A standard solution is a solution of accurately known concentration. What is a standard solution for titrating sulfuric acid in acid-alkali titration?

The student plotted the experimental kinetics data  as 1/ versus time and obtained a straight line graph for the hypothetical reaction aA =>bB.  The y-intercept of the line  of the line must equal to:

Which statements are true?  a) A voltaic cell generates electrical energy from a spontaneous oxidation-reduction reaction.b) The anode is the electrode at which reduction occurs.c) The electrons move from the cathode to the anode.d) Cations are always positively charged and move toward the cathode.  

A 20.00 mL sample of 0.106 M HCl is titrated with 0.0989 M NaOH. Determine the pH of the solution after addition of 20.00 mL of NaOH To receive full credit (2 pts for answer and 2 pts for showing work), submit a picture of your work to the Final Exam Required Work & Partial Credit  assignment AFTER SUBMITTING COMPLETED FINAL

Use the Nernst equation to calculate the cell potential for the following cell in Volts: Cr|Cr3+, 0.0010M||Cu2+, 1.0M|Cu To receive full credit (2 pts for answer and 2 pts for showing work), submit a picture of your work to the Final Exam Required Work & Partial Credit  assignment AFTER SUBMITTING COMPLETED FINAL

Titration of 25.0 mL of an unknown concentration H2SO4 solution requires 43.6 mL of 0.0985 M NaOH solution.  What is the concentration of the H2SO4 solution (in M)?  To receive full credit (2 pts for answer and 2 pts for showing work), submit a picture of your work to the Final Exam Required Work & Partial Credit  assignment AFTER SUBMITTING COMPLETED FINAL

The student plotted the experimental kinetics data  as ln versus time and obtained a straight line graph for the hypothetical reaction aA =>bB.  If k is a rate constant, then the slope of the line must equal to:

A student collected the following data in the kinetics of the formation of carbon monoxide at 3000K:  Reaction: C(graphite) + O2(g) => 2CO(g) Data Table Time, s PO2, bar 0 1.00E+00 2.907 6.03E-02 5.514 3.64E-03 8.621 2.19E-04 11.028 1.32E-05 14.035 7.97E-07 16.541 4.81E-08 19.648 2.90E-09 22.755 1.75E-10 25.562 1.06E-11 28.268 6.37E-13 Build three appropriate Excel graphs and list the trendline equation and R2 for each including coordinates. (You do not need to show graphs, 6pts). Report the order of the reaction is (3pts) and justify your answer (3pts) Report the reaction constant value and units (4pts) To receive credit, report your answers below and submit a picture of your work (if needed) to the Final Exam Required Work & Partial Credit  assignment AFTER SUBMITTING COMPLETED FINAL ANSWERS:          

If equal volumes of a strong base and a weaker acid are mixed together, what would you expect the pH of the resulting salt to be?

On the illustration of a generic cell for In/Zn electrodes immersed in their salt solutions 1. Use numbers from the picture to identify (5 pts) :  the anode:  the cathode: the direction of cations  the direction of anions the direction of the electrons flow 2.   In3++3e−⟶In     Eo= −0.3382V Zn2++2e−⟶Zn    Eo= −0.7618V Use the given electrode potentials above to write the following (10 pts): the anode half-reaction (2 pts) the cathode half-reaction (2 pts) the balanced overall net equation the cell voltage produced (4 pts) the standard cell notation (2 pts) Calculate Eocell(5 pts) To receive credit, report your answers below and submit a picture of your work to the Final Exam Required Work & Partial Credit  assignment AFTER SUBMITTING COMPLETED FINAL ANSWERS: