A scanner tube is used in STM to precisely control the tip/sample position. What material is in general the scanner tube made of and what is its working mechanism?

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A: According to the question we have three statements and we have to choose the appropriate and correct…

Q: solution is made initially with 0.350 M HIO₃ (Kc = 0.170). Once the equilibrium below is…

A: Kc is equilibrium constant and it's equal to product of concentration of product divide by…

Q: A ground state hydrogen atom absorbs a photon of light having a wavelength of 93.7 nm. What is the…

A: The energy of nth stationary state of hydrogen atom is given by the formula  En = -2.18×10-18n2 J…

Q: The pH of a 0.0060 M solution of HNO₃ is

A:

Q: 3. The Michaelis Constant for an enzyme is A) the rate of product formation B) 12 Vmax C) the…

A: Michaelis Menten constant is equal to the initial concentration of substrate when the initial rate…

Q: A 2.00 L solution contains 0.545 M NH3 and 0.641 M NH4A.  (The Kb of NH3 is 1.86⋅10−51.86⋅10-5).…

A:

Q: ou need to make an aqueous solution of 0.140 M copper(II) sulfate for an experiment in lab, using a…

A: mass = mole × molar massM = moleL1000 ml = 1 L

Q: D Question 1 Which aqueous compound is not a strong acid? O HCIO4 O HCIO3 O HCI O HCIO₂

A: Since you have asked multiple questions we will solve the first question for you if you want any…

Q: Calculate the number of atoms in a 3.36 x 10³ g sample of boron. Macmillan Learning number of atoms:

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: 4. What is the relationship of the following two structures? OH OH I NH A. Enantiomers B.…

A: The given problem is based on the isomerism in organic compounds.

Q: Which of the following complexes would likely have the smallest Δo energy? Group of answer choices…

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Q: Draw the skeletal line bond structure of 1-methyl-4-nitrobenzene

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Q: Macmillan Learning At a certain temperature, 0.335 mol CH4 and 0.668 mol H₂O is placed in a 3.50 L…

A: KC is the ratio of concentration of product and reactant at equilibrium Kc = [product]eq /…

Q: Classify each chemical reaction: Reaction H₂SO3(aq) → H₂O (1) + SO₂(g) - Cl₂(g) + 2KI (aq) 2K Cl(aq)…

A: Balance chemical reactions are those which number of atoms on both side of the reaction are equal.…

Q: What is the name of the process shown below and how does it work (be specific about what happens to…

A: To describe what is happening in the given reaction along with class of biomolecules involved. Also,…

Q: How does an edge to face aromatic interaction cause an upfield shift of the interacting hydrogen…

A: Given aromatic ring

Q: Overall equation for Ba(NO3)2 and Na3PO4: lonic equation for Ba(NO3)2 and NaCl: Net-ionic equation…

A: Here, we have to write the overall equation for Ba(NO3)2 and Na3PO4, the ionic equation for Ba(NO3)2…

Q: a) What will be the H+ concentration in a 1.0 M HCN solution? (HCN is a weak acid: Ka = 4.0x10-1)…

A:

Q: Which has an acitivity coeeficient closest to 1 with ionic strength = 0.001 M? a. Lithium ion b.…

A: From Debye-Huckel Limiting Law,                   log γ± = - A |z+ z-| IWhere, γ± : Activity…

Q: Cycloheptatriene (shown below) is non-aromatic because it A) does not have 4n+ 2 pi electrons. B) is…

A: For compound to be aromatic it must be Cylic Planer Fully conjugate  Contains (4n+2) pi electrons.…

Q: Write the charge balance equation for a dilute solution of sulfuric acid

A: Balanced chemical equations are those in which number of atoms on both sides of equation are equal.…

Q: H₂ C -OH H- HO- -H H-OH HOH CH₂OH Drawing Atoms, Bonds and Rings Tap a node to see suggestions.…

A: each of two isomers having one different configuration out of all several asymmetric carbon atoms…

Q: Assume you mix 100.0 mL 0.200 M CsOH with 50.0 mL 0.400M HCI, the temperature of the combined…

A: The balanced equation is: HCI(aq) + CsOH(aq) → CsCI(aq) + H2O(l) Since all the coefficeints are 1,…

Q: . Give a synthesis for the following molecules. You can use any isomer of butene, C.H., as a…

