For a 1st order reaction with a half-life of 0.6 seconds, how much time has elapsed when the reaction is 87.5% complete?

Q: A chemistry student weighs out 0.0606 g of phosphoric acid (H₂PO4), a triprotic acid, into a 250. mL…

A: At equivalent point:NH3PO4 x VH3PO4 = NNaOH x VNaOH

Q: If only 0.199 g of Ca(OH)2 dissolves in enough water to give 0.230 L of aqueous solution at a given…

A: Answer:Compounds those are slightly soluble in the water are called as sparingly soluble compounds…

Q: Find the new molarity of a diluted solution if 155.0 mL of water is added to 145.0 mL of 0.250 M…

A: When we dilute a concentrated solution with pure water, the mole of solute remains constant in the…

Q: HBr ОН 59

A: Here a secondary alcohol is given and we have to determine the product of given reaction

Q: formation of X- (aq) assume all atoms used are moatomic solids in the standard state

A: All the atoms of X are monoatomic solids in standard form, i.e, as X(s).

Q: A standard galvanic cell is constructed with Zn2* | Zn and Fe²+ | Fe half cell compartments…

A: A galvanic cell is constructed by two half cells which are Zn2+|Zn and Fe2+|Fe. We know that, in…

Q: Balance the following redox reaction in basic solution: Cr₂O72 + CN1 -> Cr+3 + CNO-1

A: The oxidation state of Cr in  is +6The oxidation state of C in CN- is +2.The oxidation state of C in…

Q: For the electrochemical cell; Pb(s) + 2Cut(aq) → Pb²+(aq) + 2Cu(s) (E° = 0.476 V, [Cut] = 2.50 M),…

A:

Q: Determine the number of moles of atoms in each of the following samples:  (a) 6.2g of Al (b)…

A: No. of moles =

Q: Calculate the amount of heat needed to melt 97.8g of solid acetic acid (HCH3CO2) and bring it to a…

A: Given mass of acetic acid is 97.8 g.the molecular mass of acetic acid is 60.052 g/mol.The melting…

Q: What is the major neutral organic product for the following sequence? НО. 1. POCI pyridine 2. OsO4…

A: Organic transformation

Q: In infrared spectroscopy, the following carbon-hydrogen bonds have peaks at different wave numbers.…

A: Infrared spectroscopy shows different peaks for different types of stretching and bending…

Q: 24) Which one of the given compounds is consistent with the following IR spectrum? MAN

A: Question 24:  To identify that the IR spectrum is consistent with which of the given…

Q: 2. There are three identical flask containing H2, O2 and Ne at SATP. Which of these is TRUE?…

A: Avogadro law states that at identical conditions of temperature and pressure equal volume of all…

Q: Submission Question Draw the products formed when the tetrahedral intermediate shown below breaks…

A: In general organic chemical reaction, 99, 254); position: relative; display:…

Q: Predict the product for the following reaction. B. H عهده فيلام لله owner H H NaOH/H₂O A D H

A: Here a carbonyl compound and Naoh and heating is provided so here aldol condensation reaction will…

Q: For the reaction: H₂(g) + Cl2(g) = 2HCl(g) Kp = 36 If this reaction starts with both H₂ and Cl2 at…

A: Partial pressure of H2= 1.5 atmPartial pressure of Cl2 = 1.5 atmPressure equilibrium constant, Kp =…

Q: Isotopes become most stable around... the 1st elements on the periodic table. the 27th element on…

A: The amount of energy required to separate all the nucleons present in the nucleus is known as…

Q: 2C.) Provide missing reagent(s) in the box. Br OH

A: For a Diels-Alder reaction to occur the diene should be in s-cis conformation

Q: IIL Theoretical yield of chemical reactions Gaseous methane (CH4) reacts with gaseous oxygen gas…

A: When gaseous methane ( CH4 ) reacts with gaseous oxygen ( O2 ) to form gaseous carbon dioxide ( CO2…

Q: 4. Draw the products of the hydrolysis of the following disaccharides: CH.OH снон OH ОН OH CH OH OH…

A:

Q: Question 4 Which of the following IR frequencies would be expected for cyclohexanone? Select all…

A: It is used by chemists to determine functional groups in molecules.

Q: suppose isothermally sampi gas is expanded and reversibly from 10 to 20 L at 298K. How much work is…

A: n= 1molT=298 KV1= 10 LV2= 20 LR=8.314 J/K-mol

Q: echanism for the following reaction. oll ola OH + CO₂ A

A: Decarboxylation occurs readily in beta-keto acids. A C-C bond is broken, and a C-O (pi) bond is…

Q: Give typing answer with explanation and conclusion     Name reactants and products?

A: In esterification reaction, the carboxylic acid (R-COOH) reacts with alcohol (R'-OH) to form ester…

Q: quid hexane (CH. (CH₂ (CH₂) CH3) will react with gaseous oxygen (0₂) to produce gaseous carbon…

A: A balanced chemical equation contain equal number of atoms of each elements on both sides of the…

Q: Fill in the name and empirical formula of each ionic compound that could be formed from the ions in…

A:

Q: Which of the following is the strongest acid? (lowest pKa). Hint: Which forms the most stable…

A: Organic acids and bases

Q: What is the major organic product of the following reaction? 101 B. C. D. KHANH TSOH

A:

Q: Which is the major product of the following reaction? A. B. O is & Base Major enolate C. an equal…

A: Here we are taking base so it will abstract most acidic hydrogen so let's see

Q: Given the following thermochemical equations: 4 FeS2(s) +11 O2(g) →→2 Fe2O3(s) +8SO2(g) 2 H2S(g) +3…

A:

Q: Reasoning by analogy from what you learned about solutions of weak polyprotic acids, what is the…

A:

Q: Use the reaction given below to answer the following questions. Be sure to include lone pairs (where…

A: (A)HOMO is highest occupied molecular orbital LUMO is lowest occupied molecular orbital…

Q: Question 5: What is the energy in, in J/mol, is present in radiation with a wavelength 1.357 m?

A: Use the relation between the energy and the wavelength to calculate the energy of the radiation

Q: Which two particles have opposite charges but the same mass? neutrons and protons alpha (a) and beta…

A: Charge on neutron = 0 Charge on proton = positiveMass of neutron is nearly equal to mass of…

Q: Which of the following pairs will not form a buffer when mixed together in an aqueous solution?…

A:

Q: 12. Establish a match between the presented reagents and the products of the reaction. Column 2…

A: A) Reaction of benzene with chloromethane in the presence of catalyst.B) Reaction of benzene with…

Q: For a common reaction, if AH = -35kJ and AS° = - 42 J/K Determine the value of AG at 55°C in kJ. Jy

A: As per our company guidelines, we are supposed to answer only one question. Kindly repost the second…

Q: Balance the following skeleton reaction and identify the oxidizing and reducing agents: Include the…

A:

Q: 1. What is the most probable identiy of a gas in a liter of 25 g container at 30°C and exert of 0.76…

A:

Q: What is the major organic product of the following reaction? 10: 10: A. B. H Ú Ph D. Ph o 10: 1.1…

A:

Q: Select ALL the correctly balanced precipitation reactions (i.e. if a reaction did not form a…

A: In the given question we have to identify the balanced precipitation reaction in the following.…

Q: O O Br Br 1. LiAIHA 2. H 3. H2SO4, heat ठे डे HO ? Major Organic Product

A: The given example is reduction reaction.In the first step LiAlH4 are used for reduction of ester to…

Q: 30. For each of the following DA adducts, draw the necessary diene A. B. C. MeO 한 H 아 OMe ulk

A: It is a [ 4+2] cycloaddition reaction occurring between a diene (4 electron component) and a…

Q: Draw a stepwise mechanism for the following transformation: Part 1: Part 2 out of 3 OH view…

A: An equilibrium lies between keto form (-C=O) and enol form (-C= C-OH) called Keto-enol Tautomerism.

Q: What is the major neutral organic product for the following sequence?

A: The phosphine undergoes a substitution reaction with alkyl halide, followed by abstraction of proton…

Q: f .001moles of maleic anhydride and .005 moles of 3-sulfolene were used. What are the theoretical…

A: Thereotical yield is the mass of the formed product from a particular reaction which follows the…

Q: Knowing what to look for with respect to isotopic clusters can aid in interpreting mass spectra. How…

A: Organic compounds generally contain C,H,N,O and halogens. There are 4 organic compounds given:…

Q: When a reaction is non-spontaneous DG is negative, DH is negative, and E is negative for that…

A: We know according to Thermodynamics∆G = ∆H - T∆S Where ∆G = Change in Free energy          ∆H =…

Q: Predict the product of this organic reaction: O CH3-C-CH3 + H₂ Pt PP Specifically, in the drawing…

A: As per our company guidelines, we are supposed to answer only one question. Kindly repost the second…