Chemistry Questions and Answers June 17, 2020

Rank the following 1.34 M solutions from 1 (most acidic) to 8 (most basic). Which solution would be numbered 3 O (a) C55NHBr O (b) NH3 O (c) KNO3 O (d) KCN O (e) CH3N H3CI O (f) NaClO (g) CH3CH2NH, O (h) HF

1- The beta emission from uranium -237 results in ............ and ........ The products of the following reaction Positron emission from silicon-26 are .......... and ..........

What is the following? and does it contain an alcohol, ketone, double bond, benzene ring or amine.

The following I Select) contains a Select) 100 This uetonOKMinhThe spectr oyrig webookNtgo This a NOT oc u Detbuion of ts pecto or othing oher than whea oo e 000 VENUEl 1000

The topic must be involved with either Reaction Kinetics, Equilibrium, Solubility Equilibrium, Acids and Bases. I was assigned a passion project regarding a specific chemistry-related topic. I wanted to do the decomposition of a human corpse. How would I be able to relate it with either of the aforementioned topics? Also, what are other good

The unit of part per billions O moll O ppm O ppb

The unit of part per billions O moll O ppm O ppb

Electrons generated by the Compton effect inside a carbon block (graphite) have an initial kinetic energy of 20MEV. Using the table below, the approximate range of electrons in carbon (in cm), the total energy deposited in the medium (in MeV) and the average stopping power (in MeVcm) are, respectively Note carbon density is 2250kgm and factor

7. Select T if the statement is true and F if the statement is false )2 ( 15 dzz (, sine cose cos) is an eigenfunction of l, T. 68. Question 2 (

Consider the following reaction 2 5 Ca(OH)2 (aq) 6 OH Ca,OH(PO)3 (3) If a wastewater treatment uses daily 15000 L of a Ca(OH), solution of concentration 10.50 g L (as Ca) to treat a pH adjusted wastewater containing 4.6 mg L phosphorus, what is the mass of solid sludge produced if this plant treats 3 HPO, (aq) 3 H,0 (aq) 15000 m of water per

Given that an aqueotus solution of ghicose (CgH1206) has a density of 1.0171 kgl, what is the motar concentration of the sohution if ita molality is 02600

The Table below presents to you five patients you had seen in the OPO. Please provide your diagnosis based on the laboratory results and give reasons for them. PARAMETER PATIENT PATENT PATIENT PATIENT PATIENT MEANGE TRANSFERIN 213 19.94 1714 45.71 20.204 25.2045.40 (umal IRON 20.5 60 19.8 17.9 17.0 5.83 34.90 (umolL) FERRITIN 434T 724 8.2 11324

Heat of vaporization of H2O is 40.7 kJ/mol. At what temp. (in K) is the vapor pressure 112 Torr?

Drug Claratin Please Do color it in. Step 4: VSEPR Molecular Geometry Predictions (4) Directions: 1) Show the expanded structure (draw all the bonds and lone pairs) of your drug on a separate page. 2) Determine the molecular geometry of each central atom. 3) Color each central atom based on its molecular geometry and include a key for your colors.

6. Identify the structure of the unknown compound using the following NMR, Mass Spectrometry and IR spectra. (5 points) (CSH120) Unknown 7 H NMR Spectrum 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 ppm Unknown 7 13C NMR Spectrum 150 140 130 120 110 100 06 80 70 60 50 40 30 20 10 ppm 3.440 3.434 74.63 1.436 1.434 1.415 LEE1 SIE 0 29.63 16 6 ,Unknown 7 13C DEPT

A 400 mL sample of 0.4375 M ethyl amine CH5NH (K 4.5m104) reacted with 2.50 L of HCN ((K 6.2m1010) at 298 K and 1.2 atm. Assuming the volume of the solution remains constant. calculate concentrations of all species present and pH at equilibrium.

Photobromination of cinnamic acito dibromocinnamic acid was carried out in blue light of wavelength 440 nm at 35C using light intensity of 1.5x103 Jsecond. An exposure of 20 minutes produced a decrease of 0.075 millimoles of bromine. The solution absorbed 80 of the light passing through it.Calculate the quantum yield of the reaction.