A:

Q: 20 ml of 1M NaOH solution and 20 ml of 1M HCl solution both at room temperature were made to react…

A: This problem is based on heat of neutralization of acids and bases. We know that when 1gram…

Q: Differentiate density, specific gravity, molar volume, and partialmolar volume. 2. What is the…

A: Question 1 --> Density is defined as the mass per unit volume whereas when we talk about the…

Q: A 200.0 mL beaker filled with oil has a mass of 293.2 g. The mass of just the beaker is 130.2 g.…

A: Given - Volume =200.0 mL  Mass of oil with beaker =293.2 g Mass of beaker=130.2 g

Q: A 1401 kg1401 kg car is traveling down the road at 85.8 km/h.85.8 km/h. While traveling at this rate…

A: The kinetic energy of the vehicle in kilojoules is  ≈ 398 kJ

Q: Ionization energy is the energy needed to eject an electron from an atom. Compute the ionization…

A: n1= 5 n2 = ∞

Q: A segment of double-stranded DNA contains 200 purines and 200 pyrimidines. It could be composed of O…

A: we need to select the correct statement for the DNA segment

Q: 1.Name the following compounds: (a) [CoBr(NH3)5]SO4 (b)[Al(OH)4(H₂O)₂] (c)[RhCl₂(NH3)4]*…

A: Bis

Q: Step 1 Add curved arrow(s) to draw step 1 of the mechanism. Modify the given drawing of the product…

A: Given reactants are as follows:

Q: Question 6 Which compound is the weakest acid? O Bicarbonate ion (HCO3) O Formic Acid (HCOOH) O…

A: Explanation :

Q: 4. What volume of 2.50 M hydrobromic 2 All acid solution will be consumed in reacting with 30.00 g…

A: Given equation for a reaction between Al and HBr : 2 Al(s) + 6 HBr(aq) ----> 2AlBr3(aq) + 3 H2(g)…

Q: 1. The cathode in a galvanic and electrolytic cells is: negative in certain type of cells the site…

A:

Q: In a certain temp, Keq for reaction C6H6 is 4 If equilibrium concentration of C₂H2 is 0.5 mol/L…

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

Q: Curved arrows are used to illustrate the flow of electrons. Follow the curved arrows and draw the…

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Q: 6. Give the IUPAC name of the molecule: OH F

A:

Q: A ground state hydrogen atom absorbs a photon of light having a wavelength of 92.57 nm. It then…

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Q: What volume of 0.10 m NaOH can be prepared from 250. mL of 0.30 m NaOH?

A: Given : intitial molarity = 0.3 M               Initial volume = 250 mL                Final…

Q: which one is limiting reagent？？

A: This is a two-step reaction. Step-1: 2-bromopropane reacts with Mg to give the Grignard reagent,…

Q: The air pressure in the tires of an automobile is adjusted to 36.0 psi at a gas station in San…

A: Initial pressure - 36.0 psi  Initial temperature - 68 oF Final temperature - 172 oF

Q: If you have 0.150 M Na2CO3 (aq), what is the concentation of each type of ion in solution?     how…

A: We have to find out the concentration of each ion in solution. Given, 0.150 M Na2CO3 (aq),

Q: What quantity in moles of C₂H₅OH are there in 81.5 mL of 0.250 M C₂H₅OH?

A:

Q: Rank the basicity of the following compounds from weakest to strongest: a. CF3COO, C(F)H₂CH₂O.…

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Q: The gamma rays from cobalt-60 isotope are used in cancer radiation treatment. The daughter in this…

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Q: Methane is the main component of natural gas. Using the given reaction enthalpy, calculate the heat…

A: Given - CH4(g) + 2O2(g) -> CO2(g) + 2 H2O(I) -------(1)  ∆H= -861.3 kJ  Weight of methane =1 kg =…

Q: Cs+ and I- Express your answer as a chemical formula.

A:

Q: One day in lab, while washing some glassware, your friend Alan (an expert chemist) says this:…

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Q: Can you keep 1 M HCl in an iron container. If the answer is no, write a balanced equation for the…

A: balanced equation for the reaction.

Photochemistry

Photochemistry is the part of chemistry that studies the various mechanisms of reactions that are triggered by the presence of light energy. It also helps to study the changes involved in a molecule that can undergo the absorption of radiation.