5 pts Question 4 A mixture of 0.75 moles of H2S. 0.40 moles of H2, and...
QUESTION 1 CH4(g) + 2 H2S(g) = CS2(g) + 4 H2(g) A reaction mixture initially contains 0.55 M CH4 and 0.53 M H2S. If the equilibrium concentration of H2 is 0.48 M, find the equilibrium constant (Kc) for the reaction. *Please report 3 significant figures. Numbers only, No unit. No scientific notation.
D Question 4 5 pts 2b) There are 0.10 moles of N2O4 and 0.20 moles of NO 2 present in a 2.0 L container which may react according to: N2O4(g) = 2N028) Kp = 11 What is the value of Qp for the initial gas mixture? a. 4.0 b. 0.20 c. 0.40 d.5.0 . a. b. Consider the following equilibrium systems. Which direction will the reactions shift (reactants or products) when cooled? 200g + O2(g) = 2CO2(g) H2e+12(e)=2HI® H2(g) +126)...
QUESTION 2 CH4(8) + 2 H2S(g) = CS2(8) + 4H2(8) A reaction mixture initially contains 0.84 M CH4 and 0.45 M H2S. If the equilibrium concentration of H2 is 0.64 M, find the equilibrium constant (Ke) for the reaction *Please report 3 significant figures. Numbers only. No unit. No scientific notation
if someone can help answer these questions tion 18 O out of 4 points At the start of a reaction, there are 1.05 moles of NO, 0.955 moles of Bry, and 1.15 moles of NOBr in a 5.5 L reaction vessel at 727 "C. From these initial molar concentrations, decide whether the system is at equilibrium. If not, predict which direction the net reaction will proceed. (Hint: Reaction Quotient) 2NO(g) + Br2(g) + 2NOBr() Ke 0.013 Question 19 O out...
please show full work for understanding purposes:) 5. (4 pts) Calculate the pH of a 0.0025 M aqueous solution of strontium hydroxide, Sr(OH). Sr(OH)2 = Srz + 20H .0025 - x + x + 2x o rood .0025 - Kb = (2x² 4 = 6.5*103 0.0025 ) pH = 6. (6 pts) Calculate the pH of a 0.175 M NH; aqueous solution. K. for NH, is 1.8 x 10. pH = 180 7. (10 pts) Determine the pH of a...
Question 5 1 pts For the reaction 2 A = B, the equilibrium concentrations are as follows: [A] -0.056 M and [B] = 0.12 M. Calculate the equilibrium constant (Keg) for the reaction. O 2.6 x 10-2 38 2.1 O 0.26
Question two A buffer solution is able to maintain a constant pH when small amounts of acid or base are added to the buffer. Consider what happens when 1 mL of a 5 M solution is added or 0.005 mol of HCl are added to a 100.0 ml solution acetic acid buffer that contains 0.0100 mol of Acetic acid, HC,H,O,, and 0.0100 mol of sodium acetate, NaC,H,O2. The initial concentration of both the acid and the base are 0.0100 mol/0.1000...
Question 12 5 pts In the reaction of nitrogen gas, N2, with hydrogen gas, H2, to form ammonia gas, NH3, how many moles of hydrogen are needed to react with 2 moles of nitrogen? N2 + 3H2 - 2 NH3
can you solve and show work if possible Qui Question 9 16 pts The reaction H2 (8) + 12 (8) <---> 2H1 (g) has a K = 16.60 at 300 K. If 0.425 MH, is mixed with 0.425 M 12 in an evacuated flask, what will be the equilibrium concentration of HI?!
Question 39 2 pts Which of the following changes is most likely to decrease the reaction rate for the chemical reaction? 2CO(g) + O2(g) → 2CO2(g) O adding a catalyst to the reaction mixture adding twice as much O2 to the reaction mixture O removing some CO from the reaction mixture tripling the temperature of the reaction mixture Question 40 2 pts If two aqueous solutions with concentrations of 0.3 M sugar and 0.5 M sugar respectively are separated by...