Q: What is the cell potential, Ecell, at 298K for the following cell under non-standard conditions when…
A:
Q: Consider the following nucleophilic substitution reaction. The compound listed above the arrow is…
A: The objective of this question is to show the reaction explain to involves the nucleophilic…
Q: a) Draw as many structures as you can that have the formula C₂H₂N (ensuring that the rules of…
A: To draw the structure of an organic molecule, first, we have to calculate the double bond equivalent…
Q: Draw the structure of the product(s) of the reaction below. Be sure to indicate stereochemistry when…
A:
Q: What is the [H3O+] of a solution with a pH = 5.0? 5.0x10-1 1.0x105 1.0x10 5.0x105 5.0x10 -5 -5
A: The objective of this question is to find the concentration of hydronium ions [H3O+] in a solution…
Q: H₂N. Isobutylamine (1) H-CI (aq)
A:
Q: 4. The alkylation of methanethiolate is orders of magnitude faster with reagent #1 compared to…
A: Arrow pushing represents an arrow that shows the electron flow from the electron-rich compound…
Q: 1.) Show how you would make the target compound on the right from the starting compounds on the…
A: When a substituted benzene undergoes an electrophilic substitution reaction, the substituents on the…
Q: Calculate ∆ S for heating methane from 310 K to 867 K at constant volume.For calculating that find…
A: Entropy is a measure of randomness or disorder of the system. It is difficult to determine the…
Q: 7. When a monomer M was polymerized in solution with peroxide initiator P at two temperatures, using…
A: The objective of the question is to calculate the activation energy for the decomposition of the…
Q: how are water molecules bonded to the metal ion in KTOF3
A: The objective of this question is to show the potassium trifluorotitanate consists of potassium ions…
Q: In the reaction: H₂O + H₂O a strong acid a Brønsted base only O a Brønsted acid only H3O+ + OH,…
A: The objective of the question is to determine whether water is acting as a Brønsted acid, a Brønsted…
Q: please draw detailed mechanism. mention which one is the nucleophile, electrophile,base/ acid. Also…
A: Given is a Horner Wadsworth Emmond Wittig reaction.To find the mechanism of the reaction.
Q: Question 8 2-Methyl-1-pentene undergoes electrophilic addition reaction with the reagents,…
A: The given question is based on the Oxymercuration Demercuration reaction.The Oxymercuration…
Q: fast answer
A: The objective of the question is to balance the given chemical reactions using the oxidation number…
Q: Salt bridge A concentration cell similar to the one shown is composed of two Pb electrodes and…
A: A concentration cell is a voltaic cell that uses the same half-cell chemistry. The balanced reaction…
Q: Consider the following half-reactions: (1) The weakest oxidizing agent is: (2) The strongest…
A: Electrochemistry is branch of chemistry in which we deal with oxidation and reduction reaction. In…
Q: A 1-fluid ounce (29.573 mL) solution contains 4.5 grains (291.60 mg) of silver nitrate (E = 0.33).…
A: Isotonicity refers to the condition in which a solution has the same osmotic pressure as another…
Q: Predict the major product of the following reactions. NaOH Heat
A: Given,The reaction:
Q: 3. The isotope 212Bi has a half-life of 1.01 yr. What mass, in mg, of a 2.00 mg sample will remain…
A:
Q: Label all of the nucleophilic and electrophilic sites on the following molecule
A: A question based on introduction to organic chemistry.. For the given molecule, the nucleophilic and…
Q: How will each of the following experimental errors influence the results of your calculated…
A: The objective of this question is to show the presence of air bubbles on the metal cylinder tends to…
Q: Write the cell notation for an electrochemical cell consisting of an anode where Cr2+ (aq) is…
A: Answer:In standard cell notation anode is always mentioned on the left and cathode is mentioned on…
Q: Benzoic acid is monoprotic with a K₁ of 6.5x10-5. What is the pH of a 0.00287 M aqueous solution of…
A: The objective of this question is to calculate the pH of a 0.00287 M aqueous solution of benzoic…
Q: What is the major pro Cl CI CHC t-Bu +
A: Organic reactions are those in which organic reactant react to form organic products. In the given…
Q: Part II (2) Binding Probability, Disassociation Constant, and Binding Energy Suppose a drug has a…
A: The objective of this question is to explain tge molecular interactions, explain binding…
Q: What would be the molarity of a solution prepared by adding 36.3 grams of CaC12 (MM = 110.98 g/mol)…
A:
Q: The Ksp for NiS at 298K is The Ksp for NiS at 344K is NiS is (more/less) temperature. soluble at the…
A:
Q: What can you conclude about the stability of iodine cations in acidic and basic solutions? We added…
A: The objective of this question is to explain the stability of iodine cations in acidic and basic…
Q: What is the volume of chloroform required to decrease the concentration of iron (III) in water (50…
A: The objective of this question is to show at hand involves the extraction of iron(III) from water…
Q: 7. Fill in the missing starting materials, products or reagents for the following reactions. Pay…
A: As per the rules, only three questions can be answered.
