Cu/Ni Ni/Al Cu/Zn Ni/Fe Cu/Pb Ni/Sn Cu/Mg Cu/Al Cu/Fe Ni/Zn Ni/Pb Ni/Mg

Q: 88 The illustration to the left represents a mixture of nitrogen (blue) and oxygen (red) molecules.…

A: we need to fill the boxes, using the given illustration and the balanced equation

Q: The solution has [H+] = 2.2x10^-7M.  The solution is A. acidic B. basic

A: pH of solution is defined as negative logarithm of hydrogen ions present in the solution

Q: 1. What is the final temperature when the 625 g of water at 75.0°C loses 7.96 x10^4 J?

A:

Q: HN- proline 0₂ H₂0 co₂ H₂0 H N- co₂ pyrroline- 5-carboxylate O=C ¯o NADP+ CO₂ NADPH NH₂ glutamate…

A: This is a biosynthetic reaction

Q: Which of the following compounds could be added to a solution of HCN to create a buffer? HNO3 O…

A:

Q: Point out where is the endpoint of the reaction as shown below. Determine what indicator other than…

A: Equivalence point is where there is sudden change in pH

Q: Assuming all second row atom have an octet, complete the following Lewis structure by providing lone…

A: Given structure: We have to complete the Lewis structure by providing lone pair electrons and…

Q: When I submit this answer to my homework software I receive the message "Your mole ratio between H2…

A:

Q: 1. An AM station broadcasts rock music at "950 on your radio dial." Units for AM frequencies are…

A:

Q: trouble understanding the TLC labs.  Could someone help explain how to tell which compound has a…

A: We have to tell between benzoic acid and trans-stilbene which one has a higher Rf value.

Q: 52/20 ZI ZI ZI

A: The probable monomers of the following polymer is

Q: What is the pH of a solution with [OH-]=2.2 x 10^-7M?

A: In this question, we will determined the pH of the basic solution. So, first we need to determine…

Q: An aqueous solution of hydrobromic acid is standardized by titration with a 0.144 M solution of…

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Q: Which of the following has the correct assignment of oxidation numbers? a. SiO₂ (Si: 4+, O: 2-) b.…

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Q: use the vander waats equation of state to calculate the pressure p of 3.40 mol of 1₂0 at 475k in a…

A: Answer p = 6.007 atm

Q: How many MOLES of dioxygen difluoride are present in 2.51 grams of this compound? How many GRAMS of…

A:

Q: Phosphorus is present in safety matches, but also appears in a variety of ions, covalent compounds,…

A:

Q: Sodium hydroxide solution was standardized against one gram of potassium phthalate. First trial used…

A: Given , mass of potassium phthalate  = 1g

Q: Choices: L-оли НО OH XxX V-сяч nka 1 UL-сяч nka-11 nka

A: Here we have to match the correct order of pKa of the following compounds.

Q: 2 PMeCl2 + B2O3 SnO₂ Li[AIH4] 3 H2O 5 Br2 excess C, A - 2 СО 2 AsBr5 2 H2O2 - 2 H2O 5 EtMgBr - 5…

A:

Q: Neither of the methods of making pentan-1,4-diol will work. Explain why not-what will happen…

A: Grignard reagent can be made to react with aldehyde or ketone followed by workup to give alcohol.…

Q: 2. One chemical that is added to water during water treatment . How is it added to water and why ?…

A: During water treatment different type of chemicals added with water to remove the pathogens present…

Q: 25.0 mL of 2.00M HCI and 25.0 mL of 1.00M NaOH are mixed in a coffee cup calorimeter. The…

A: Given,  Molarity of HCl = 2.00 M  Volume of HCl in mL = 25.0 mL  Molarity of NaOH = 1.00 M  Volume…

Q: Draw the major product of this elimination. Consider regiochemistry and stereochemistry. Ignore…

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Q: The mechanism proposed for the oxidation of iodide ion, I, by the hypochlorite ion, CIO, in aqueous…

A: In the multistep reaction, the slowest step is the rate determining step of that reaction.

