During the operation of a voltaic cell, the emf decreases over time and Q increases. Group of answer choices True False

Q: Consider the reaction: Fe,03(s) + 3H2(9) 2Fe(s) + 3H20(g) Using standard absolute entropies at 298K,…

A: Fe2O3(s) +3 H2(g) --> 2Fe(s) + 3H2O(g) Number of moles = 2.19 mole Here may be answer slightly…

Q: Decide whether or not each of the lolowing metais disolves in 1 M HNO,. For those metats that do…

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Q: (A) (B) (C) (D) (E) (F) + B. + (G) (H) (1)

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Q: For each of the following, determine a. what the buffer range is (use Ka or Kb tables) b. what the…

A: Answer: Solution of weak acid and its conjugate base or weak base and its conjugate acid will act…

Q: The viscosity of methane at 20 °C and 1 atm pressure is 1.09x10-4 poise. Calculate the number of…

A: Please open the attachment.

Q: draw the structure of the organic product for each alcohol reacting with permanganate. Look on the…

A: Functional group of alochol is OH. There is oxidation of primary, secondary, tertiary alcohol in…

Q: The viscosity of methane at 20 °C and 1 atm pressure is 1.09x10-4 poise. Calculate the mean path in…

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Q: A student measures the Cr3+ concentration in a saturated aqueous solution of chromium(III) hydroxide…

A: Given , Concentration of Cr3+ is 1.23×10^-8 M We have to calculate solubility product constant.

Q: Does the “gas” of freely moving electrons in a metal include all the electrons present? If not,…

A: The flow of free electrons in a material is called an electric current.

Q: In the analysis of 0.8972 g of an impure Cl- sample (35.45 g/mol), 1.399 g of AgCl (143.32 g/mol)…

A: Answer: When we add silver ions in the solution that contains Iodide ions then silver ions form…

Q: In the analysis of 0.8972 g of an impure Cl- sample (35.45 g/mol), 1.399 g of AgCl (143.32 g/mol)…

A: 1) Correct option (b) 0.3460g 2) Correct option (b) 38.57%

Q: A voltaic cell uses the following reaction T (aq) + 2Cr TI(aq) + 2Cr (aq) has a measured standard…

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Q: Suppose a 0.32M aqueous solution of oxalic acid (H,C.0,is prepared. Calculate the equiteum molarity…

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Q: For the reaction NH,NO3(aq) N20(g) + 2 H20(1) AG° = -182.1 kJ and AH° =-149.6 kJ at 325 K and 1 atm.…

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Q: The solubility of lithium carbonate at 25oC is 1.29 g/100 g H2O.  How many grams of Li2CO3 will…

A: Solubility The amount of solute present in 100 g of solvent is known as solubility. The solubility…

Q: A 0.5000 g sample containing NaCl (58.44 g/mol), BaCl2 (208.23 g/mol), and 11.56% by mass of…

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Q: the expected major product when 1-octene reacts with Cl2 in aqueous solution (with H2O as the…

A: Given reaction is chlorination reaction.

Q: For the complex Na3[Rh(NO2)3(CN)3], what is the number of unpaired electrons in the central metal…

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Q: (b) Which chemicals are listed as hazardous? O HCI O N2OH. O CH;CO,H O NaCH;CO2

A: Chemical is any substance that has a defined composition. Some chemicals found in nature such as…

Q: What is the Le Chatelier's Principle? How is it applied in reversible reactions?