Q: A chemistry graduate student is given 450. mL of a 1.00M chlorous acid (HCIO₂) solution. Chlorous…
A:
Q: Provide the bond-line formula (or skeletal structure) of the major organic product isolated from the…
A: Given the question, alkyne reacts with liquid ammonia.Liquid ammonia is used as a reducing…
Q: 13. Draw the Lewis dot structures for the following compounds or ions and use them to answer the…
A: Lewis structures represent the bonding between atoms in a molecule by valence electrons. It is also…
Q: H₂C O NH₂ B₂, NaOH H₂C 98 OH When an a-hydroxy amide is treated with ry in aqueous NaOH under…
A: Base abstracts an acidic amide proton, yielding amide anion 1; The amide anion reacts with bromine…
Q: The reaction of ammonium ion with nitrite ion in aqueous solution NH,+NO, N₂ + 2H₂O is first order…
A: The overall order of any reaction can be defined as the sum of the orders of all the reactants…
Q: 1. Ph ОН он н Ill ОН Me 0.1 equiv TSOH CHCl3, rt, 30 min 0.1 equiv TsOH CHCl3, reflux, 30 min
A: A carbocation is a positively charged electron-deficient species. A carbocation is formed when a…
Q: Devise a synthesis to prepare 3-methyl-1-butanethiol from 3-methyl-1-butanol. HO Part 1 of 3 step 1…
A: -> Alcoholic group is not better leaving group hence for nucleophilic substitution reaction first…
Q: Calculate the oxygen balance for 'compounds X (formula: C4H8N1008)
A: The number of moles of oxygen excess or deficient for the combustion of 100 g of a compound of known…
Q: Absorbance 1.200 1.000 0.800 0.600 0.400 0.200 0.000 Stnd: 1 -0.200 22256 0.000000 0.000050 Original…
A: A method to determine the concentration of the unknown solution is called a calibration/standard…
Q: Question 1 For the following acids, rank them from most to least acidic and give the reasons to…
A: Answer:-This question is answered by using the simple concept of determination of acidic strength of…
Q: PQ-25. Which pair of compounds are enantiomers? CI -H (A) (C) CI H-OH H-OH CI CI- H- OH CI -OH and…
A: Enantiomers are a pair of stereoisomer that exist in two forms that are mirror images of one another…
Q: Describe the structures of the following borate glasses. How many NBO are present for each glass?…
A: The objective of this question is to show the boronated glasses and their structures. Borate glasses…
Q: H2. In what type of reaction is water always a product? O decomposition O oxidation O synthesis O…
A: Any chemical reaction takes place based on certain parameters. Based on these parameters, the type…
Q: 1. From the equation AgNO3 + HCI → AgCl + HNO3 How many grams of silver chloride precipitate when…
A:
Q: 2+ Al(s) + Pb²+ (aq) Al³+ (aq) + Pb(s) 1. How many moles of electrons are transferred overall? 2.…
A:
Q: Consider the reaction, and the following standard reduction potentials: +2 Zn(s) + Cut2 Zn+² (aq) +…
A: The objective of the first part of the question is to calculate the potential generated by a cell in…
Q: Balance the following redox reaction using the half-reaction method in acidic solution. MnO4 (aq) +…
A: To balance the given redox reaction using the half reaction method in acidic solution.
Q: When the Pb²+ concentration is 2.45×104 M, the observed cell potential at 298K for an…
A: “Since you have posted multiple questions, we will provide the solution only to the first question…
Q: (b) This carbon-carbon cross coupling is working effectively if R₂ is aryl group (Ph-X), but this…
A: The success of carbon-carbon cross-coupling reactions, particularly those involving C(sp^3)-C(sp^2)…
Calculate the cfu per ml of each dilutions and cfu per ml of the stock suspension (highlighted below). Show your solutions.
Step by step
Solved in 4 steps with 3 images
- > EL session.masteringchemistry.com MasteringChemistry ROSTER-2019-SPRI-PULLM-CHEM-101 blackboard wsu Google Search MasteringChemistry: HW 8 KHW 8 Applications for Dilution Calculations K8 of8 Dilution as a procedure in analysis We sometimes purposely dilute solutions if the analyte concentrations wavelengths in the visible (and sometimes uitraviolet) range. Based on the dissolved solute's properties, we can quantify that solute's concentration are too high to permit an accurate measurement. For example, a spectrophotometer can measure the amount of light that passes through a sample solution for If the solute's concentration is too high, a relatively small amount of incident light having the wavelength that corresponds to the solute's absorption behavior will less light is absorbed, and the detector in the spectrophotometer can generate more reliable data. reach the dete ctor, which results in an inaccurate measurement (consider the result if you blocked the light with an opaque…Q/ Prepare 0.1 N and 0.1 M of 98% H₂SO4 in 250 ml. M.wt of H₂SO4 = 98 g/mol, and its Specific density (SP.gr.) = 1.09.In 6.75g of distillate >130C. After performing all necessary GC calculations, it is determined that this sample is 75.9% isopentyl acetate. What qas the actual mass(g) of isopentyl acetate that was actually in this sample? Answer to 2 decimal places
- (Preparation of 0.1 N HCI solution in 250 ml D.W) Procedure: Preparation of approximately (0.IN) HCI from 37% and 1.2 Sp.g • Calculate the Normality of the concentrated HCl from the law: To prepare (500ml) of 0.IN HCL: NI VI = N2 V2 NI x ? = 0.1 x 500 • Transfer some of distilled water to 500ml volumetric flask and add the calculated volume of conc. HCI. Mix the content thoroughly. Complete to the mark with distilled water and make a label.Q1: What is the density (g/ml) of a 3.6M Sulfuric acid solution that is 29% H,So, by mass (Mwt. = 98)? Q2: Fill the blanks with suitable answers 1: The is the thing being dissolved. ......... 2: The branches of quantitative analysis are and 3. The filterability of the precipitate depend on the of practices. Q3: Which one is correct? 1. Molality changes with temperatures. 2. Molality does not change with temperatures. 3. Molarity changes with temperatures. 4. Normality changes with temperatures. Q4: What weight of pyrite ore (impure FeS,) must be taken for analysis so that the BaSO, precipitate weight obtained will be equal to one-half that of the percent S in the sample? Note: Mwt. of Ba =32, Mwt. of BaSo4 =233, Mwt. of FeS, =119BC Broward Col x O Onelogin xe Expt. 6 pre-l xA "Expt. 7 Quiz X G .What is an x b ziprecruiter x O 12.628+ Par X E Login x + O File | C/Users/nerbs/Downloads/Expt.%207%20Quiz,%20Part%201.pdf 10 2) If absorptivity (the constant of how much light of a given wavelength the sample absorbs) and path length (how much solution there is for light to pass through) are the same, which is true for a Beer's Law solution? a) its concentration and absorbance are proportional b) its concentration and rate are proportional c) its absorbance and rate are proportional d) the solution is an alcoholic beverage
