A sample has a percent transmittance of 50.0%. What is its absorbance?

Q: Hi, I need help with this multi-step problem. Using any of these reactions: SN1/SN2, E1/E2, Alkene…

A: here is a synthesis problem that uses a radical reaction:   Starting material: 1-hexene Targeted…

Q: A 40-mL cigarette smoke sample was collected and made to react with 10 mL of the NOx indicator…

A: A question based on concentration terms.

Q: What model can be used to describe the infrared spectrum of a diatomic molecule? State both…

A: To describe the which model can be used to describe the infrared spectrum of a diatomic molecule.

Q: The gold content of an ore is being measured. The results of these analyses are:  Content (ppt)…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…

Q: which solution, biodiesel or vegetable oil, would make a better fuel? Why?

A: Biodiesel is a type of fuel that is made from renewable sources such as vegetable oils or animal…

Q: d. NH4+ c. CHBrs e.

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Q: 23. What is the coordination number of a chromium atom in the body-centered cubic structure of…

A: “Since you have posted multiple questions, we will provide the solutiononly to the first question as…

Q: Calculate the voltage of the cell Ag(s)/AgBr(s),NaBr(aq, 1.0M)//CdCl2(aq, 0.05M)/Cd(s) AgBr + e -->…

A: in first step we will write down the anode and cathode reactions and then multiply it to get final…

Q: When the Pb2+ concentration is 9.35x10-4 M, the observed cell potential at 298K for an…

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Q: 7. Draw a Fischer projection of (S) 3-methoxy-1-hexen-4-yne.

A: 1.Fischer projection represents three dimensional structure of molecule on paper using horizontal…

Q: Chlorine monofluoride can react with fluorine to form chlorine trifluoride: Use the reactions here…

A: Equation (i) -> ClF(g) + F2(g) ---> ClF3(g)

Q: 2-Ethyl-1-butene is a trisubstituted disubstituted monosubstituted tetrasubstituted alkene.

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Q: voltaic cell reaction at 298 K: 3Ce4+(aq) + Cr(s) → 3Ce3+(aq) + Cr3+(aq) Given: Ce4+ (aq) + e- →…

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Q: A sample weighing 0.4123 g contains a mixture of benzoic acid (122.123 g/mol) and acetylsalicylic…

A: Number of mol = mass/molar mass Number of mol  of benzoic acid + Number of mol of acetyl salicylic…

Q: Gaseous ethane (CH₂CH3) will react with gaseous oxygen to produce gaseous carbon dioxide (CO₂) and…

A: Ethane reacts with oxygen to form carbon dioxide and water. The equation for the balanced chemical…

Q: For a particular reaction, AH Calculate AG for this reaction at 298 K. AG= Incorrect - -14.20 kJ and…

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Q: Predict the product of the following oxidation reaction: Draw the molecule on the canvas by choosing…

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Q: 1) The entropy of vaporization of methanol CH3OH determined at the boiling temperature is equal to…

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Q: A 18.5 mL sample of Ba(OH)2 is titrated with HCl. If 37.5 mL of 0.921 M HCl is needed to reach the…

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Q: Why are oxygen and nitrogen not greenhouse gases? Which gases are greenhouse gases?

A: Given: Oxygen and nitrogen are not greenhouse gases   1. We have to write the reason behind the…

Q: A sample of nitrogen gas occupies 10.0 liters at 25 Celsius and 98.7 kPa. What would be the volume…

A: According to combined gas law, the the ratio of product of pressure and volume with that of…

Q: 6. The name of the most stable conformation of 1,3-butadiene is

A: There is specific type of nomenclature for cis trans conformer of dienes.  The C-C single bond which…

Q: Concentration of magnesium carbonate (MgCO3) in a saturated aqueous solution of the sal at 25°C is…

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Q: The normal boiling point of a certain liquid X is 136.50 °C, but when 20. g of iron(III) nitrate…

A: Firta we need to calculate elevation in boiling point and van't Hoff factor. Then we would calculate…

Q: The following reaction was carried out at 25 degrees Celsius with the initial concentration of NO2…

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Q: When the Cu²+ concentration is 3.77x10-4 M, the observed cell potential at 298K for an…

