+ > C a apclassroom.collegeboard.org/113/assessments/assignments/44514144 Login 6 My AP Login - Coll. I LanguageTool - Onl. Co. Biography of Albert. Pre-AP Unit 3 Learning Checkpoint 2 CollegeBoard 1-0-0-0-0-00-0 10-11 4 9. Question 9 A CH4 (g) + 2 O2 (g) CO2 (g) + 2 H2O (g) When CH,(g) is burned in 02(g), the reaction represented by the equation occurs. If 32 g of CH, is burned completely, how many moles of CO, are produced? Enter the number of moles to the nearest whole number. mol TL 11 46

* Chrome File Edit View History Bookmarks People Tab Window Help A1 07 99% 1 Fri 2:44 PM a Chemistry - S2 - MI, T2 - Activ x lincolnlearningsolutions.Ims.lincolnlearningsolutions.org/student/158064923/activity/71945701_FF14945E-E5A8-AA5C-E4B3-DE63-DA2... ☆O Updat ABP C5F Paused E Apps O YouTube G Google @ school wR Word Reference 6 X school myflixer EReadin Ideal Gas Law-Assess It Chemistry-S2-MI, T2/Gases//Lesson 146-147 Tina Etemi 回 O 4 All changes sava 5. A balloon can hold 10 liters of a gas. If you blow up this balloon with 2 moles of oxygen gas at a pressure of 0.76 atmospheres, what is the temperature of the balloon? Pay attention t the unit of pressure used. O 45.7 K O 0.457 K O 4.63 K O 46.3 K PREVIOUS 5 of 5 SAVE & EXIT SUBMIT ALL ANSWERS

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How to prepare the solutions listed below Solution 1) 25 mL 7 M sulfuric acid and the respective dilution of this solution to prepare 50 mL 2 M sulfuric acid in deionised water. Sulfuric acid Mw = 98.079 g mol-1 Sulfuric acid density = 1.84 g mL-1 Sulfuric acid purity = 98% Solution 2) 100 mL 0.02M potassium permanganate potassium permanganate Mw = 158.03 g mol-1 potassium permanganate purity = 99%

Co 5 .. Aktiv Chemistry Welcome to MyTCC X b Home | bartleby 403 Forbidden: Ac... 1 + Complete the balanced molecular chemical equation for the reaction below. If no reaction occurs, write NR after the reaction arrow. Be sure to include the proper phases for all species within the reaction. CoCl₂(aq) + K₂S(aq) ( 2 □ CI Reset Cu F5 000 3- T 3 F6 4 0²-0 X QYour Sets | Quizlet P Question 46 of 50 03 04 05 06 07 08 C F7 5 6 7 8 9 Co - 2+ 3+ 4 4+ ASUS FB K NR 8 X ** H₂O F9 9 F10 Ac (1) (g) (aq) S 0 Sign In or Sign Up | Chegg.cc X Do Delete 8 O Prt. Sc + W 4

Extensions Help kt 10 Calibri 6 1 4 1.3 Y 2 f7 12 + BIUA 7. Scrubbers are a type of pollution control technology installed on industry smokestacks to capture sulfur dioxide before it is emitted to the atmosphere. Once collected, the sulfur dioxide can be used to manufacture sulfuric acid, which can be sold to other companies that make &7 U 3 1 10. Why is it essential to continually monitor air and water quality? detergents. Explain how the use of scrubber technology benefits both industry and the environment. 8 8. Most North American automobile manufacturers are shifting their production from gasoline powered vehicles to electric vehicles. What effect should this trend have on acid rain? 4 fg Explain how the concentration of a pollutant is related to the severity of its impact on the environment. Lesson 7: Remediate Chemical Pollution f10 5 hp insert 9 E ▼ EYE- f11 6 O f12 mismatisla THEOLOG prt scr 7 G BRUCK 63°F Cloudy delete backspace E

2HF (g) = H₂(g) + F2 (g), Ke=1.0 x 10 -95 ibrium mixture contains mostly reactants. Desktop 100 2NO(g) + O₂(g) = 2NO₂(g), Kc = 6.0 × 10¹3 Address CO(g) + Cl₂ (g) = COC12 (g), Kc = 5.0 × 10-⁹ Equilibrium mixture contains mostly products. 8:18 PM ^ Tuesday 6/21/2022 ENG IN

) - O + 88 www-awu.aleks.com Dashboard Rhetorical Analysis Essay Assignment WPAL 101_ 229 _Spring 2022 _ Smith -... ALEKS - Anniston Stovall - Learn Answered: Sodium hydrogen carbonate (.. O CHEMICAL REACTIONS Anniston V Solving for a reactant in solution 1/5 One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaminants in water is by titrating a sample of silver nitrate solution. Any chloride anions in solution will combine with the silver cations to produce bright white silver chloride precipitate. Suppose an EPA chemist tests a 200. mL sample of groundwater known to be contaminated with iron(II) chloride, which would react with silver nitrate solution like this: FeCl,(aq) + 2 AgNO3(aq) → 2 AgCl(5) + Fe(NO3),(aq) 2 The chemist adds 11.0 mM silver nitrate solution to the sample until silver chloride stops forming. She then washes, dries, and weighs the precipitate. She finds she has collected 8.9 mg of silver chloride. ol. Calculate the concentration of…

