The max of aspirin (molar mass 180g/mol) in neutral solution is 225 nm and e is 650 mol ¹Lcm-1. An absorbance of 1.80 was measured for a solution of aspirin, with a 1 cm path length. Calculate the concentration of the aspirin solution.
Q: f. CH g. 1. NaNH, NH3(liq) 2. Br Lindlar's Catalyst H₂, Pd/BaSO4 Pro
A:
Q: (a) Alkynes form important structural elements of the so-called enediyne antibiotics and hence…
A: When an alkyne having acidic proton reacts with base followed by reaction with alkyl halide it gives…
Q: A certain metal M forms a soluble sulfate salt M,SO, Suppose the left half cell of a galvanic cell…
A: Answer a: The electrode are same in both solution at different condition it will form…
Q: Cesium chloride packs in a crystalline lattice (shown). The cesium ion is the darker sphere in the…
A: We have a lattice structure of caesium chloride, with chloride ions at the eight corners and caesium…
Q: A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains…
A: Given : Mass of water = 4.70 Kg = 4700 g…
Q: 1. The dissolution of potassium nitrate follows the below reaction: KNO3(s) K*(aq) + NO3(aq) Do you…
A: Reaction for dissolution of potassium nitrate: KNO3(s) →K+ (aq) + NO3-(aq) Reactant = solid Product…
Q: The complex [NiC14]2 is paramagnetic with two unpaired electrons whereas the compound [Ni(CN)4] is…
A: A diamagnetic substance - in which all the electrons in the substance are coupled. whereas when the…
Q: IONIC CRYSTALS ARE ALWAYS... (Discuss the microscopic arrangement of the particles in these…
A: We have ionic crystals and molecular crystals, we will determine which of these are always…
Q: 9. For the following skeletal structures, add the appropriate bonds and nonbonding electrons so each…
A: In these given skeletal structures, there are total three types of atoms are present carbon, oxygen,…
Q: Decide which intermolecular forces act between the molecules of each compound in the table below.…
A: A question based on hydrogen bonding. 4 compounds are given that are to be distinguished based on…
Q: A chemist hoped to make an ethyl ester using diazoethane. At the end of the reaction, only the…
A:
Q: Calculate the solubility at 25 °C of CuBr in pure water and in 0.067 M Nal. You'll probably find…
A:
Q: The molar conductivity of NH4Cl at infinite dilution is 149. 7 02-1 cm² mol-¹ and the ionic…
A: Λ°m (NH4Cl)=149.7 Ω-1cm2mol-1Λ°(OH-)=198.0 Ω-1cm2mol-1Λ°(Cl-)=76.3 Ω-1cm2mol-1
Q: find the mass of 1000 molecules of H2
A: 1 mole of any substance contains 6.022 x 1023 molecules (Avogadro's number). Mass of 'n' number of…
Q: Which ONE is equal to the work done by an orally dissolvable tablet which, when placed in water,…
A: To solve this problem, we need to use the equation for the work done by a gas expanding against a…
Q: Draw the structure(s) of the major organic product(s) of the following reaction. NaOEt / EtOH
A:
Q: In an experiment, a student took a 12.2 g sample of table sale and chemically separated the chlorine…
A: To find the percent composition of each element in table salt (NaCl), we need to determine the mass…
Q: Which of the following BEST identifies the polypeptide sequence in silk fibroin shown below? fN ● OH…
A:
Q: A chemist measures the energy change AH during the following reaction: CH₂(g) +20₂(g) → CO₂(g) +…
A: Recall the given reaction, CH4 g + 2 O2 g → CO2 g + 2 H2O l…
Q: Use this information, and any other information you need from the ALEKS Data resource, to answer the…
A: Mass of water in bomb calorimeter=1200 gMass of ethylene=4.290 gMolar mass of ethylene=25…
Q: What will be the product of the reaction Shown below? 175 €
A: Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: Explain the concept of hybridization and its significance in molecular structure and bonding.
A: Hybridization is a concept in chemistry that describes the mixing of atomic orbitals to form new…
Q: Consider the acid-base nature of barium perchlorate, Ba(CIO4)2, when it is dissolved in water. (1)…
A: In chemistry, acid-base is the most crucial topic, acid is the substance that forms hydrogen ions H+…
Q: What is the percentage composition of oxygen in iron(II) oxide pentahydrate FeO.5H₂O?
A: Compound -> FeO.5H2O First of all we calculate molar mass (M)of compound Percentage…
Q: Write out the mechanism (intermediate/transition state) for this reaction; Br CH3 NaOCH₂ E₂
A:
Q: 5) An aldehyde compound given below undergoes an "aldol reaction" by itself. What is the "final"…
A:
Q: If a scientist weighs out 460.69 grams of ethanol, how many moles of carbon dioxide will be…
A: We have to check if the given equation is balanced and find moles of carbon dioxide produced from…
Q: Please explain the differences between Absolute Humidity and Specific Humidity when it comes to the…
A: When discussing the presence or potential presence of water vapor in the Earth's atmosphere, the…
Q: Draw the Lewis structure for the phosphorus tribromide (PBr3) molecule. ·C U Ċ 2 X ! [1-
A: We know in Lewis Structure electrons are generally represented by dot . Here every atoms tries to…
Q: The pressure in Denver, Colorado averages about 632 mm Hg . How many atmospheres is this?
