12.0 10.0 8.0 B pH 6.0 J с 4.0 2.0 D 0.0 0 5 10 15 20 25 30 mL of 0.1 M NaOH The graph above shows the titration curves of four monoprotic acids of varying strengths. All of the acids start out at 0.1 M concentration and 25.0 mL volume. Choose all of the correct statements about these titration curves from the choices below. The titration curve labelled "D" is generated by the strongest acid in the series. The pk₂ of the acid which generates curve "B" is about 8. The pka of a titration indicator should match the pH of the neutralization point. The pk of the conjugate base of the acid which generates curve "A" is about 6. The titration curve labelled "D" is generated by the weakest acid in the series. The stronger the acid the lower the pH of the neutralization point.

Consider the balanced chemical equation. Submit Request Answer H2O2 (aq) + 31 (aq) + 2H+(aq) → I3 (aq) + 2H2O(1) In the first 12.0 s of the reaction, the concentration of I drops from 1.000 M to 0.773 M . Part B You may want to reference (Pages 587 - 592) Section 14.3 while completing this problem. Predict the rate of change in the concentration of I3 (AI3]/At). Express the rate to three significant figures and include the appropriate units. A[l; ]/At = Value Units

According to the kinetic molecular theory for a reaction to take place the reactants must collide.  However, not all collisions will result in a reaction.  What two criteria must be met for a collision to be effective (result in a reaction)?

но HO HO HO 0 + ½ O, → + H,0 H H но OH ascorbic acid dehydroascorbic acid Vitamin C is oxidized slowly to dehydroascorbic acid by the oxygen in air. It is catalyzed by ions such as Cu*2 and Fe*3. The reaction can be followed by measuring the ultraviolet absorbance at 243 nm. Time (hours) Absorbance (A) 1/A In A - In A 0.75 1.3 -0.29 0.29 1 0.38 2.6 -0.97 0.97 2 0.19 5.3 - 1.7 1.7 3 0.095 11 - 2.4 2.4 29. What is the hybridization of carbon 1 (far left) and carbon 2 (middle) in this hydrocarbon: CH3CH=CH2? (A) sp³, sp (B) sp?, sp? (C) sp³, sp? (D) sp, sp?

A 10-mm cube of copper metal is placed in 250 mL of 12 M nitric acid at 25°C and the reaction below occurs: Cu(s) + 4H+(aq) + 2NO3(aq) → Cu2+(aq) +2NO2(g) + 2H20(I) At a particular instant in time, nitrogen dioxide is being produced at the rate of 2.3 × 10^-4 M/min. AT this same instant, what is the rate at which hydrogen ions are being consumed in M/min? Report you answer with 5 places past the decimal

A plot of concentration/time data for the decomposition reaction below is shown below. The line has a slope of -1.26 x 10-2min ¹. What is the concentration of N₂O after 25 min if the initial concentration of N₂O was 0.15 M? 2N₂O(g) → → 2N2(9) + O2(9) In [N₂O] time (min) 4

Here is a graph of the pressure of ethylene (C₂H₂) in a reaction vessel during a certain chemical reaction. Use this graph to answer the questions in the table below. atm 30- 25- 20.870 15- 10+ 5+ 50 100 150 seconds Is C₂H4 being created or destroyed by the chemical reaction? If C₂H4 is being created or destroyed, what is the rate at which it is being created or destroyed 100 seconds after the reaction starts? Round your answer to 2 significant digits. Also be sure your answer has the correct unit symbol. If C₂H4 is being created or destroyed, what is the average rate at which it is being created or destroyed during the first 100 seconds of the reaction? 200 Round your answer to 2 significant digits. Also be sure your answer has the correct unit symbol. 250 created destroyed 300 neither created nor destroyed 0 X 00 0.0 Ś

Particles can collide in any formation and a bond will be formed if the particles speed is high True O False

( the reaction 2 HgO(s)--> 2 Hg(1) + O2(g) we measure the evolution of gas to determine the rate of reaction. At the beginning of the reaction (at 0 minutes), 0.020 L of O2 is present. After 15 minutes the volume of O2 is 0.35 L. What is the rate of reaction in L/min? For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph Arial E X² X₂ ¶ ¶< - + ABC V 10pt V √ TT V " Ω E E 88 AV AV Ix I B F % 0 医用图图 Ť0) Ⓒ Q Save Answer ... Ky

A substance containing dye decomposes very quickly. The graphs below were constructed with data pertaining to changes in [dye] over time. The initial concentration of dye was 1.0 M. After 20 seconds passed the concentration of dye was measured to be 0.13 M. [Dye] (mM) 10 00 0.9 -0.5 0.8 0.7 0.6 0.5 0.4 In([Dye]) In(mM) 6 -1 -1.5 1/[Dye] (1/mM) m 0.3 -2 2 0.2 0.1 -2.5 0 10 20 0 10 20 10 20 time (sec) time (sec) time (sec) 1. What is the order for the overall reaction? Justify your answer. Your answer *