An Organic Compound (A) on treatment with CHC13NaOH gives two products (B) and (C). On Zn distillation, both (B) and (C) give the same product (D). (B) and (C) on oxidation give (E) and (F) which are isomeric having molecular formula C7H603. On heating with soda lime, (E) and (F) give back (A). Also, Zn distillation of (A) gives an aromatic

When Zinc chloride (ZnCl,) reacts with NH, solution, a white crystalline compound Zn(NH,), C, is produced. A student used the procedure in this module to determine the mass percent of NH, in Zn(NH,),CI, The student added 25.00 mL of 0.2500 M HCI solution to an aqueous solution containing 0.3724 g of Zn(NH,),Cl, The excess HCI required 18.80 mL of

24,000 lbhr of 35API distillate is cooled from 400 to 300F by 50,000 lbhr of 34API erude oil heated from an inlet temperature of 250F. Pressure drops of 10 psi are allowable, and a dirt factor of 0.006 is required. Using 20ft hairpins of 4 by 3in. IPS (a) how many are required, (b) how shall they be arranged, and (c) what is the final fouling

Which reagent would be used in the following reaction (just look at functional group to answer the question) OM O Oso, .CH,SCH, (could use Zn and HOAC) O HH,0 O CH,MgBr, H,O O Hg (OAc) 2, NaBH4 O BH3, THE H,O, OH

What is structure for a compound for given NMR sample if molecular formula is ?C9H7ON?? Explain briefly.

L 13 12 11 10 9 8 7 6 4 2 1 ppm 13.18 12.153 9.937 8.293 8.287 8.101 12.91 8.086 7.522 14.14 13.67 7.507 7.279 7.277 14.11 29.78 7.265 7.263 7.249 L7.247 L7.235 7.233 7.219 7.205 L7.203 3.451 3.437 3.423 0.86 3.348 3. 2.526 2.523 2.509 2.505 2.502 0.49 0.86 1.059 0000

b. What is the experimental integration ratio in the H-NMR data that you obtained? Is this ratio consistent with the expected integration ratio of the pure product? c. According to the H-NMR data, is the sample you prepared pure? d. Label the peak in the H-NMR spectrum a, b, c etc. starting with the most uplift peak. Draw the structure of

8.18 3.00 1.88 p.96 0.51 PPM 14 12 10 USER DATE 072721 (1605) OF1 368.3 NA 1 PTS1 8192 FI 60.010 EX cleft HIVGppg SWI 1000 PW 8.2 us PD 3.0 sec LB 0.0 Nuts temp 9.834 E6EL 5.241 3.943 1.642

Draw the triacylglycerol that forms when glycerol combines with palmitoleic acid, linolenic acid, and EPA. (Refer to the table of common fatty acids found at the end of this worksheet.) Would this triacylglycerol be classified as a fat or an oil ,Draw the structure of the polymer TyrProArgValSer. What type of compound is this polymer What is the

Chemistry

HomdinalS y Tame lft ot Quen A factory has a unique product based on the following equation 2A R, ke 12 Lmormin (2nd order). What is the amount of product of R (mol) per 10 hr a day and 90 of A entering the reactor is converted To charge the reactor and to heat it to reaction temperature requires 0.92 hr, to discharge the reactor, and to prepare

Case A T1000 U 18 ms confond

An oral antiarrythmic drug has the following parameters. . Minimum therapeutic plasma concentration 0.3 mgL 60 mg, 120mg tablets available EM (Extensive metabolizer) PM (poor metabolizer) F (ffp only fabsfgut 1) CL (total) (Lh) V (L) CLH (Lh) CLR (Lh) feu (fr) T12 (h) 0.75 0.9 50 30 500 500 35 8 1) 2) 5) 3) 4) 6) 7) E 0.25 fb (fu) 0.5 0.5

complete each F Following Renchioms n Renchuns 18 a. 8. 7 in 15 115 . tT 205 TR t, 2

The visible absorption spectrum of a solution of the complex is Administrator Analyst Date Tuesday, 9 August 2011 942 AM 90820119 450 500 600 400 650 700 Note that there is only one absorption peak. The UVVisible spectrophotometer was set to the maximum absorption wavelength for the complex (526 nm). The absorbance was measured at this wavelength

