How many moles of Fe2O3 will be produced from the complete reaction of 1.04 moles of O2 as described in the following equation: 4Fe + 3O2  2Fe2O3

Q: 23. In the three-step synthesis below, at least one of the steps would fail as shown. For each step,…

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Q: What is the pH of 10.0 mL of 0.0020 M HCl?     3.70     10.0     5.70     2.70     0.70

A: Given the on concentration of HCl solution =  0.0020 M The pH of 10.0 mL of 0.0020 M HCl =

Q: Determine the lattice and appropriate basis for the crystal structures shown in the figures. a) NaCl…

A: NaCl exists in face centered cubic (fcc) crystal structure, with coordination number between…

Q: Directions:  Read the following problem and solve the following questions. Show your complete and…

A: 0.56 grams of 90Sr has a half-life of 28.8 years .We have to calculate the activity of the…

Q: Be sure to answer all parts. What ammonium salt is formed when the amine is treated with HCI.…

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Q: OH OH OCH₂ ii + H 1. DIBAL-H 2. H₂O* cat. H*A* excess NaOCH3 Br Br KCN HCN

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Q: 2 attempts left Check my work Click the "draw structure" button to launch the drawing utility. Draw…

A: Here we are required to predict the product of the reaction.

Q: Q6/ 15 mL of 0.03 M Pb(NO3)2 is added to 20 mL of 0.2 M NaCl. Predict if precipitate of PbCl2 will…

A: If Qsp > Ksp then precipitate formation will takes place. We have,  Now, lead(II) chloride…

Q: can you provide more explanation on impacts of SULFUR MANAGEMENT : explain the points below:…

A: Sulfur management

Q: Use partial orbital diagrams and Lewis symbols to depict the formation of the following ions from…

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Q: Using the thermodynamic information in the ALEKS Data tab, calculate the standard reaction entropy…

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Q: Q6/ 15 mL of 0.03 M Pb(NO3)2 is added to 20 mL of 0.2 M NaCl. Predict if precipitate of PbCl2 will…

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Q: A chemical reaction has the rate law R = K[A]²[B] The rate of the reaction is found to be 4.3 M/min…

A: Given, R = 4.3 M/min [A] = 0.20 M [B] = 0.10 M

Q: 1. For a magnetic system, the infinitesimal change in internal energy may be expressed as du = TdS +…

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Q: Intramolecular reactions are also observed in Friedel-Crafts alkylation. Draw the intramolecular…

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Q: Cell Notation H5XO6/XO3* XO3/ XO- XO3/X2 XO/X2 H5XO6/X* X₂/X- E° (V) +1.63 +1.16 A +1.49 B +1.57

A: Here we have to find E° reduction of the following species A and B from the given data.  Here…

Q: 1. From this reaction, 2C₂H6 (g) + 70₂(g) →→ 4CO₂(g) + 6H₂O (1), which of the 1. following…

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Q: Based on your answer to Question 2, provide a possible set of four quantum numbers to describe the…

A: Quantum number describes about the full information about an electron.It tells about shell, orbital…

Q: Crive the Synthesis of given below Compounds with using the nucleohhlic Substitution reaction of…

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Q: Look at each process and decide wheather there is greater disorder after the change than before.…

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Q: Baking powder or sodium bicarbonate (NaHCO3), is used in baking to make cakes rise because the…

A: Baking powder is a leaving agent that is mainly used in the production of cakes, cookies, muffins,…

Q: Find the connection among the words below and choose the letter of the word which is different. OA.…

A: D. Ethidium bromide  A. Tracking dye

Q: Based on the data in the table below, answer the following questions. Element Atomic number L 3 M 6…

A: In chemistry, ionic compounds are those compounds which  made up of two ions. overall compounds are…

Q: An ore was found to contain iron and ferric oxide, if 0.5g of the ore, after solution in acid and…

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Q: Draw the Lewis structure of elements L, M, T, W, and X. Predict the element's as in the Periodic…

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Q: Br 0 = d Br Br HO CH3 0.0⁰-0-0 N=N- NO₂

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Q: Name the two gases used in NMR spectrometer. What are their functions in the equipment?

