30) Determine the rate law for the following reaction using the data provided 0.

Question

30) Determine the rate law for the following reaction using the data provided 0.030 0.0055 855 x 10-3 00110 3.42 10-2 1.71 x 10-2 A) Rate AAIB] B) Rate A(R] D) Rate AB] Rate-A(A)(B)2 31) Caleulate the plH of a solution that contains 7 80 1Ma(OH)y at 25 *C. A) 2.81 B) 3.11 C) 11.2 31)- 32) Determine the pOH of a 0.188 M NH, solution at 25°C. D) 16.8 E) 10.9 The Ks ofNH is 1.76 10 A) 5.480 B) 11.260 C) 8.520 D) 2.740 33) Calculate the pH of a buffer that is 0.255 M HCHO and 0.162 M KCHO E) 12.656 The Ka for HCHO3 is 1.8 A) 3.94 10 B) 10.5 C) 10.1 D) 3.55 E) 3.74 the following example, identify the following. CO (g) CO2(s) 34) A) a negative H and a negative S B) a positive and a negative S C) a negative and a positive as a positive H and a positive S ) It is not possible to determine without more information. 35) Which of the following is an expression for a type of equilibrium constant? A) Ksp and Kr B) K, and K C) pK, and pk D)KH all of the above 36) Consider a reaction that has a negative and a negative 36) Which of the following statements is true? A) This reaction will be spontaneous at all temperatures. 3 This reaction will be nonspontaneous at all temperatures. C) This reaction will be spontaneous only at high temperatures. D) This reaction will be spontaneous only at low temperatures. E) It is not possible to determine without more information. 37) 37) What element is being reduced in the following unbalanced redox reaction? Mno,-(aq) + H2C04(aq) Mn2+(aq) + CO2(g) A) Mn E) none of them B) O

Explanation / Answer

30)

see experiment 1 and 3:

[A] doubles

[B] is constant

rate is constant

so, order of A is 0

see experiment 1 and 2:

[A] is constant

[B] doubles

rate becomes 4 times

so, order of B is 2

overall order = 0 + 2 = 2

Rate law is:

rate = k*[B]^2

Answer: B

Only 1 question at a time please

Related Questions

Navigate

• Browse (All)
• Browse 3
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.