What is the limiting reactant How can you tell based on your observations Using the table provided in appendix H, look up the solubility values for the two products NaCl Ca3(PO4)2 Based on the solubility numbers, what would the solid product be ,Concentration CaCla 0,250 vol. 4.98 mL Cacl2 Vol. 5.00mL Na Poy 3 CaCl, 2Na3PO, 6 NaCI Cas(PO)2

1. What is your unknown number Question 2 (1 point) What are your values of absorbance (6) Question 3 (1 point) What is the equation for the linear fit of your calibration curve Be sure to include R,Question 4 (1 point) What is the molar concentration of your unknown solution Question 5 (0.5 points) What factors are included in determining the

Use the following data produced by an atomic absorption spectrometer. The least squares best fit to the line is y 5.34 X 103 x 1.86 X 103 ppm Pb absorbance standard deviation ,0.002 ,0.001 0.00 0.001 0.003 0.054 10.00 0.110 20.00 40.00 The calibration sensitivity of the spectrometer is

Henry's Law and its corresponding constant kH have been expressed in a variety of different, yet effectively equivalent, fashions. A Henry's law constant for CH4 in benzene at 25C is: kH(CH4,benzene) = 2.310-2 M/atm 55 mL of benzene is kept under CH4 gas at a pressure of 1.19 atm and 25C. Calculate the equilibrium concentration of CH4 dissolved in

Complete the following reactions and find the products.

Glucuronidation Hydroxylation at cyclic carbon Oridation Hydrolysis Oxidation Aromatic Oxidation omega Hydroxylation hydroxylation Glucuronidation HCN Oxidation Ndealkylation Oxidation at alcohol

1. Mention and illustrate 7 types of copolymers. 2. Draw the structure of the idealized modulustemperature for thermoplastic and thermosets curve and mention all the transitions. 3 3. Differentiate between the initiation, propagation and termination steps of a chain reaction polymerization. 2 4. Show a laboratory preparation of polycarbonate and

6. Give a reaction for the synthesis of Polysulfides. 1 7. Differentiate between hydrogen, ionic and covalent bonding. Hint. Draw and motivate 4 8. Give 3 differences between van der Waal and dipole forces Hint. Draw and motivate 3 9. Give 5 differences between HDPE, LDPE and LLDPE 5

For the structures shown below, state the number of pi electrons present in the molecule. H H H. H. .. H H H N Number of pi electrons Number of pi electrons Is the molecule aromatic according to the Huckel criteria If the molecule were planar, would it be antiaromatic

1. An 84 g mixture of pearl pigment has 63 wt pigment dispersed in vehicle. How much additional vehicle is needed to lower the concentration of the pigment to exactly 25 wt 2. How do you make 526 mL of 3.50 M hydrochloric acid solution from 10.2 M c. HCI

Propose a synthesis of B starting with A. Using 2 different common reagents A. B.

Elaborale concept of protern tongeting wrth particulai emphasrs drsodvantages ny. on its ad van tag es and

.S. ,Starting from any of the monomers given above (A, B, C or D), propose a synthesis of a responsive polymer capable of sensing Nat ions, detail the proposed response and how this could be observed experimentally. Ph Ph B C D

Calculate the molar enthalpy of solution for each solute. Remember AHsol is positive for endothermic changes and negative for exothermic changes. NH,NO, NaOH

(b) An oilwater cream contains 12 (ww) of emulsifier and has an oily phase with a required HLB of 12. The surfactants used in the cream are sorbitan tristearate (Span 65) and polyoxyethylene sorbitan monopalmitate (Tween 40). If you prepare 250 g of the ow cream, estimate the mass of each surfactant that is required to prepare the cream. HLB (Span

Propose a molecular formula and structure for each mass spectrum

100 7 80 60 40 20 20 40 60 80 100 120 140 160 180 200 mz Relative Intensity

Draw the complete molecular orbital diagram for Dichlorobis(ethylenediamine)cobalt(III), considering only the -bonding.

Write your own fairytale similar to another fairytale.

Determine the structure of C 9 H 2 O by NMR.

