Time [Z] (hours) (mg/L) 160 2 140 3 130 6 100 80 10 60 12 40 Calculate k, the elimination rate constant, responsible for drug degradation (in mg/L*hr).

A group of students compiled the data shown in data table 1 below.  What is the units for the average rate constant value (k)?   Exp. # [IO3-]0 (M)   [I-]0 (M)    [H+]0 (M) Time (s) 1 0.005 0.05 2 x 10-5 22.12 2 0.010 0.05 2 x 10-5 86.84 3 0.005 0.10 2 x 10-5 5.35 4 0.005 0.05 4 x 10-5 2.65     Question 8 options:   M-2 s-1   M-3 s-2   M2 s-2   M-4 s-2   M3 s3   M-4 s-3   M-2 s-2   M2 s2   M s   M s-1   M-3 s-1   M-1 s-1   M-3 s-3

The chemical equation corresponding to the hydrolysis reaction can be written: R-CI + H,O →R-OH+ CI+H* Let's call a the initial concentration in 2-chloro-2-methyl-butane and x the concentration of hydrochloric acid that is formed at time t. Water remains in large excess all over the course of the reaction. Then one can write: R-CI+ H,0 –R-OH + CI +H* t = 0 a 0 0 0 t>0 t = 0 Q1: Complete the table above with the molar quantities of each compound at times t> 0 and t = 0 with the data of the text.

In a study of the rearrangement of ammonium cyanate to urea in aqueous solution at 50 °C NHẠNCO(aq)→(NH2)½CO(aq) the concentration of NH,NCO was followed as a function of time. It was found that a graph of 1/[NH4NCO] versus time in minutes gave a straight line with a slope of 1.44×102 Ml min-1 and a y-intercept of 0.980 M-!. Based on this plot, the reaction is order in NH4NCO and the rate constant for the reaction is M1 min-1.

At pH = 7, the measured Michaelis constant and maximum velocity for the enzymatic conversion of fumarate to L-malate,   Fumarate + H2O → L-Malate   are 4.0 x 10-6 M and 1.3 x 10 3 [E]0 s-1 , respectively, where [E]0 is the total molar concentration of the enzyme.   The Michaelis constant and maximum velocity for the reverse reaction are 1.0 x 10-5 M and 800 [E]0 s-1 , respectively.   8A)WHAT is the equilibrium constant (a value) for the hydration reaction? [Notes: the arrow above is an equilibrium arrow. The activity of water is set equal to unity]   8B.) DRAW all chemical entities in the forward, balanced chemical reaction, above.

In a study of the gas phase decomposition of sulfuryl chloride at 600 KSO2Cl2(g)SO2(g) + Cl2(g)the concentration of SO2Cl2 was followed as a function of time.It was found that a graph of ln[SO2Cl2] versus time in minutes gave a straight line with a slope of -4.28×10-3 min-1 and a y-intercept of -6.95 . Based on this plot, the reaction is________. (firest, zero, or second) order in SO2Cl2 and the rate constant for the reaction is min-1.

The protein catalase catalyzes the reaction 2H,0,(aq) – 2 H,0O(0) + 0,(g) and has a Michaelis–Menten constant of KM = 25 mM and a turnover number of 4.0 × 107 s-1. The total enzyme concentration is 0.016 µM and the initial substrate concentration is 6.58 µM. Catalase has a single active site. Calculate the value of Rmax (often written as Vmax ) for this enzyme. Rmax mM-s- Calculate the initial rate, R (often written as Vo), of this reaction. R = mM-s-

Suppose that a certain biologically important reaction is quite slow at physiological temperature (37 °C) in the absence of a catalyst Part A Assuming that the collision factor remains the same, by how much must an enzyme lower the activation energy of the reaction in order to achieve a 5x105-fold increase in the reaction rate? Express your answer in kilojoules per mole to one significant figure. ΠΕΙ ΑΣΦ Ea,uncatalyzed - Ea,catalyzed 148 Sulmit Previous Answers Request Answer M Incorrect: Try Again: One attempt remaining Review Constants | Periodic Table ? kJ/mol

Explain enzyme kinetics including zero-order and first-order kinetics.

1-arr In a study of the decomposition of dinitrogen pentoxide in carbon tetrachloride solution at 30 °C N2O5- →2 NO2 + ½ O2 the concentration of N,O5 was followed as a function of time. It was found that a graph of In[N2O5] versus time in minutes gave a straight line with a slope of -6.31×10* min and a y- intercept of -1.34 . Based on this plot, the reaction O order in N,0g and the rate constant for the reaction is min-1. zero first second