In the hydrolysis (saponification) of ethyl acetate, a plot of In(k,-k) against time is a straight line. The conductivity of the reaction mixture was 1438 μS cm after 10 min and 1030 μS cm after 40 min of mixing reaction components. If K∞ = 653 US cm, calculate the reaction rate constant in s. Select one: 1.1 × 10251 x 4.1 × 10-4 s1 8.1 x 10-5 51 2.5 × 10-3 s-1

Consider the following reaction: Glucose 6-phosphate + Glucose 1-phosphate After reactant and product were mixed and allowed to reach equilibrium at 25C, the concentration of each compound was measured: (Glucose 1-phosphate] - 0.002 M [Glucose 6-phosphate 0.05 mM Calculate the Keg and the AG knot prime (e.g. standard free energy change). O Keg- 40: AG knot prime 9.14 kJ/mol O Ken- 19: AG knot prime -7.3 kJ/mol O Keg" 0.04: AG knot prime-7.98 kJ/mol Kea 4: AG knot prime -914 kJ/mol O Keg 40: AG knot prime - 9.14 k/mol

If glucose, phosphate, and glucose-6-phosphate arecombined in concentrations of 4.8, 4.8, and 0.25 mM,respectively, what is the equilibrium constant for thehydrolysis of glucose-6-phosphate at a temprature of258C?

From a kinetics experiment, Kcat was determined to be 55sec^-1. For the kinetic assay, 0.05mL of a 0.05mg/mL solution of enzyme was used, and the enzyme has a molecular weight of 30,000g/mole. Assume a reaction volume of 3mL. Calculate Vmax (um*min^-1) for the enzyme and catalytic efficiency (in  M^-1sec^-1) for the enzyme. The Km for the enzyme was determined to be 8.3*10^-2M.

A particular reaction has ΔH°' = 1 kJ mol-1 and ΔS°' = -104 J mol-1 K-1. Calculate the value of ΔG°' in kJ mol-1 at 25.0 °C.

A biochemist is trying to determine the type of proteases they have isolated from walrus blubber. The three proteases and their relative activities in the presence of the indicated non-specific irreversible inhibitors are shown in the table below: Protease a Protease B Protease y Given this data, please answer the following question: The catalytic site of Protease ß contains an important: C R H + lodoacetate Normal Activity Normal Activity No Activity U + Tetranitromethane Normal Activity No Activity Normal Activity

The Ksp values of silver chromate Ag2CrO4 and silver iodate Ag(IO3) are given below.                             Ag2CrO4                            Ag(IO3) Ksp                      1.12 x 10-12                     3.17 x 10-8 Based on these Ksp values, which of the following is true?  Choose one option only. Options: a. In the solution consisting of 1.00 x10-4 M Ag+ and 5.00 x10-5 M CrO42-, Ag2CrO4 precipitate will form.   b.  In the solution consisting of 1.0 x10-4 M Ag+ and 1.0 x10-4 M IO3-, Ag(IO3) precipitate will form.   c. In pure water, the solubility of Ag2CrO4 is lower than the solubility of Ag(IO3).   d. In the solution consisting of 0.200 M CrO42- and 0.200 M   IO3-,  Ag2(CrO4) will precipitate first if we add Ag+ ions gradually into the above mixture.

Sodium carbonate is a reagent that may be used to standardize acids in the same way that you have used KHP in this experiment. In such a standardization it was found that a 0.498 -g sample of sodium carbonate required 21.7mLmL of a sulfuric acid solution to reach the end point for the reaction. Na, CO, (aq) + H₂SO (aq) - H₂O(l) + CO₂ (g) + Na SO (ag) What is the molarity of the H, SO? 2 3 2 4 2 2 2 2 4 Sodium carbonate is a reagent that may be used to standardize acids in the same way that you have used KHP in this experiment. In such a standardization it was found that a 0.498-g sample of sodium carbonate required 21.7 mL mL of a sulfuric acid solution to reach the end point for the reaction. Na2CO3(aq) + H2SO4(aq) + H2O(l) + CO2 (g) + Na2SO4(aq) What is the molarity of the H2SO4? ΜΕ ΑΣΦ Submit Request Answer ? M

A galvanic cell at a temperature of 25.0 °C is powered by the following redox reaction: 2+ 2+ Sn(aq) +Ba(s) → Sn (s) + Ba** (aq) 2+ 2+ Suppose the cell is prepared with 7.71 M Sn in one half-cell and 5.89 MBa in the other. Calculate the cell voltage under these conditions. Round your answer to 3 significant digits.

The temperature dependence of the vapor pressure is given by the equation: ΔΗ RT Inp = In A – Where: p= vapor pressure T = temperature A = pre-exponential constant AHvap = enthalpy of vaporization In order to solve for the enthalpy of vaporization, AHvap, you must: Step One Add the same expression to each side of the equation to leave the term that includes the variable by itself on the right-hand side of the expression: (Be sure that the answer field changes from light yellow to dark yellow before releasing your answer) ΔΗ RT + Inp = + In A Drag and drop your selection from the following list to complete the answer: 1 1 In In A - In A K