Chrome File Edit View History Bookmarks People Tab Window Help 99% 1 Fri 2:43 PM 1 Q OChemistry-S2- MI, T2- Activ x A lincolnlearningsolutions.Ims.lincolnlearningsolutions.org/student/158064923/activity/71945701 FF14945E-E5A8-AA5C-E4B3-DE63-DA2. Paused Update ABP CSF # Apps YouTube G Google @ school wR Word Reference 6 3 X school myflixer 国Reading Ideal Gas Law - Assess It Chemistry-S2-MI, T2/Gases/Lesson 146 -147 Tina Etemi 回 04 @ All changes sav 3. If you have 3 moles of a gas at a pressure of 2.5 atmospheres and a volume of 8 liters, what is the temperature? Pay attention to the unit of pressure used. O 0.81 K O 25 K O 81.27 K O 57.86 K

In any manufacturing process, reaction monitoring ensures that a chemical reaction proceeds as expected. Table 1 shows the monitoring data for the formation of chlorohexane, collected using a technique called gas chromatography. Note that the concentrations of the chlorohexane solutions are given in millimoles per litre (mmol l–1). The abbreviation mM (millimolar) is frequently used. Plot a graph of the data in Table 1. The graph should be drawn on graph paper or use fine grid if it’s drawn on Excel. Elapsed Time/Hours  Concentration of Chlorohexane/mM 0 0 2 40 4 65 6 80 8 90 10 95 12 99

I need help with quesion 8. Thanks.

Consider the calcination of CaCO3: CaCO3 -> CaQ + CO, Before calcination, the initial weight of CaCO3 is 2.5g. After calcination, the final weight of CaCO3 was measured at 2.0 g. Calculate the conversion of CaCO; particles (x) using the following equation: m CaCO, -m CaCo, ) x = m Caco, -MCao |

Lecture X zm CHM12 x Assign X ChatGP X Cedxb Home xb Answer X M Inbox ( X M Inbox ( X Google x | ← → Cmoodle.uog.edu.gy/mod/quiz/attempt.php?attempt=143670&cmid=59476 M Gmail YouTube My courses 15 Google Calendar Periodic table - Cre... AccessPharmacy -... Cart Maison Fran... Exploring the Impa... 25:00 - Time to foc... UG_MOODLE 2023 2024 Home Dashboard My courses Search Question 11 Not yet answered Marked out of 1.00 Flag question OH HO CH₂ Phenylephrine (PE, see the structure below) is a nasal decongestant and is the active ingredient in Sudafed, which contains phenylephrine hydrochloride (PEHCI). This conjugate acid of phenylephrine (PEH+) has a pKa = 5.5. At a physiological pH of 7.4. What is the ratio of concentrations, [PE]/[PEH+]? O a. 79 O b. 0.14 ○ c. 21 O d. 6.7 ○ ○ e. 0.01 Clear my choice ZM ? = ☑ - 0 В >> All Bookmarks Quiz navigation 2 3 5 6 15 BC 10 12 13 14 Finish attempt... 10:49 AM 4/26/2024

Sci-Hub | Artificial Intelliger X n Dashboard n Course: Basic Chemistry for x BCBS_Supplementary Exerci X BCBS_Chapter 7_Chemical https://soul2.hkuspace.hku.hk/pluginfile.php/3164727/mod_resource/content/1/BCBS_Supplementary%20... Q * rw 之4 マ縮園 Q清除 | 6. Consider the following reaction: 2SO2(g) + O2(g) Time 2SO3(g) 1.00 mole of SO2(g) and 0.500 mole of O2(g) are mixed in a 1.00 dm³ container at constant librium constant, Ke, for the temperature. When equilibrium is attained, 98.0% of the SO2(g) is converted to SO3(g). What is the equilibrium constant, Ke, for the reaction at the temperature of the experiment? A. 4.80 × 10² dm’ mol B. 4.09 × 10' dm³ mol C. 5.55 × 10³ dm³ D. 2.40 x 10° dm° mol wing equilibrium system: 2HI(g) (Kc = 50.0) mol¯1 ue of Ke for the following H2(g) + I½(g) д

eleganceextreme1 X (208) + X 7571&snapshotld=1324548&id =563649000&takeld=4bfba59b09f0e5b& aSearch this course References Use the References to access important values if needed for this question. A student ran the following reaction in the laboratory at 639 K: H2(g) + I>(g 2HI(g) A-Z When she introduced 0.311 moles of HI(g) into a 1.00 liter container, she found the equilibrium concentration of HI(g) to be 0.249 M. Calculate the equilibrium constant, K, she obtained for this reaction. Kc Submit Answer K from [Initial] and One [Equilibrium]: This is group attempt 1 of 5 Next Autosaved at 12:59 PM Back 1:05 PM 4x 11 9/24/2019 hp delete prt sc insert 12 f11 10 144

The data below was collected using the procedure described in your lab notebook: Mass (before reaction): test tube + HCl(aq) + stir bar + capsule 27.000 g Mass (after reaction): test tube + HCl(aq) + stir bar + capsule 25.000 g Volume of water displaced from the squirt bottle 146 mL Temperature of the CO2(g) 298.5 K Pressure (atm) 1.012 atm Using this data answer each of the questions below. Enter your answer to three significant figures and enter only the numerical value in the answer box. Calculate the mass of CO2(g). Calculate the number of moles of CO2(g). Calculate the density of CO2(g) in g/L. Calculate the molar mass of CO2 assuming a temperature of 298.5 K. Calculate the Gas constant, R, in L*atm/K*mol. Calculate the % error of the value of the Gas constant, R.

Hydroxyapatite, Ca₁0 (PO4) 6 (OH)2, has a solubility constant of Ksp = 2.34 x 10-59, and dissociates according to Ca10 (PO4)(OH)2(s) = 10 Ca²+(aq) + 6 PO¾-¯(aq) + 2 OH(aq) Solid hydroxyapatite is dissolved in water to form a saturated solution. What is the concentration of Ca²+ in this solution if [OH] is fixed at 3.60 × 10-4 M? [Ca2+] = M

Hi! I need help to find the molar concentration of solute, and ksp values please. Thank you.

The following series of reactions were carried out. PbCO3(s) +2HNO3(aq) ---> Pb(NO3)2(aq) +H2O(l)+CO2(g) Pb(NO3)2(aq) + 2HCl(aq) ---> 2HNO3(aq) +PbCl(s) (a) if a student startes with 2.871 g of lead(II) carbonate for the first reaction and all other reagents are in excess, what is the theoretical yield of lead(II) chloride solid? (b) If the student isolates 2.385 g of lead(II) chloride, what is the percent yield.   (please indicate which are the final answers, thank you.)

b My Questions | bartleby N MyLab and Mastering O Chem 131 Ch 8 Flashcards | Quiz x Course Home A openvellum.ecollege.com/course.html?courseld=16962209&OpenVellumHMAC=7148a2eb283445d6406a0f326efaf3a4#10001 O My Courses C-C 348 C= C 614 C-H 413 H– Cl 431 C-C1 328 O 304 O -38 O -44 O 38 O 2134 ENG 3:36 PM P Type here to search 68°F 梦 的 US 11/5/2021 近

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Aktiv Chemistry → C < + app.101edu.co b Answered: A student combined [ENG SUB] I Belonged To You X + Time's Up! What quantity in moles of NH, are there in 70.3 mL of 0.200 M NH₂? 3 1 4 7 +/- G 0.0735 mol 2 3 5 8 6 9 =S 0 Submit X C x 100

Aktiv Chemistry → C < + app.101edu.co b Answered: Complete the balanX M Your Chemistry answer is ready X 1 Complete the balanced molecular chemical equation for the reaction below. If no reaction occurs, write NR after the reaction arrow. Be sure to include the proper phases for all species within the reaction. ₁ + ■ Reset + Cu U 2 3 Cu₂SO (aq) + Na PO₂(aq) - 2 □2 ☐ 3 OC ) 4 NR Time's Up! P a Amazon.com: LINSY HOME Cor X a Amazon.com: bulletin board fo X LO 5 05 + 0²+ 07 6 7 8 9 0 = (s) O 3+ Na 4+ • x H₂O ☐9 口。 (1) (g) (aq) S Delete Update: Submit

Discord | #-courtyar x y! mdc.edu - Yahoo Search Resu X V Official Miami Dade College X ← → C www-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-UibwdleAUz2IYCcR4NM7yr_IpMriNwxObE8BNBktcRGBtTHK1XmgWvpNI8wuDkZtcqnDqEtC1XWgHvKTc... ☆ M Gmail ||| = YouTube OKINETICS AND EQUILIBRIUM Calculating the change in concentration after a whole number o... Translate V The rate at which a certain drug is eliminated by the body follows first-order kinetics, with a half life of 68 minutes. Round your answer to 2 significant digits. 82°F Partly sunny Hg mL Explanation Suppose in a particular patient the concentration of this drug in the bloodstream immediately after injection is 0.074 µg/mL. What will the concentration be 272 minutes later? Check X MHCampus/Connect(ALEKS) X A ALEKS-Mia Reboredo - Lear X Ś L Q Search + 1/5 © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Acce 四 e o 4) 5