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Q: For each of the following precipitation reactions, calculate how many grams of the first reactant…

A: •Here a reaction given:- K2SO4   + Sr(NO3)2 => SrSO4 + 2KNO3 •Now      First reactant is K2SO4…

Q: Which pką value best represents this molecule? NaCl 30 10 40 none of these

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Q: % v/v,% w/v Questions 22. How do you prepare 250 ml of 40% v/v glycerol? 23. How do you prepare 0.3…

A: 22)  Given :-  v/v % Glycerol = 40%  Volume of 40% Glycerol = 250 mL…

Q: A given mitochondria is about 1x107 m in diameter. An atom is around 1x10-10 m in diameter. How many…

A: Diameter of mitochondria = 1×10-7 m Diameter of an atom = 1×10-10 m

Q: Sodium hydrogen carbonate (NaHCO,), also known as sodium bicarbonate or "baking soda", can be used…

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Q: The acid dissociation constant K of carbonic acid (H₂CO₂) is 4.5 × 107. Calculate the pH of a 1.3M…

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Q: One way in which the useful metal copper is produced is by dissolving the mineral azurite, which…

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Q: 4. Provide a rough sketch and explain the proton NMR spectrum that you would expect for the…

A: The first molecule is  The predicted NMR spectra of the molecule would be

Q: 8-1- a) b) Hạc, c) 5 H3C 0 + Br CH3 CH3 Br HBr. 50°C HBr 0°C

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Q: Which bond is most pol C-O b. C-F O a.

A: Nonpolar bond is the bond in which there is negligible or no electronegativity difference between…

Q: 5. The energy in our bodies mainly comes from carbohydrates, which are broken down into simple…

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Q: MISSED THIS? Watch KCV 8.2, IWE 8.2; Read Section 8.4. You can click on the Review link to access…

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Q: 2. Calculate the value of AH° for the following reaction: P4010(s) + 6PC15(g) 10C13PO(g) using the…

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Q: Reproduce the space-filling diagram of HCI (above) and label it to distinguish between the covalent…

A: Covalent radius refers to mean distance between nuclei of the bonded atoms of homonuclear molecule.…

Q: Question 2: What is the preferred IUPAC name of the compound in Figure 2? [Numbers are separated by…

A: Given compound :

Q: Phosphoric acid is a triprotic acid (Kal = 6.9 x 10-3, K₁2 = 6.2 x 10-8, and K₁3 = 4.8 × 10-13). To…

A: First, we have to find the value of pKa of phosphoric acid that should be used to calculate the pH…

Q: Determine the empirical formula of a compound that contains 54.5% carbon, 9.2% hydrogen and 36,3%…

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Q: The point group to which the water molecule, H₂O, belongs is C2v. The four associated symmetry…

A: To define the rotation matrix give as follows: R = Rz(π2) That is for C4 axis of rotation.

Q: Come up with a dilution scheme starting from 1000 μg/mL Mn stock solution so that the concentration…

A: Dilution scheme starting from 1000 μg/mL Mn stock solution so that the concentration of permanganate…

Q: .) which of the following statement Alkanes Topic

A: We have given an organic compound and we have to choose correct statements about this organic…

Q: 4. Draw the conjugate base for each of the following acids: a. b. c. NH3 d. H3O+ e. OH f. g.NH OH…

A: Conjugate base is formed when protan is abstracted from compound .

Q: 9. A compound has a molecular mass of 120 g/mol, and the information in the table below is the only…

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Q: Write first few normalized complete wave for Palm of hydrogen atom for n=1 and C = 0 n=g and 1=1 m =…

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Q: Determine the number of hydrogen atoms in one liter of water. The density of water is 1 g/ml.

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Q: Calculate the number of mmoles of titrant (either HCl or NaOH) contained in 0.050mL of a 5.0M stock…

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Q: ▼ Part A The C-H bond in CH4. Express your answers in kilojoules per mole to three significant…

A: Here we have to determine the bond enthalpy of C-H , C-C and C=C in the following given cases by…

Q: Which of the following compounds is most basic? CI I I OOC = IV ||| II III e Br IV of

A: Acid is a substance that gives hydrogen ions in aqueous solution. Aqueous solution means water in…

Q: Calculate the concentrations of all the species in a 0.100 M Na₂CO, solution.