- An open tubular column with a diameter of 215 um and a stationary phase thickness on the inner wall of 0.51 um passes unretained solute through in 79 s. A particular solute has a retetion time of 467 s. What is the distribution constant for this solute? Kp = What fraction of time does this solute spend in the stationary phase? ts !! ttotalPOin Elevation Aselution in preparnd by dissolving 15.60gof ordinary ger (sueroe, CHO, molecular weight-342 amu) in 15.00 gof water Calculante the boiling peier of the solution Sacose i anovolatile nonelectrolyte Solvent TC) THC) rCkg/mal) rChg/moll Benzene, Cal 80.1 253 55 530 Camphor, Cato 204 176 37.7 Cyciohexane, CH B0.88 2.79 6.50 202 Nitrobenzene, Cll, NO, 2108 524 81 water, H0 100.0 0.00 Submit Sho A h E Try Aiverity at Anbar Cellege for Pure Belenees Analytical Chemistry 1// 1 Stage Dr. Bashar AbdulazeeR Mahmood Peperiment of Chemistry H.W: date the Formal and Molar concentrations of the constituents in 2.30 g of ethanol (g. fw%3D ) in 3.50 litres of aqueous solution. 4) Molal concentration (Molality) m The solution concentration produce from dissolved solute (mole) in solvent (kg), molality oes not change with temperature and used for physicochemical measurements. Example: Calculate the molal concentration for solution preparing from mixing 4 g NAOH with 500 g water. W 1000 4 g 1000 Solution: Molality (m) = 0.2 m %3D M.w w (g) 40 g/mol 500 (5) Concentration by percent Chemists frequently express concentrations in term of percentage Common methods include: a. Weight percent (w/w): It is the number of grams of solute per g of solvent or solution (w/w) E-) w of solute (g) w of solution or sample (g) w of solute (mg) w of solution or sample (mg) -%- %3D x 100 = %3D X 1
- Q/ Prepare 0.1 N and 0.1 M of 98% H,SO, in 250 ml. M.wt of H,SO, = 98 g/mol, and its Specific density (SP.gr.) = 1.09 .Calculate the mass percent of the ascorbic acid in the same show full solution Situation: The pounded Vitamin C tablet was half into two below are the calculated data in the experiment. Each of the half are transfered in a 250ml erlen meyer flask and added 75ml of deionized water for the vitamin C to dissolve. Then it was prepared for titration where the burette was filled with 0.09794M standardize NaOH solution then a total of with 3 drops 2% phenolphthalein indicator was added to each erlen meyer flask l, swrill it and begin the titration. below are the following data gathered: Vitamins used: Nature Made vitamin C 500mg tablet Trial 1 Mass: 0.3108g of Vitamin C tablet Initial volume: 1.6mL Final volume: 15.4mL Trial 2 Mass: 0.3349g Initial volume: 15.4 mL Final volume: 30.2 mLThe standard addition method is used to analyze a sample of a river water for mercury. Solution A is made by pipetting 5.00 mL of undiluted sample in to a 10 mL volumetric flask and filling to the mark with DI water. Solution B is made by pipetting 5.00 mL of undiluted sample and 3.00 mL of 15.0 ppb of Hg standard into same 10.0 mL volumetric flask and filling to the mark with DI. Solution A and B are analyzed using atomic absorption spectroscopy and give a percent transmittance values of 56 % and 33 % respectively (not blank corrected). A blank has a transmittance of 96%. What is the corrected absorbance of both solution A and B? A. Solution A: 0.123 Solution B: 0.463 B. Solution A: 0.463 Solution B: 0.234 C. Solution A: 0.123 Solution B: 0.234 D. Solution A: 0.234 Solution B: 0.463