17. Shown below is the synthesis of the dipeptide GlyVal. Identify the reagents in their correct order for the steps involved. Put a letter in each box. (9pts) HO H2N BocHN HO CO2CH3 NH2 H N. .N. BocHN H2N O2 CO2CH3 A 1. PHNCS 2. TFA E 1. TFA 2. H3O 1. 20Et3N C 1. TFA 2. NAOH D DCC 18. Hydrolysis of a peptide with trypsin and chymotrypsin gives

8.85 The oxidation of nitrogen and automobiles occurs by the reaction N(g) O2(g) 2 NO(g) AH 180.6 kJ (a) How much heat is absorbed in the formation of 1.55 mol NO (b) How much heat is absorbed in the oxidation of 5.45 L of nitrogen measured at 1.00 atm and 273 K (c) When the Oxidation of N2 to NO was completed in a bomb calorimeter, the heat

Given a reaction that occurs through the collision of A and B. Calculate the rate law, and show when it behaves as a diffusioncontrolled reaction. ( k, A B lk P A B k, AB

How many of the following reactions will work Br2 HO. HO, Base Br ii OH SOCI2 .CI i CHOH CH3 iv HOCH3 CH3 OH NAOCH3 HOCH3 CH3 HO. H,SO4, H20

Employ the Indium-111 chart below hours PCF DF Indium-111 1 1.010 0.99 2 1.021 0.98 3 1.031 0.97 4 1.042 0.960 5 1.053 0.950 6 1.063 0.941 7 1.074 0.931 8 1.084 0.922 9 1.096 0.912 10 1.107 0.903 11 1.118 0.894 12 1.130 0.885 18 1.202 0.832 24 1.278 0.783 30 1.358 0.736 36 1.444 0.693 42 1.535 0.651 48 1.632 0.613 A technologist must administer 1

How do I find the K c & Delta G? The experiment is about the Empirical Formula and Free Energy of Formation of Iron(III) Salicylate Complex

Solution D1 D2 D3 D4 figure 2 plot of equation 6 0.0006 0.0005 0.0004 0.0003 0.0002 0.0001 0 a kc AG 0 intercept slopegradient 0.1 0.2 Fe3ml 0.3 0.4 fe3mol L1 A 1 3.99901E05 2 7.99802E05 5 0.00019995 10 0.000399901 y 0.0007x 5E05 R 0.9947 5.39028E05 0.00068022 1428.571429 0.5 0.6 0.7 A12 0.8 fe3A12 0.0002 0.04 0.2 0.1 0.316228 0.000253 0.25

The photoelectron ejected from N, with a radiation of wavelength 58.43 nm has kinetic energy of 5.63 eV. Calculate the jonization energy.

Calculate the ideal solubility of anthracene in benzene at 20C . given that the enthalpy of fusion of anthracene is 28.8 kJmol and its melting point is 217C

2.34 a. An incident beam of 2.0MeV gammas has an intensity of 1,200 photonss cm2. What is its intensity after it passes through 8.0 cm of 40 porosity steel wool Solid steel with a density of 7.85 gcm3 has a mass absorption coefficient of 0.044 cm2g for 2.0MeV gammas. (Hint air contribution is negligible.) b. If the steel wool is saturated with

Refer to the diagram of an electrolytic cell is show below. Beaker 1 contains copper (I1) sulphate solution. Beaker 2 contains 3.0 M copper (11) chloride solution. Beaker 3 contains copper (11) nitrate solution and Beaker 4 contains 1.0 M copper (I1) chloride solution. (a) Write the half equation for the reaction at the following electrodes.

(a) Draw the orbital structure of diphenylcarbene (CPh2) (b) Draw the orbital structure of pyridyne and in 12 sentences explain why it is highly electrophilic. (c) Draw the orbital structure of the phenyl radical, and in 12 sentences explain why it is unstabilised.