A: Pressure in Denver, Colorado = 632 mmHg How many atmosphere is this? Pressure = ? atm Note: 760 mmHg…
Q: 7) An organic acid (A) under goes ionization in water according to the equation RCODH RCOD +H* The…
A:
Q: (a) A sample consisting of 1.00 mol of perfect gas atoms, for which Cv,m = R, initially at p₁ = 1.00…
A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: 6. You are working in the laboratory, preparing sodium chloride. Consider the following results for…
A: We have find out the answer.
Q: 12. If the volume of a substance is 98.2 cc and it has a mass 56 12 grams, it should have a density…
A: Volume (V) = 98.2 cc Mass = 56.12 gram
Q: salt metal CRYSTALLINE diamond G Abri AMORPHOUS foam O ober glass 4 Do you think there is a single…
A: We have to discuss whether there is a single criteria to to differentiate between crystalline and…
Q: How does the concept of aromaticity manifest in non-planar molecules, and how does it impact their…
A: The concept of aromaticity in chemistry refers to a special type of stability exhibited by certain…
Q: Convert 400. atm in kPa. Round answer to 3 significant
A: The conversion formulae are: 1 atm = 1.01325 bar 1 bar = 105 Pa 1 KPa = 103 Pa 1 bar = 102 KPa…
Q: 10. a) Provide the structures of reagent 1 and 2 that are required to generate the following alkyne:…
A: Here our Target compound is an internal alkyne . It can be obtained with the help of base followed…
Q: What is the pH of a solution with a hydrogen ion concentration of 3.7 × 10-³ mol/L? 3.43 None of the…
A:
Q: Draw the major product of this reaction. Ignore inorganic byproducts. 1. excess Br2, NaOH 2.…
A: The question is based on organic reactions. we need to identify the product formed and explain…
Q: ted P (mm Hg) 700 600 500 400 Sea level 01 Guadalajara, Mexico Use the References to access…
A: Given, The atmospheric pressure in Guatemala City(elevation 1530 meters) = 0.804 atm.
Q: What resolution is needed to separate the ions C2H4 + and CH2N+ with masses of 28.0313 and 28.0187…
A: Resolution- It is the full width at half maxima of a peak To find, Resolution Mass difference…
Q: Provide the name of the covalent compound 103:
A: Covalent compound : A covalent compound is formed by the combination of two or more non-metals via…
Q: For each of the compounds A and B do the following: (i) Sketch the NMR spectrum that you would…
A: We will first determine the number of unique protons present in different environments. and after…
Q: A 6.00 L tank at 10.1 °C is filled with 7.51 g of boron trifluoride gas and 2.21 g of carbon dioxide…
A: It is based on the concept of mole fraction and Dalton's law of partial pressure Here we are…
Q: Draw the major product of this reaction. Ignore inorgani byproducts. 1. excess Br2, NaOH 2.…
A: Ketones react with excess of bromine under basic condition to produce polybromoketone where are the…
Q: What mass of cesium bromide must be added to 0.500 L of water d=1.00 g to produce a 0.650 m…
A: We have to find the mass of cesium bromide that has to be added to 500 mL of water to form 0.650…
Q: What are the fundamental factors that determine the rate of a chemical reaction and how do they…
A: Chemical reaction rates are influenced by various key factors that determine the speed at which…
Q: Draw the major product of this aldol addition reaction. Ignore inorganic byproducts. 1. LDA 2.…
A: The question is based on organic reactions. we need to identify the product formed and explain…
Q: Determine the product formed when each compound is treated with Br2 and FeBr3. Drag the atom labels…
A: We have find out the answer.
