Why does the lambda max of indigo dye is at 619 nm and its importance to determine?

Q: (a) In an experiment, a gas contracts from 0.674 L to 0.243 L under a constant external pressure of…

A: Given - (a) Initial volume of gas = 0.674L      Final volume of gas = 0.243L      Pressure = 2.138…

Q: Finding the side length of a cube from its volume in liters A technical machinist is asked to build…

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Q: A student ran the following reaction in the laboratory at 480 K: PCI 5(9) =PC13(g) + Cl₂(g) When he…

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Q: The 50.00 ml burette that is used in the laboratory is 10 times more accurate than the 100 ml…

A: Here we have two measuring instruments for measuring the volume of solution.  Volume of Burette =…

Q: 6 A solution containing 4.48 ppm KMnO4 exhibits 85.9% transmittance in a 1.00 cm cell at 520 nm.…

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Q: cl CI N=

A: Symmetry elements present in the tetragonally compressed tetrahedral complex: S4 σd : Point group is…

Q: 2. The form of the Ideal Gas Law that we used in class is pVmRT, where p is absolute pressure, V is…

A: We have pV= mRT, where p is absolute pressure, V is volume, R is the specific gas constant and T is…

Q: The wavenumbers of the first 5 absorption lines in the microwave spectrum of the ¹²C¹6O molecule,…

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Q: How the Half Cell Potential of an electrode is measured.

A: Half cell potential of cell is also called standard electrode potential.

Q: . You have 41 mL of water in a graduated cylinder. After dropping a pebble into the graduated…

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Q: The harmonic oscillator model is a good approximation of atomic stretching. (i) Use an energy level…

A: A question based on molecules that is to be accomplished.

Q: Prove that the specific energy and energy density of ethane and ethanol are the values shown in the…

A: Here Specific energy and Density of Ethane and Ethanol Are given. Energy density is defined as the…

Q: Identify the hybridization (sp, sp2, sp³) of each carbon atom in the following molecule.

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Q: 1. Determine the kinds of intermolecular forces that are present in the compound CH₂OH. a)…

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Q: 7. Identify the frontier orbitals Mg atom in its ground state.

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Q: OTHER TYPE OF SINGLE REPLACEMENT A. Metal replaces H in water H₂O can be written H[OH] also as UBHS…

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Q: How many lone pairs are on the molecule shown below?

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Q: A chemist has a block of iron metal (density is 7.87 g/mL). The block weighs 2.10 g. What is the…

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Q: Which of the following scenarios would have a greater osmotic pressure? a) 10 M lithium chloride on…

A: Osmotic pressure is a colligative property so based on the number of solute particles we can tell…

Q: Name of them are Element Magnesium Atomic Symbol 80 34Se 228 88 Ra Number of Protons 28 Number of…

A: In an element : The number of protons in a nucleus is equal to the atomic number. The number of…

Q: Fit the following IHNMR spectrum to one of the compounds shown below, calculating the pairwise…

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Q: With which of the following ions would you expect a precipate to form after the addition of silver…

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Q: Area or Field Medicine ommunication Consumer Product Some Chemical Components (Chemical Formula) Use…

A: Consumer Product  Consumer products are those that are purchased by the typical customer for…

Q: d. Given that 6.02 x 1023 ethanol molecules have a mass of 46.04 g, calculate the number of ethanol…

A: Number of molecules of ethanol in the film can be calculated from the mass of ethanol in the film.

Q: Begin Scenario You have to prepare 100.0 mL of a 0.250 M solution of sodium carbonate. You have a…

A: The concentration of the desired solution, C = 0.250 M or 0.250 mol/L  Volume of the desired…

Q: From the following data (ESSAY DPPH & METHANOL), make a graph of the adjusted model Concentration…

A: A question based on absorption that is to be accomplished.

Q: Use   the    symbols    d+     and    d-     to    show    the    direction    of    the    polarity…

A: Here given d+ and d- are defined as d+ denoting the partial positive charge due to polarity in the…

Q: What is the density of polyethylene (in g/mL) to two significant figures at 25 ∘C

A: Polyethylene or polythene is commonly known as plastic. It is generally the polymeric form of…

Q: For a two electron system, is (1, 2) Operator S₂ = $1z + $2z? If so, what is the eigenvalue? ($12…

A: Electron Negatively Charged Exist outside and surrounding of the atom

Q: Calculate oral dosage in teaspoons (tsp) of Tylenol suspension liquid (32.0 mg/mL) for a 27.5 lb…

A: Given:-Child weight= 27.5 lb               Recommended dosage= 13.0 mg/kg               Tylenol…

Q: the following equations (1-3) C(s) + 2 H₂(g) → CH₂(g) - values, determine the heat or reaction at…

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Q: 7. Calculate the pH of a buffer solution consisting of 0.50 M HClO (Ka = 2.9.10 ) and 0.60 M NaClO.…

A: Here we are required to find the pH of the solution

Q: 6. Perform the following calculations and report each answer with the correct number of significant…

A: Significant figures are the figures that are required to represent the accuracy of decimal numbers.…

Q: 3. Use the data to calculate the heats of hydration of lithium chloride and sodium chloride. Which…

A: The molar heat of Hydration is defined as Heat released during the dissolving of one mole of…

Q: The demand in a water distribution system averages 15 cfs. What is the total annual demand in acre…

A: The cfs in the given problem is cubic feet per second. Use the given conversion factor to convert…

Q: # 65 of 214 A2 equivalence 25.00 mL of a solution containing 0.1333 M ammonia (K = 1.76 x 10-5) is…

A: Concept based on buffer solutions.

Q: -3. Ctiven the standard of the C₁²/Cu and the cuticu Couples are +0.340 v and +0.522 V,…

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Q: Draw a Lewis structure for each conjugate acid or base. Write in any non-zero formal charges and…

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Q: 19.78 mL of bromine contains 6.022 x 1023 bromine molecules. How many bromine atoms are in 3.00 L of…

A: Given -> Volume (V1) = 19.78 ml = 0.01978 L (1L = 1000 ml) Number of bromine molecules in V1=…

Q: For b) A increase in entropy the order should be: 4A(l)-->4A(g) since an increase in entropy means…

A: Entropy : Entropy is the measure of randomness of the system. More the randomness, more is the…

Q: 1.2-gg sample of carbon dioxide (CO2CO2) is fully decomposed into its elements, yielding 0.314 gg of…

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Q: A 55.6 g sample of glass is put into a calorimeter (see sketch at right) that contains 300.0 g of…

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Q: 2. Identify the different carbon and hydrogen environments in the following molecules. Use letters…

A: To represent different Hydrogen we can use A,B,C,D etc and for Carbon 1,2,3,4 etc is used. The…

Q: Add the numbers and round the answer to the correct number of significant figures. 109.609 + 47.98

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Q: Consider the galvanic cell based on the following half-reactions. Ag+ + e → Ag 8° = +0.80 V Cd2+ + 2…

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Q: A mixture of carbon and sulfur has a mass of 9.0 g. Complete combustion with excess O2 gives 23.3 g…

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Q: Which of the following are enatiomers? НО н НО н НО НО НО н CHO -Н CHO ОН н -ОН CH2OH н -Н н -ОН…

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Q: A student sets up the following equation to solve a problem in solution stoichiometry. (The ? stands…

A: The conversion of quantity from one unit to another unit is known as unit conversion. During the…

Q: 0. Convert 27 ns into s. Enter the answer in scientific notation.

A: Given  27 ns To convert nanosecond into seconds.

Q: Interpret the NMR spectrum and give the final structure of the compound 11 10 9 7 6 5 ppm 4 3 2

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