Designing Synthetic Schemes using Reactions with Carboxylic Acids and Acid Derivatives Complete the synthesis below using only benzene, toluene, propanoic acid, carbon dioxide and copper cyanide as your sources of carbon atoms (all carbon atoms in the products must come from these reactants). You can use any other reagents that do not incorporate

The ionic polymerization of styrene (ST) is carried out in tetrahydrofuran solutions using n-butyl lithium. The following conditions are used: [ST] = 1 M, [n-butyl lithium] = 0.005 M. Calculate the degree of polymerization at 50% monomer conversion and at full monomer conversion using the conditions described in 1. Styrene contains some trace of

a) Write mechanism for the characteristic fragments of aliphatic and aromatic carboxylic acids 2 b) Draw important and characteristic fragments of the following HO, HO ,c) Write mechanism for the fragments (below structure) in the given structure 3 mz 58, M58 M76,

a) Obtain the matrics of 1,2,3,4 and 6 fold rational symmetries and inversion symmetry. b) Derive the general position for the space group C2ie and C21ve and show that they refer to the same space group differing only in the choice of group.

For each reaction A-H: State the dominant mechanisms CIRCLE any reactions whose rate is independent of the concentration of the nucleophile base. Draw the structures of the major products. structure have to be consistent with your dominant mechanism.? ? ?

A) HSO4

When treated with HBr, which alkene is most likely to undergo a carbocation rearrangement after the electrophilic addition?

. . . D.

EXPLAIN IN DETAIL AND ALSO ATTACH THE RELEVENT FIGURES

GCNN 1. Z 2. In Ring 3. Implicit Valence NH2 (1) (2) (3) (5) (6) 4. Number of Hydrogens 5. Aromaticity 6. Charge Pass 1 Pass 2 Pass 3 Graph Updated Hidden Features Weights X X X 1 X ReLU X RELU X 8 ReLU Concatenate Feedforward network RNN Output Hidden Input Unfold Predicted Product COclcncc (Br)cl C 0. Ot1 Ot1 Ht1 Ot It1 H Ht1 . It Brel ence

What is the reaction mechanism?

O Hint There is a 10membered ring involved CH, H,C ,O Hint There is a 10membered ring involved CH, H,C

Provide the curved arrow mechanism for the following reaction.

tetraline OH SH S 3D 200 C N hypoxanthine phosphorous pentasulfide 6mercaptopurine

b) Identify the compound (CH10O2) that gives the following H NMR spectrum. SH 2H 2H triplet triplet 1H 12 16 PPM

Suggest a series of reactions that converts the given starting material to the desired products.

a) b) N 2 x enantiomer CI

The rate constant for the decomposition of hydrogen iodide (HI) at 700C equals 0.00160 M1.s1 2HI(g) H2(g) l2(g) 1 Based on the units of the rate constant, is the reaction first order or second order Explain. 2 Suppose a reaction is started with 0.0552 mol of HI in a volume of 735 cm. How many minutes will the reaction take for the moles of HI to

Replace cach letter (AE) with the suitable reagents in the following multistep synthetic scheme OH Br OH B D ,Based on your knowledge of organic chemistry, predict which direction the following acidbase reaction will proceed. Justify your answers without using the pka values BIMGOH which wil decopmse to Mgo and HBr MgBr b) (CH,COH NANH,

I) A 0.3M EDTA solution buffered at pH 12, (a4 0.98 ). a) Calculate Y b) Calculate conditional formation constant of EDTA at this pH if Kagy is 2.1x10 c) Calculate pAg if 40mL of 0.15M Ag2 solution was added to 20ml of 0.3M EDTA (7.5 points) II) A 4.2 x 104 M solution of an indicator compound has an absorbance of 0.65 when measured in a 1,5cm cell

A students laboratory notebook shows the following graphical entry, Obviously, the student has neglected to label which of the two superimposed curves belongs to the ketone. 0 60 Et 30 Me A, nm 230 235 Ph 30 tBu 60 a) (3 points) By using (drawing) the octant rule (with signs of octants and nodes), determine the observed Cotton effect for the

Using the following pressurecomposition diagram of a mixture of X and Y volatile liquids. The highest percent of gaseous Y in first bubble mixture is at pressure (atm) tcomtant P 25 20 15 10 06 mele XO A)0.3 B) 2.5 C) 1.0 D) 2.0 E) 1.5 OA C 3.