A: The given concentration of the Na2CO3 solution is ---- 0.100 M In the aqueous solution Na2CO3…

Q: Which key piece of scientific equipment allowed the discovery of cells in the 1600s? The centrifuge…

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Q: Consider an alloy of 57 wt% FeO and 43 wt% MgO. a. Calculate the composition of the alloy in atomic…

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Q: II. Give the IUPAC name given the structure of the following organic compounds.

A: IUPAC nomenclature: In IUPAC nomenclature  a molecule's longest chain of carbons is taken as parent…

Q: 3) Write a mechanism for the following proton-transfer reaction. H + NaOH -ONa+ H₂O

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Q: Experimental results describing a protein's amino acid composition are useful for estimating the…

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Q: B. A 1.0-mol sample of an ideal gas is kept at 0 °C during an expansion from 0.003 m³ to 0.01 m³.…

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Q: How many milligrams of NO can be formed from 7.18 x 1021 molecules of NO2? Equation: 3 NO2 (g) + H2O…

A: Answer: Given chemical reaction: 3NO2(g)+H2O(l)→2HNO3(aq)+NO(g)

Q: The diagram below shows some isotherms of water. (a) Estimate values for the critical constants and…

A: To find out the value of the critical constant for water from the given isotherm. The three critical…

Q: What product is formed when benzene is treated with the following organic halide in the presence of…

A: Benzene undergo alkylation when treated with an alkyl halide and Lewis acid as a catalyst like…

Q: 21. For the decomposition of N₂Os(g), 2 N₂Os(g) →4 NO₂(g) + O2(g), the following data were obtained…

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Q: A buffer solution is composed of 5.50 mol of acid and 2.75 mol of the conjugate base. If the pKa of…

A: pH of buffer solution is calculated by using Henderson Hasselbalch equation .buffer solution is…

Q: H H3CC-CH₂CH3 OH H3CH₂C-C-CH3 OH CH₂CH3 H₂C COH CH3 H H3CH₂CC-OH H₂CrQ4 H₂CrO4 ZnCl₂ /HCI ZnCl₂ /HCI

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Q: 1. Calculate the concentration of the 3% H₂O₂ in moles/liter. Assume the density of this solution to…

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Q: Question 3^. Saved What are general rules for the lab? (Select all that apply.) If instructions are…

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Q: Cryolite, Na3AlF6(s), an ore used in the production of aluminum, can be synthesized using aluminum…

A: Since you have asked multiparts, we will solve the first three subparts for you. If you want any…

Q: a silver spoon with a mass of 111gm is submerged in 25.4 ml of water and the volume changed to 36.0…

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Q: Come up with a dilution scheme for a test solution starting from 1000 μg/mL Mn stock solution so…

A: Dilution scheme for a test solution starting from 1000 μg/mL Mn stock solution so that the…

Q: Noncovalent bonds are too weak to influence the native structure of proteins. Select one: a.

A: Proteins are made up of number of small units called amino acids. These amino acids are attached to…

Q: . C. 6. . 6. . S. .. .. _H3PO4 + КОН → K+ _B₂O3 → HCI + NaOH → C + Na + NaOH + Rb + _C6H6 + S8 → _O₂…

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Q: What is the major product of the following reaction? Select one: Br J ملل de EtON a EtOH Δ ?

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Q: 1.) i.)Using the infrared spectra provided assign peaks to the functional groups in (a)…

A: (a)3-nitroacetophenone; (b) 3-aminoacetophenone; (c) 1-(3-nitrophenyl)ethanol.

Q: List these solvent systems in order of increasing polarity 200:1 Ethyl acetate : acetic acid 15:1:1…

A: Polarity of a compound is governed by its dipole moment. The dipole moment is affected by the…

Science behind corrosion-test

Corrosion is defined as an activity that transforms refined metals into more chemically stable forms such as oxide, hydroxide, carbonate, or sulfide. It refers to the slow decomposition of things (typically metals); thanks to chemical and/or electrochemical reactions with their surroundings. Corrosion engineering is the science of preventing and controlling corrosion.

Corrosion

Corrosion is defined as an activity that transforms refined metals into more chemically stable forms such as oxide, hydroxide, carbonate, or sulfide. It refers to the slow decomposition of things (typically metals); thanks to chemical and/or electrochemical reactions with their surroundings. Corrosion engineering is the science of preventing and controlling corrosion.