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Q: For the following question, consider the following balanced equation. Mg3 N₂ (s) + 6 H₂O(l) → 3…

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Q: 2. 2.5 liters of oxygen gas are mixed with 3.8 liters of hydrogen gas to form water. What is the…

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Q: (c) Below is a IR, ¹H NMR and ¹³C NMR spectra of an unknown compound. Draw the structure of the…

A: IR spectroscopy is an important tool for the determination of the functional group in the compound.…

Q: Aqueous sulfuric acid (H₂SO4) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium…

A: Given data :  Mass of sulphuric acid = 8.83 g Mass of sodium hydroxide = 13.8 g  Molar mass of…

Q: 1) J) HOCH₂CH₂OH H3O+ ~ OH 1. LIAIH4 2. H3O+ H

A: -> Carbonyl compound has electrophilic center hence, it can give nucleophilic addition reaction…

Q: Please consider the transformation below and draw out all the necessary steps (note that it may take…

A: Secondary alcohol can be prepared by the reaction between Grignard reagent and aldehyde

Q: If Phoebe starts with 2.593 g of magnesium carbonate, how many grams of carbon dioxide gas would be…

A: For the given reaction, first start with the reaction of magnesium carbonate and hydrochloric acid.…

Q: How many moles of O2 (g) are needed to react completely with 52.0 L of CH4 (g) at STP to produce CO2…

A: Given:  Volume of CH4(g) = 52.0 L  STP is standard temperature and pressure at which pressure is 1…

Q: What is the osmotic pressure, in atm, of a solution made from 22.3 g of methanol (MM = 32.04 g/mol)…

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Q: C. Percentage of Acetylsalicylic Acid in Aspirin and 1. Weight of aspirin; 0.23 2. Volume of…

A: Weight of aspirin = 0.28 g Volume of aspirin = 100 mL Concentration of NaOH = 0.11 M Volume of NaOH…

Q: How could you use IR, 1H1NMR and 13CNMR to distinguish between the following compounds?

A: To distinguish between the compounds CH3CH=CHCH2OH and CH3CH2CH2CO2H, you could use infrared…

Q: 6. Write a balanced molecular equation for: Solid calcium carbonate is heated and decomposes to…

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Q: What is the name given to the apparatus where reduction occurs in a cell where electrici flows?…

A: Reduction : It is the gain of electrons or a decrease in the oxidation state.

Q: Fill in the proper reagents to complete the synthesis reaction below. H₂O/H3O* HBr 1) BH3 2) H₂O₂.…

A: Given,

Q: To balance the following reaction in acidic condition, how many moles of H₂O must be added? Mn₂04…

A: The reaction is said to be balanced when number of all the atoms and charge are equal in both…

Q: 6.00 mL of 0.0100 M EDTA is mixed with 5.00 mL of 0.0100 M Ca2+. The pH is adjusted to 10 and DI…

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Q: a) Identify the possible resonance structures for N₂O. Select all that apply. : NEO-N : 0 •N=0=N: ..…

A: Resonance structure are the structure which are drawn be delocalization of electrons.

Q: What is the R/S configuration of the indicated toms of the following molecule?

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Q: The structure of a potent analgesic agent (pain reliever) is provided below. Circle and identify…

A: Functional group- group of atoms responsible for the characteristic reactions of a particular…

Q: Be sure to answer all parts. (a) Draw a Lewis structure for SbCl5. draw structure ... (b) Does this…

A: In the given question, we have to draw the Lewis structure of SbCl5 and find whether it will follow…

Q: Identify the orbital. O Pz orbital O dxy orbital Odyz orbital O py orbital O px orbital

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Q: What is the solubility (in g/L) of aluminum hydroxide (molar mass Al(OH)3= 78 g/mol) at 25°C? The…

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Q: 5. Consider the reaction: CO(g) + 2 H₂(g) → CH₂OH(g) K₂ = 0.00625 at 500 K If H2 and CO gases are…

A: This problem is based on equilibrium concept. This is a part of chemical equilibrium where we shall…

Q: A sample with the following molecular weight distribution was found to be PVC. Which of the below is…

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UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or  ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.