Write the chemical formula of the following metal complexes or complex ions formula name bis(ethylenediamine)molybdenum(III) amminetribromoplatinum(IV) carbonylpentacyanoaurate(III)

Dry the filter paper AgCl(s) and weigh it. The following data is obtained a. Mass of XCl, 02.455 g b. Mass of filter paper watch glass 22.6541 g c. Mass of filter paper watch glass solid AgCl 23.3934 g d. Mass of AgCI (s) Calculations Balance the above chemical equations Perform the following calculations g of AgCl(s) AgCl moles of AgCl

A newly discovered ionic compound has the formula NzT. The molecular weight of Nz is 43 gmol and the molecular weight of Tis 76 gmol. If a 688 ml sample of water contains 0.06 g of NzT, what is the concentration of the solution in ppm You must show your work on your answer sheet to receive credit. Enter your answer rounded to the whole number and

The following tabie lists molecular weight data for a polypropylene material. Molecular Weight Range (gmol) Wi 8,000 16,000 0.05 0.02 16,000 24,000 0.14 0.10 24.000 32.000 0.23 0.21 32,000 40,000 0.32 0.30 40,000 48,000 0.18 0.27 48,000 56,000 0,08 0.10 Click here to access Table 4,3. Atomic weights for several elements are included in the

1. Consider a socalled open system, i.e., a volume of 1L demineralized water is out into the open air at 25C. Na,C204 (sodium oxalate, 134g mol1) can be dissolved in the given volume before precipitation occurs this happens at 34.1 g L1. (a) What is the solubility product, Ksp, of the sodium oxalate (1pt) (b) If no oxalate is added, the

Will ring closure reaction of (2E,4Z,6Z,8E)-decatetraene under thermal condition?

1.Outline the steps involved in the separation of plant extract using thin layer chromatography. 2. Describe how you would separate each of the following mixtures into pure components: a. A mixture of ethanol and water. b. A mixture of vegetable oil and water c. A Mixture red and blue food

Which functional group test gives positive result in following molecule N HO Select one a. 2,4Dinitrophenylhydrazone test b. Ferric Chloride Test O C. Hydroxamic Acid Test Od. Tollens Test e. BordwellWellman Test IZ

Task 5. Rust is a common name for a large number of different types of iron oxide and hydroxide. Pure iron has a strong affinity for reacting with oxygen, but exactly which corrosion product is formed depends on temperature, pH and moisture access. The following equations can be included in corrosion of iron (a) Fe(OH)3(s) FeO(OH)(s) HO() (b)

Calculate consentration of unknown copper(II) sulfate solution.

Oxidation halfreaction Metals Reduction Overall halfreaction reaction Standard cell potential (V) Zinc and copper Zn Zn 2e Cu 2e Cu Zn(s) Cu(aq) Znt(ag) Cu(s) 1.10 Zinc and silver Zn Zn2e Ag e Ag Zn(s) 2Ag(aq) Zn(aq) 2Ag(s) 1.56 Zinc and lead Zn Zn 2e Pb 2ePb Zn(s) Pb(aq) Znt(aq) Pb(s) 0.63 Zinc and nickel Zn Zn 2e Ni 2e NI Zn(s)

Which of the choices is a precursor for the synthesis of prostaglandins O A) cholesterol B) biodiesel O C) linoleic acid D) linolenic acid O E) arachidonic acid Question 7 Citral is best classified as a

In an experiment with the lanthanum electrode, the current densities given the application of several different overvoltages were measured. With n 133 and 276 mV obtained for example j 27,8 and 445 mA cm a) Calculate the product formation speed per unit electrode area (mol cm s) for the first mentioned overvoltage b) estimate from data and

In a continuous countercurrent extractor, a feed of 1425 kgh of crushed oil seeds with a composition of 28.07 wt oil, 1.75 wt benzene and 70.175 wt inert material is extracted with solvent mixture contains 10kg of oil and 655 kg of benzene. The exhausted solids are to contain 60kg of oil. Using the Janecke plot to find the number of ideal steps

To analyze this data you should first identify which peak corresponds to which compound. Then calculate the percentage of each compound present for each reaction.

