Bad2b0-1be8-11e8-8a14-e5ed980bc25f/session cional Distillation Fractional distillation separates a mixture containing different boiling points. liquids with
Q: Gallium-67 is used medically in tumor-seeking agents. The half-life of gallium-67 is 78.2 hours. If…
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Q: which element has higher electron affinity, Oxygen or Nitrogen? Explain your choice.
A: Electron affinity: When an electron is added to an atom (in the outermost shell of an isolated…
Q: Complete the following table, which lists information about the measured acid dissociation constants…
A: Acid ionization constant (Ka) is a measure of strength of acids Higher is the value of Ka…
Q: Consider the following reaction and its AG AG° = -408.0 kJ/mol Mg(s) + Ni?+(aq) → Mg²+(aq) + Ni(s)…
A: Given-> Mg(s) + Ni2+(aq) ----> Mg2+(aq) + Ni(s) ∆G° = -408.0 KJ/mole = -408000 J/mole (1 KJ =…
Q: 4. CHg CH2-NH- CH2 CHz 5. CH, CH2 CH2 CH2-Ċ-0H
A: Organic compounds can be defined as the compounds containing carbon and hydrogen atoms. For example,…
Q: The formation of Br2 from Br- was done by electrolyzing 1.0 M KBr solution between two Pt…
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Q: Do a 1.0 M CH,COOH solution and a 1.0 M HCI solution have the same pH? Explain.
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Q: Fe+3 + NH2OH+OH → Fe*2 + N2 + H2O
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Q: 1. Give the major product(s) of the following reactions as needed. но PCC. 1. но OH 2. Jones OH OH…
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Q: What is the percent yield of the hydroboration oxidation of 1-octene to form 1-octanol? Original…
A: In Hydroboration oxidation reaction, 3 moles of 1-octene is reacted with BH3 .THF, NaOH and H2O2 to…
Q: Strength powder contains acetaminophen, aspinn and caffeine as the active in nts. Oketa bel a TLC…
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Q: View Policies Current Attempt in Progress Lead(IV) oxide reacts with hydrochloric acid to give…
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Q: Draw the Lewis structures for the following species: (a)CN-; (b) [N3]-; (c) [SCN]-
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Q: Why is the isotope 1Ci radioactive while 35Cl and 37Cl are not? Elements with an number of protons…
A: 36Cl is radioactive and unstable because it has odd no. of protons and neutrons whereas other two…
Q: Assume you titrate 10 mL of an unknown acid with 0.01 M NaOH. Volume (mL) of 0.01 M NaOH usęd to…
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Q: ebra + HBr 3. Chg-C - oH + HO-CHy → CHy- Ö-0-CHy + HOH 吉
A: Hydrogcarbons are compound which are formed from carbon and hydrogen only.
Q: What is the maximum number of double bonds that a nitrogen atom can form?
A: -> Nitrogen valence electron in nitrogen is 2s2,2p3. That is total 5 valence electron. ->it…
Q: fou make a 0.018 M aqueous solution of ammonia (NH3). Remember that ammonia is the conjugate base of…
A: To write mass balance and charge balance equation for a solution of ammonia in water.
Q: What is the percent hydrolysis of a 100.0 mL 0.0520 M NaCN solution if Kw = 1.00x10^-14 and Ka(HCN)…
A: Given, Volume of NaCN in mL = 100.0 mL Molarity of NaCN = C = 0.0520 M Ionization constant of…
Q: Which of the following is not true? O Catalytic converters facilitate both oxidation and reduction…
A: A. true catalytic converters reduce pollutant by redox reactions which means both oxidation and…
Q: Write the formation equation for X-(aq), MX(s), and M+(aq). Assume all atoms used are monoatomic…
A: Here we have to write the formation equation for given atoms assuming they are monoatomic solids in…
Q: A 30.0 g sample of chromium is heated to 100.0 °C in a boiling water bath. The sample is added to a…
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Q: Calculate the cell potential for the galvanic cell in which the given reaction occurs at 25 °C,…
A: [Cr2+] = 0.00190 M [Au3+] = 0.824 M ->Answer may differ slightly because values of standard…
Q: 1.) The reaction will rapidly reach equilibrium, K1, pH1, pH >7 4.) The reaction will rapidly reach…
A: Given compound is : Which statement is correct with the addition of the pictured substance to…
Q: Lead storage batteries are used in car engines. Group of answer choices True False
A: Given statement is : Lead storage batteries are used in car engines Group of answer choices True…
Q: Identify the type of reaction for the following: 1. formation of (S)-2-butanol from…
A: Here we have to snthesize the following given compounds from the given starting material according…
Q: Which of the following statements is FALSE? Ni(s) → Ni2+ + 2 e− Group of answer choices The…
A: To solve this problem we use Nernst equation Ecell = EMF of the cell E°cell = EMF of the cell at…
Q: Which of the following graphs best represents the change in the pH and the reaction quotient Q when…
A: Here we to predict the the nature of graph of reaction quotient ( Q ) versus time and the pH change…
Q: One mole of N2 at 293.5 K and 5.29 bar undergoes a transformation to a state described by 418 K and…
A: Answer: At constant pressure enthalpy change for the system is dH=nCpdT Here: dH=enthalpy…
Q: Question 25 of 45 -/1 !! View Policies Current Attempt in Progress Three students were asked to…
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Q: What is the pH of a 100.0 mL 0.0500m HCN(aq) solution which is mixed with 5.00 mL 0.200 M KOH(aq) ?…
