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02 HW - Rate Laws

# 02 HW - Rate Laws - Name Date WKST#12 Rate Laws(50 points...

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Name: __________________________________________ Date: ___________ WKST #12: Rate Laws (50 points) Period: __________ Write the rate laws for the following reactions: 1. 2NO + O 2 → 2NO 2 [NO] o [O 2 ] o  NO 2 ] o / t 0.015 0.015 0.048 0.030 0.015 0.192 0.015 0.030 0.096 0.030 0.030 0.384 2. NH 4 + + NO 2 - → NH 4 NO 2 [NH 4 + ] o [NO 2 - ] o - [NH 4 + ] o / t 0.24 0.10 7.2 x 10 -6 0.12 0.10 3.6 x 10 -6 0.12 0.15 5.4 x 10 -6 3. 2NO + Cl 2 → 2NOCl [NO] o [Cl 2 ] o - [Cl 2 ] o / t 0.13 0.20 0.010 0.26 0.20 0.040 0.13 0.10 0.005 4. A + B → C Exp [A] o [B] o  C] o / t (M/s) 1 0.20 0.10 0.0018 2 0.40 0.10 0.0036 3 0.10 0.20 0.0072 5. C 2 H 4 Br 2 + 3I - → I 3 - + C 2 H 4 + 2Br - Exp [C 2 H 4 Br 2 ] o [I - ] o [I 3 - ] o / t (M/s) 1 0.127 0.102 6.45 x 10 -5 2 0.343 0.102 1.74 x 10 -4 3 0.203 0.125 1.26 x 10 -4 6. For: A + B → C a. What is the rate law? b. What is the value of the rate constant? Exp [A] o [B] o [C] o / t (M/s) 1 0.210 0.115 0.00063 2 0.210 0.230 0.00125 3 0.420 0.115 0.00251 4 0.420 0.230 0.00513 7. For: A + 2B +C → 2D + E a. What is the rate law? b. What is the value of the rate constant? c. What is the value of R 5 ? Exp [A] o [B] o [C] o Initial rate (M/sec) 1 1.40 1.40 1.00 R 1 = 1.000 2 0.70 1.40 1.00 R 2 = 0.500 3 0.70 0.70 1.00 R 3 = 0.125 4 1.40

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