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
- 3.) In the assay of NaHCO3, 3.0g of the solid is dissolved in 25mL water. What is the normality? How many mL of 1N H2SO4 will be required to neutralize this solution? From this volume of acid, compute the percent purity of NaHCO3.The ascorbic acid, C,H;Os (176.124 g/mmol) content of a bottle of peach juice containing 2.50 L was determined by titration with a standard solution of potassium iodate, KIO3. The KIO; solution was prepared by dissolving 100.4 mg primary standard grade KIO; (214.001 mg/mmol) to a final volume of 250.0 mL. To a 200.00-mL aliquot of the sample, 10 mL of KI, 10 mL of HCl and 5 mL of starch solution were added and subsequently titrated, requiring 18.19 mL of the KIO; titrant. The relevant reactions are given below: KIO; + 5KI + 6H* → 3l2 + 6K* + 3H;0 CH;O, + l2→ CH,O, + 21- + 2H* a. How many millimoles of ascorbic acid is in the titrated sample? b. What is the mass of ascorbic acid per bottle of the peach juice?Sample containing arsenic weighing 0.800 are titrated with a standard iodine soluton. what should be the normality of the iodine in order that each ml of titrant represents 1/2% As2O3 in the sample (Answer: 0.0809 N show full solution please)
- E 50 um? of 6-2 moldni3 Solution Na, (o3 was dileted usith distilled weeter to obtain f 250 cm3 Sorlution, what world be the Con ien trei blum f Sbuution? the resulbing ofThe table below describes a procedure in preparing standard solutions of a protein sample with different concentrations. (A) Determine the concentrations of each tube if the starting concentration of the protein is 500 mg mL (B) Determine the equation of the line if the concentration (x-axis) was plotted vs the absorbance (y-axis). (C) What is the concentration, in mg mL, of the diluted unknown protein sample if the absorbance at 595 nm is 0.333? L-1. Tube Volume of protein, Volume of water, Final concentration, Absorbance #3 mL mL (at 595 nm) mg mL-1 0.00 5.00 0.113 12 0.70 4.30 0.184 3 1.40 3.60 0.251 14 2.10 2.90 0.329 15 2.80 2.20 0.385 3.50 1.50 0.454 17 4.20 0.80 0.503 8 5.00 0.00 0.577 Suppose that the unknown protein (diluted) sample in 4.C was diluted from a protein stock solution. Determine the concentration of the original unknown protein stock solution if 2.00 mL of the protein solution was mixed with 8.00 mL of water to create the unknown protein (diluted) sample in 4.C.A1.223 g sample containing arsenic (As) was converted to H3AS0, by suitable treatment. 40.00 ml. of 0.07891 M AGNO3 was then added to the acid to precipitate arsenic quantitatively as AgAs01. The excess AgNO3was back-titrated with 11.27 ml. of 0.1000 M KSCN ; the Reacti on was Cal culate the percent of As,03 in the sample. 1. O5.47 2. O2.23 3. O11.15 4. O66.92 5. O33.45
- UEid- base tit ration the Consentrat ion of ammonia Solution excess HCL was titrated ith o.07om Na, cO3 Solutian. The volume of Na, Coz Solution reguired was 15.50 ml using the following eguations: 2HCLem> + Na, COgcaps CO2 Cays + HzO1) t NaCL Calculate the concentration (molarity and ppm) of ammonia in the Original Solution.(MM of NHzis 17.031.9/4) 10.0 was by of o.10OMI HCE to ThenA 0.5131-g sample that contains KBr (MM: 119.0023) is dissolved in 50 mL of distilled water. Titrating with 0.04614 M AgNO3 requires 25.13 mL to reach the Mohr end point. A blank titration requires 0.65 mL to reach the same end point. Report the %w/w KBr in the sample.The ethyl acetate concentration in an alcoholic solution was determined by diluting a 10.00-mL sample to 100.00 mL. A 19.00-mL portion of the diluted solution was refluxed with 40.00 mL of 0.04601 M KOH: CH3 СОО С2H; + ОН — СH3 COO + C2H; ОН After cooling, the excess OH was back-titrated with 3.02 mL of 0.05056 M H2 SO4. Calculate the amount of ethyl acetate (88.11 g/mol) in the original sample in grams. Amount of ethyl acetate =
- o/index.html?deploymentld%=55750828934189288909969212&eiSBN=9781305657571&snapshotld%32199898&id%3... ☆ IDTAP Q Search this cou Use the References to access important values if needed for this question. The concentration of H3ASO3 in a solution is determined by titration with a 0.1945 M Ce+ solution. The balanced net ionic equation for the reaction is: 2Ce*(aq) + H3ASO3(aq) + 5H2O(1) 2Ce*(aq) + H3ASO4(aq) + 2H3O*(aq) (a) If 19.83 mL of the 0.1945 M Ce** solution are needed to react completely with 30.00 mL of the H3ASO3 solution, what is the concentration of the H3ASO3 solution? M (b) Which of the two solutions was in the buret during the titration? (c) Suppose at the end of the titration, the solution containing the Ce³* ion is transferred to a volumetric flask and diluted to 300. mL. What is the concentration of Ce3+In the diluted solution? Submit Answer 5 question attempts remainingAn alkaline sample of sodium compounds weighing 1.196 g was dissolved in water, cooled to 15°C, treated with 2 drops of Pp indicator and titrated with 1.058 N H2SO4 requiring 6.8 ml to render the solution colorless. Upon adding 2 drops of MO and continuing the titration, 16.5 ml more of the acid were needed to complete the analysis. What is the quantitative composition of the sample? MW: NaOH = 40.0, Na2CO3 = 106.0, NaHCO3 = 84.01Q1) A sada- Lime Sample is 90% NaoH and 10% CaO• If 3gm is dissolved in 250 ml, what is the tutal normadity of the Selution as abase ? How many milliliters of O.57N H2 S@4 would be requiredd to titrate i00 me of the Solution ? Ans.s ( 0.309 N, 60.59 ml) Q12) How much water that required add to 200 ml HNO, ( densly = 1.285 gm/ml) Contains 46 wt% acid to Convert lo wt% acid solution? Ars. : 919.6 ml