Q: B A OH Compound A can be converted to cyclobutanol using the reagent Compound B can be converted to…

A: Organic chemistry in which we deal with organic reactions which covert organic reactant in to…

Q: Rewrite the equation as thermochemical equations in two different ways to include the heat…

A:

Q: 8. The energy of a photon is given by the equation E = hf, where E is the energy, f is the…

A: The energy of a photon is given by: E = hf ......(1)

Q: What is the pH of 3.5 x 10-3 M HCI?

A: pH is defined as the negative log of the concentration of H+ ions. pH = -log [H+]

Q: 10. A reaction at 45 °C has the following enthalpy and entropy: AH° = -86.6 kJ and AS = 382J/K. a.…

A: ΔG0 = ΔH0 - TΔS0 If ΔG0 = -ve, the reaction will be spontaneous If ΔG0 = +ve, the reaction will be…

Q: 8. What is the pH of a buffer solution made with 0.53M benzoic acid with Ka = 6.5 x 105 and 0.478M…

A:

Q: 18.20 Write a stepwise mechanism for each of the following reactions. (a) O (c) O OH O HOG 475 NaOH,…

A: Under basic media double bond migration takes place because highly substituted, conjugated double…

Q: Which of the following salts will produce a basic solution when added to p water? Ο και Nacio O…

A: we have given four salts. a salt of a strong base and weak acid will produce a basic solution when…

Q: 1. The following redox reaction was constructed at 25.0°C. Pb²+ (aq) + Mg(s) → Pb(s) + Mg² (aq) a.…

A: The given reaction is :  Pb2+ (aq) + Mg (s) ----------> Pb (s) + Mg2+ (aq)  d. As the reaction…

Q: M. Id: Svetion, Q.1) In the first order reaction of dye' with NaOH solution at 25 C, when 4 ml of…

A: #1: Given the half-life of the reaction, t1/2 = 11 minutes Recorded absorbance after 4 min = 0.635…

Q: Balance the following chemical equation: 1. C4H10O + O2 → CO2 + H2O

A: The given equation is  C4H10O + O2 → CO2 + H2O

Q: Find the of ψ123 for a three-dimensional particle in a box

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Q: q. pV = nRT r. sin 0c = n₁ n₂ 1 s. qV= = 2/27 == my ² ‚T= ‚0c = C , V =

A: Rearrange the given formulas of the following--

Q: Consider the following equilibrium system at 686 K. PCl5(g) PCl3(g) + Cl2(g) If an equilibrium…

A: At equilibrium, the rate of the forward and the reverse reaction is the same and the concentration…

Q: What volume in liters of H₂ gas would be produced by the complete reaction of 2.93g of Al solid at…

A:

Q: True or False (use your periodic table/data sheet when appropriate) a. A Geiger counter detects…

A: a. True. A GM counter detects radiation from flashes of light generated by phosphors. b. True.…

Q: Identify the major product for the following reaction. (CH3)2CuLi H₂O H*

A: Organic compounds can be defined as the compounds that contain carbon and hydrogen atoms in a…

Q: What will 628.0 mg Zr(HPO4)2 (MM= 283.0 mg/mmol) weigh after ignition to ZrP207 (MM=265.0 mg/mmol)?

A: Given that -  Mass of Zr(HPO4)2 = 628.0 mg  Mass of ZrP2O7 formed after ignition of Zr(HPO4)2 = ?…

Q: CH3(CH2)4Br

A: The name will be hept-1-ene

Q: Iodine-131 has a half-life of 8 days. What fraction of the original sample would remain at the end…

A: Half life is the period at which concentration of reactant reduces half of its original value.

Q: Cyanic acid (HOCN) is an extremely acrid, unstable substance. What are the[H3O+] and the pH of 0.10…

A: Given  Concentration of HOCN (c) = 0.10 M Ka = 3.5×10-4 [H3O+] = ?  pH=?

Q: To prepare 50 mL solutions of 0.1 M CuSO4 in water (calculation to prepare chemicals in…

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Q: 11. Draw full structural formulas for all the isomers of C4H8Br2.

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Q: 1. How much heat must your body transfer to 500.0g of water to heat it from 25.0°C to body…

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Q: 4. A chemist wants to determine the concentration of an acidic solution. They start by placing 25.0…

A: Given: The molarity of the NaOH solution = 0.12 M The volume of NaOH = 7.5 mL The volume of acid…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".