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Q: How many grams of Mg3(PO4)2 are needed to make 3.000 L of a 2.500 M solution ?  The GFW for…

A: Formula used: Mole = weight of compound/ Molar mass  Molarity = no of mole / volume in L  So no of…

Q: Determine the pH at 0%, 10%, 50%, 90%, 100% and 110% titration for 50.00 mL of 0.0200M CH3NH2 with…

A: Hii there, As there are multiple question posted. we are answering first question. If you need…

Q: Calculate the ph of 1.55 M CH3NH2. The Kb for CH3NH2= 4.4 x 10^-4

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Q: Question 29 What is the % BaCl2 in the sample? A 74.22% (B 64.72% c) 25.78% D) 23.72%

A: Given that, a 0.5000 g of a sample is containing NaCl (58.44 g/mol) and BaCl2 (208.23 g/mol), and…

Q: H2(g) + C2H4(g)- C2H6(g) Using standard absolute entropies at 298K, calculate the entropy change for…

A: Given-> Moles of H2 = 2.46 mole H2(g) + C2H4(g) ----> C2H6(g)

Q: ntify whether the following molecules are aromatic, antiaromatic or non-aromati b) c) d)

A: The following molecules are: a) - antiaromatic

Q: of the You will find it useful to keep in mind that NIl, sa weak base. O cide O an LI mel of HI is…

A: Salt of strong acid and weak base is acidic and strong base and weak acid is basic

Q: J/k AS°system

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Q: 3. Calculate cell voltages under the following conditions at 25°C: a) Zn Zn (0.50 M)ICư" (0.10 M) Cu…

A: In the representation of an electrochemical cell, conventionally anode is written on the left side…

Q: The name given to an aqueous solution of HNO3 is what?

A: Nitric acid (HNO3) is a strong acid because when it is dissolved in an aqueous solution, it…

Q: After performing precipitation gra weighed the crucible with the wei of 23.2125 g, then 23.1136 g,…

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Q: Identify acid, base, conjugate acid, conjugate base, and the relative strengths of the species…

A: Acids are species that is sour in taste and turns blue litmus red.  Bases are species that is bitter…

Q: Hatsume Mei wanted to maintain the pH of a certain solution within a specified range. What should…

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Q: Time of indicator Trial Molecular, complete ionic and net ionic equations for acid-base Time at…

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Q: ΔG = ΔG° − RTlnQ Group of answer choices True False

A: The above equation is nernst equation

Q: Convert these structures to an expanded structural formula

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Q: How many mL of 3.000 M NaOH solution are needed to react with 2.000 g H3PO4 ?  The molar mass of…

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Q: As water is heated, its [H*] increases. This means that none of these the water is no longer neutral…

A: When water is heated it breaks into hydrogen ion and hydroxide ion equally and there is no change in…

Q: B. Which of the following is the most reactive in an El reaction? Br Br Br n o wars labd A. С.

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Q: A 50.00 ml of 0.0275 M HCl solution was titrated with 0.1500 M NaOH. Calculate the pH of the analyte…

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Q: Can distillation be used to separate liquid mixtures of three or more components

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Q: A 50.00 ml of 0.0275 M HCl solution was titrated with 0.1500 M NaOH. Calculate the pH of the analyte…

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Q: For the complex [Pd(NO)4]Br4, assume NO is a strong ligand, then which statement is true The complex…

A: According to the crystal field theory the ligand atom acts as point negative change and the metal…

Q: The following data were collected for the reaction: 2A 4B + C Time Concentration of A Concentration…

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Q: Hatsume Mei wanted to maintain the pH of a certain solution within a specified range. What should…

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Q: (c) What actions should you take if you splash one of these chemicals into your eye O Use the…

A: What to do immediately when chemicals splash into your eyes?

Q: 2. Calculate E°, AG° and K at 25°C for the reaction: 4CIO; (aq) - Cl (ag) 3CIO, (ag)

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Q: Consider the photochemical isomerization A= B. At 650. nm, the quantum yields for the forward and…

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Q: ems to their respective bins Reset HCI HNO, HCIO,HNO, Nitrous Chloric Hydrochlori

A: Chemical formula and their structures Nitric = HNO3 Nitrous = HNO2

Q: 3. Calculate cell voltages under the following conditions at 25°C: a) Zn Zn" (0.50 M)lCư (0.10 M)|Cu…

A: