Lab 9 .docx

Chlorine atoms in the atmosphere can react with ozone. Mathematically combine the following two reactions to create an overall balanced equation with the lowest whole-number coefficients. All chemical species in the reaction are gas-phase. Which of the following best represents the overall reaction? C1+03 → Clo+0₂ c10+ 0 → Cl + 0₂ To combine the reactions to create the overall balanced equation, you need to eliminate spectator species and only include the remaining species. O There are two lone chlorine atoms in the overall balanced reaction. O Two chlorine atoms can cause the production of two oxygen molecules. O CIO appears on the reactant and product side of the overall balanced reaction. Lone oxygen atoms are consumed by the overall reaction. O There is a net conversion of O2 to 03.

File Edit View History Bookmarks Window DOD SC ¡! Previous Page 1 of 4 C A T option Z 11 2 W Next → S CHAPTER 4-STOICHIOMETRY: QUANTITATIVE INFORMATION ABOUT CHEMICAL REACTIONS X 30 S command tv 3 S E Help D Calcium hydride reacts with water to produce calcium hydroxide and hydrogen gas. CaH₂ (s) + 2 H₂O(l) → → Ca(OH)₂ (s) + H₂(g) If 7.003 g CaH₂ is combined with 61.000 g H₂O, the reaction proceeds until all the CaH2 is consumed. The hydrogen gas escapes to the environment, and the final weight of the flask is 67.332 g. The remaining water is evaporated, leaving 12.327 g Ca(OH)2. What mass of water is consumed in the reaction? g H₂O C LE S R Document3.docx F @ FOCUPSIA ProPrienc 17.50 % V C T east.cengagenow.com G C BLOMNI Wenarchive 6 B C MacBook Pro & 7 H C₁3 N C Online t... Yesterday at 6:04 AM U O AUO 75 71177 21 101.544M *00 J O M K 10 KB G 741 KR 28 Micros...(.docx) Wen Annive L P WOO command Study I option Tue Oct 11 11:2 U Save and Exit Progress Submit Quiz G Save and Exit +…

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A flask is charged with 0.140 mol of A and allowed to react to form B according to the following hypothetical gas-phase reaction. A(g) → B(g) The following data are collected. Os 0 40 S 0.072 80 s 0.025 120 s 0.014 (a) Calculate the number of moles of B at each time in the table. 160 s 0.013 0 - 40 s 0.0018 40 - 80 s 0.000625 80 - 120 s 0.00035 120 - 160 mol/s 0.000325 times (s) mol mol x mol x mol moles of A X mol mol/s mol/s 0 (b) Calculate the average rate of disappearance of A for each 40 s interval, in units of mol/s. mol/s 40 mol/s 80 120 0.140 0.068 0.043 0.029 160 0.016

Hydrogen peroxide decomposes as shown below: 2 H2O2 → 2 H2O + O2 molar mass H2O2 = (34.0 g/mol)   A sample of hydrogen peroxide solution was analyzed using the procedure from the “Enzymatic Decomposition and Analysis of Hydrogen Peroxide” experiment. A 7.54 g sample of the solution generated 0.0277 mol of oxygen gas.   Calculate the mass percent of H2O2 in the solution.

Reaction 1 FeO(s) + CO(g) → Fe(1) + CO2(g) AG" > 0 Reaction 2: C(s) + CO2(g) → 2 CO(g) AGzn <0 Overall reaction: FeO(s) + C(s) → Fe(l) + CO(g) AG n < 0 Subm The chemical equations above represent the main reactions that occur during the production of Fe(l) under certain conditions. The overall reaction couples reactions 1 and 2, resulting in a < 0? thermodynamically favorable process. Which of the following best explains whether or not a particle diagram could represent how the coupling of reaction 1 and reaction 2 results in AG A particle diagram that represents the increase in the volume of gaseous product particles would be a good representation of how the coupling of reactions 1 and 2 results in a thermodynamically favorable process. A particle diagram that represents the decrease in the average kinetic energy of the particles would be a good representation of how the coupling of reactions 1 and 2 results in a thermodynamically favorable process. A particle diagram cannot represent…

In the laboratory, hydrogen gas of good purity can most easily be obtained by the reaction of a strong acid, like sulfuric acid, on a reactive metal, such as zinc: Zn(s)+H,SO,(aq) ZnSO, (aq)+H,(g) 4 4 2. Suppose an engineer decides to study the rate of this reaction. He prepares four reaction vessels by adding 171.5 g of solid zinc and 77. mL of 5.0 M sulfuric acid solution to each, and then filling the remainder of the vessel with distilled water. The volume and temperature of each vessel is shown in the table below. Arrange the reaction vessels in decreasing order of initial rate of reaction. In other words, select a "1" next to the vessel in which the engineer can reasonably expect the initial rate of reaction to be highest, a "2" next to the vessel in which the initial rate of reaction would be next highest, and so on. initial rate of vessel volume temperature reaction A 3.0 L - 5.0 °C ? В 3.0 L -4.0 °C ? C 2.0 L -4.0 °C D 5.0 L - 5.0 °C ? > > >

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Emergency oxygen masks contain potassium superoxide (KO₂). The chemical equation for the reaction of KO₂ with H₂O and CO₂ to produce O₂ is shown below. 4KHCO3 + 302 If a person wearing a mask exhales 0.74 g of CO2 every minute, then how many grams of O₂ will be produced in 25 minutes? Assume the reaction speed is essentially instant. 4KO + 2H₂O + 4CO. 2 2

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13. A mixture of Co(g) and Ozlg) is placed in a rigid, sealed container as shown in the particle diagram. The Co(g) reacts with the 02(g) according to the following reaction. 2c0(g) + O2(g) → 2CO2(g) Which of the following diagrams correctly illustrates the reaction mixture after the reaction goes to completion? 000 00 00 000 (A) (C) 00 000 000 000 000 000 000 00 00 000 000 000 000 (D) 000 000 (B) C2021 Illuminate Education TM Inc. DELL F1 F2 F3 F4 6x F5 F6 F9 F10 F11 Priscr %23 24 & 2 4 6 80 W T Y G K 2

In the following reaction represented by the net ionic equation, the rate of reaction of MnO4– is 0.644 mol/L·min. What is the rate of reaction of CN– (mol/L·min)? Report your answer to the thousandths place and do not include units. 2 MnO4– + 3 CN– + H2O → 2 MnO2 + 3 CNO– + 2 OH–

emaining Time: 1 hour, 05 minutes, 35 sečonds. Question Completion Status: A Moving to the next question prevents changes to this answer. Question 2 How many moles of Fe203 will be produced from the complete reaction of 1.57 moles of O2 as described in the following equation: 4Fe + 30, → 2Fe203 A Moving to the next question prevents changes to this answer. a arch 米 10 1+ prt sc 144 II delete ho 2$ 4 & 7 * 6. 8. backspace R Y P. [ D enter V || B N pause M ↑ shift L. 立