what is the pK, of that acid? a pK. : a

Rank the acids in the table below from strongest (1) to weakest (4). The most acidic H atom in each acd has been highlighted. H. H. H (Choose one) (Choose one) (Choose one) (Choose one)

Practre go I Compare the two hydrogens shown in this compound and circle the one that is more acidic. а. Draw the two possible conjugate bases b. For your answer above, circle which of the conjugate bases is more stable c. Briefly justify your answer in part b. Structures may be helpful in your explanation. (in red)