A: NMR spectrometry allows the molecular structure of a material to be analysed by observing and…

Q: KCO3 + Br ⟶ KBr + CO2 + KBrO3 balance The redox reaction and include the computation of oxidation…

A: Redox reaction can be defined as the reaction in which both process of oxidation and reduction…

Q: Calculate the higher heating value of liquid octane.

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Q: Calculate the Ksp for PbS(s) using the following equation at 25.0 oC with 2 electrons exchanged.…

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Q: A reaction has the following thermochemical values at 283.15 K: ΔH = -183.3 kJ mol-1 ΔS = -160.6 J…

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Q: Liquid temperature affects micropipette ACCURACY. Higher liquid temperatures DECREASE volume…

A: ✓Pipetting at a constant temperature can improve accuracy by up to 5 %. Allow time for equilibration…

Q: e Write the thermochemical equation for the formation of calcium sulphate under standard conditions.…

A: ✓The enthalpy of formation is the standard reaction enthalpy for the formation of the compound from…

Q: 1. Predict the pH of salt solutions.

A: Given: pH of Different Salt Solutions.

Q: A solution has a pH = 9.55. What is the concentration of H3O+ in the solution, in mol L-1

A: Here we are required to find the concentration of H3O+.

Q: 1. Predict the structure of the amino acid produced by using the starting material the following and…

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Q: The pH of coffee is approximately 5.0. How many times greater is the [H+] in coffee than in neutral…

A: For neutral water the pH is always 7 ( H+ = 1×10-7) pH = -logH+ pH = -log 1x10-7 pH = 7

Q: Print the pages and answer in the space designated for each exercise: Exercise 1. Write equations…

A: To tell the products of hydroboration oxidation of given alkenes.   Note: since we are bound to…

Q: Experiment 3: Create a graph of mass (y-axis) versus volume (x-axis) for iron. Display the…

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Q: 5.1. Suggest a mechanism for the following transformation and say how you would test it. CI CI OC…

A: The given substrate is an organometallic complex in which the central metal is iridium (Ir). Let us…

Q: A solution has a pOH =13, What is the of this solution?

A: pH of a solution is the measure of H+ ions. If pH is less than 7 then solution is acidic.If pH is…

Q: Q6/ 15 mL of 0.03 M Pb(NO3)2 is added to 20 mL of 0.2 M NaCl. Predict if precipitate of PbCl2 will…

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Q: What is the activation energy (expressed in kJ/mol) of this reaction?

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Q: 26. Using the space below, provide the major product and a complete, step-wise mechanism for the…

A: ✓Esterification is the general name for a chemical reaction in which two reactants (typically an…

Q: 4. Which equation represents the second law of thermodynamics? A. A Suniv> 0 B. A S sys > 0 C. (A…

A: Entropy is the measurements of randomness.Greater the random greater will be the entropy.

Q: PERFORMANCE TASK 4.4 (CHEMICAL EQUATION) MELC: Apply the principles of conservation of mass to…

A: Combination reaction-  a reaction in which two or more elements make a single compound after…

Q: In titration of 100 ml 0.3 Mn²+ with 0.7 M EDTA (pH = 7), when 50 ml EDTA is added what is pMn²+?…

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Q: A lead concentration cell is generating a voltage at 25°C.  What will that voltage be (in V) if the…

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Q: (Q90) In the reaction shown here: Sn4+ (aq) + Zn (s) ---> Sn²+ (aq) + Zn²+ (aq) An inert (e.g.,…

A: Oxidation means loss of electrons and reduction means gain of electrons.

Q: What is the purpose of adding ammonium chloride in the assay?

A: Answer - Ammonium chloride has many purpose in chemistry. In general it can be used as a source of…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.