File DMSDCHEMIIDATAI20080930KBBU1B.D SHS Operator Acquired 19 Mar 2013 1124 using AcgMethod BUTENESFID M Instrument Chemstati Sampie Name Kristin 1bromobutane BUOH Misc Info 03192013 Vial Number 1 Buo Br 4 Resporse Signal KABU18 DAIDIB CH 500000 4500col 400000 35000 300000 250c00 200000 150000 100000 Time 1.31 1.32 1.33 1.34 135 136 137 138

a hanmonic oscillafor model show that the a diabomie Vsing frequency of a phoon absorbed by modecule is egual to that of its vibrabion . 2. How many linear and non linear moleeule . modes of wi bration arre postible for please do both, I will upvote.

You are provided with isopropanol (A) and 2-butanol (B), carbon disulfide, KOH. Devise a procedure to prepare single source precursor of Zn(II), Ag(I) and Bi(III). Write down stepwise procedure and safety measures. Also write down complete balanced equation for formation of ligand and metal complex in each case. Show with the help of diagrams all

Given the following equations HBr(aq.) AHO 120.9 kJmol If the Hag Brag conventional standard enthalpy of formation of sodium ion ( AH Na) 240.1 kJmol Calculate the enthalpy of the following process NaBr(aq.) Naaq. Br aq AH MAJOR TEAM kJmol a. 119 b. 119 C. 360 Od.420 e. 360

(1) A solution containing 7mmol Fe2 is titrated by a standard solution of ceric sulfate Ce(SO4)2, the final volume is 350 ml. What weight of ferrous ions remains un oxidized at the equilibrium point. (2) The e.m.f of the cell Pt H(1 atm), HA(0.15M) KCI (2M), HgCl Hg is 0.72 volt. Compute the concentration of H ion in the HA solution and from this

In the starved state, the liver synthesizes ketone bodies which are utilized as fuel molecules in the peripheral tissues. Ketone bodies enter the cells of the brain via the monocarboxylate transporters. In the mitochondria of neurons, bhydroxybutyrate dehydrogenase catalyzes the oxidation of b hydroxybutyrate to acetoacetate as shown in the

A sample of the gas A was introduced into an evacuated flask so that the pressure of pure A would be 0.80 atm at 400 K. However, A broke down into the gases B and C, and the actual pressure in the flask was found to be 1.3 atm. Calculate the Kp for the decomposition reaction A(g) <-> B(g) + C(g) at 400 K. Also calculate K at this

What is the % w/v of an isotonic solution for morphine sulphate (FD 1% = 0.079)? A. 6.58 B. 9.28 C. 5.36 D. 11.4 2 What mass (g) of sodium chloride (FD 1% = 0.576) is required to make 18 mL of the following nose drop? 0.14 g Phenylephrine hydrochloride (FD 1% = 0.185), 0.1 g Sodium metabisulphite (FD 1% = 0.386), 0.5 g Chlorbutol (FD 1% = 0.14), 5

What is the product of the following reaction (2 equivalents) Br CEC C3DC Br Br IV II 1) I 2) 3) II 4) IV

A chemist is studying the following equilibirum, which has the given equilibrium constant at a certain temperature 2 CH, (g) C,H,(g) 3 H, (g) K9, x 107 He fills a reaction vessel at this temperature with 15. atm of methane gas. Use this data to answer the questions in the table below. Can you predict the equilibrium pressure of C,H2, using only

1. Crcle the letter of each correct statement. a. A catalyst increases reaction speeds up by lowering the minimum energy needed for the reaction to occur. b. A catalyst is consumed during the reaction Equilibrium concentrations remain constant after adding a catalyst. d. Two reactant molecules that collide with enough kinetic energy will always

Predict the products for each of the following reactions. Hint 1 Only the terminal alkyne will react with the reagents 110. Hint 2 Treat D (deuterium atom) similar to H (hydrogen atom). For example, Pd D2 has similar role as Pd H2 (cis reduction) Na ND3 is the same as Na NH3 (trans reduction). NaNH 1. NaNH 2, EtBr 10 3 Na, ND, 1. nBuli

Which of the following can move the signal of a proton downfield a. Electron donating groups b. Electron withdrawing groups c. Ring current d. Choices a and c are correct e. Choices b and c are correct

Single point internal standard method uses a relative response factor(s) for the calculation of the amount of analyte in the unknown sample. Suppose that when calculating the RRF for 1butanol, you used the stock 2 propanol concentration for the calculation instead of the diluted amount in the standards but you used the correct 2 propanol