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Q: ASSERTION: The random or zig-zag motion of the colloidal particles in the dispersion medium is…
A: The random or zig-zag motion of the colloidal particles in the dispersion medium is called as…
Q: A chemist needs to make a buffer at a pH of 4.5. 600 mL of 60MM acid is prepared. pka of acid=4.81…
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Q: MULTIPLE CHOICE Question 9 Which of the following greenhouse gases are produced by people for…
A: Green houses gases are gases in the earth atmosphere that traps heat. Example for green house gases…
Q: 4. Write the product and give mechanism. (i) *CO .Fe Ph, Et (ii) E CH3 RCN.. CRh Me,P PMes
A: The first reaction is migratory insertion of Et to CO carbon. In the second reaction, metal (Rh) act…
Q: Iodine-131 is used medically for the diagnosis of thyroid illnesses. The rate constant for the decay…
A: Given, Decay constant(k) = 8.66×10-2 /day Initial amount = 0.25 mg Time = 120 hrs = 5 days As we…
Q: For the decomposition of nitrous oxide at 565 °C 2 N20→2 N2 + 02 the average rate of disappearance…
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Q: I. (a) Determine the metal-metal bond order consistent with the 18-electron rule for the following :…
A: The number of metal-metal bond order is given below
Q: The pH of a solution prepared by mixing 50.0 mL of 0.125 M NaOH and 30.0 mL of 0.125 M HNO3 is…
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Q: In the industrial "chlor-alkali" process, pure chlorine and sodium hydroxide are produced by…
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Q: The following mechanism has been proposed for the gas phase reaction of nitrogen monoxide with…
A: The given steps of the mechanism is: Step1 Fast: NO+Br2⇌NOBr2Step2 Slow: NOBr2+NO→2NOBr
Q: CH3
A: Note : Start numbering at bridge carbon. Then write substitutions first followed by parent…
Q: Choose an expression for the acid ionization constant (Ka) for HF. O Ka [H3O+][F] [HF] O Ka =…
A: Acid ionization constant (Ka) :- The equilibrium constant for the dissociation of an acid in water…
Q: Complete and balance the following equation. The missing term is _____. Rb-92 →…
A: Rb -92 ---> ___ + -1b0 There occur beta elimination reaction . In beta elimination reaction…
Q: RED ORANGE YELLOW GREEN BLUE BROWN 1 2 IL 6 8 L 9
A: The Retention factor can be calculated as follows
Q: Which of the following indicators will be the most appropriate to be used for the titration of 25.0…
A: When we titrate 25.0 mL 1.0 M Na2CO3, with 1.0 M HCI titrant, up to first equivalence point CO32-…
Q: 4. Consider a solution consisting of 1.75 mol water and 0.97 mol ethanol. Express your answers in…
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Q: 19.
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Q: Calculate the final temperature, in degrees Celsius, for each of the following, if n and V do not…
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Q: positron emission of E 76 35 Br neutron emission of xe 131y 54Xe
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- nc.comwomen SC S X O MyLab x O Course X C Consta X C Suppo x C Nitron x C The Ai x https:/ x G Suppo x + ege.com/course.html?courseld=16985674&OpenVellumHMAC=d4abff74a80d41d197d6c57220120253#10001 View Available Hint(s) Value Units Submit Previous Answers Request Answerchools.schoology.com/common-assessment-delivery/start/4573067641?action%3Donresume&submissionld%3547892539 150 140 130 120 110 100 NANO 90 80 70 60 NH C Ka Náci 50 40 30 20 KCIÓ, 10 Cez(so 10 20 30 40 50 60 70 80 90 100 Temperature (C) The compound with the least solubility at 50 °C is OKI O NANO3 O KNO3 O NH3 O NH&CI O KCI O NaCI O KCIO3 O Cex(SOa)a DELL & Grams of soluteIt was found that solubility of benzoic acid in water at differont temjperatures Was aceording to the follewing tuble. Tc 6 0 40 30 Logs 1.20 Jimol 1.415 1.58 1.77 calculate tne Valux of the chanye in enthalpy graphically?
- PhH₂CO HO O H3O+ 1. H₂, Pd/C 2. H3O+ ethylene glycol pTSACan you describe the main pathways (ingredient class or method) for modifying the rheological properties and adding viscosity / yield to a surfactant cleansing system (shampoo)? What would you be doing to the micelle and why would it thicken?5 g of cobalt carbonate and 13 mL of concentrated hydrochloric acid were used. In another glass, prepare a solution with 8.4 mL of anhydrous ethylenediamine and 2.8 mL of concentrated hydrochloric acid. They are mixed and added and 6.5 mL of peroxide were added to it.30% hydrogen, thenconcentrated hydrochloric acid is added, followed by60 mL of ethanol. 5.1234 g were obtained orange solid [Co (en) 3] Cl3 What is the percentage yield of the reaction. The reactions are shown in the images.
- Describe principles of separation by capillary isotachophoresis (CI) using a diagramWhich of the following refers to a composition in which its components cannot be separated by distillation? Ideal Azeotropic Eutectic Partially Miscible Binary mixtureOral rehydration salts are stated to contain the following components: Sodium Chloride 3.5g Potassium Chloride 1.5g Sodium Citrate 2.9g Anhydrous Glucose 20.0g 8.342 g of oral rehydration salts are dissolved in 500 ml of water. 5 ml of the solution is diluted to 100 ml and then 5 ml is taken from the diluted sample and is diluted to 100 ml. The sodium content of the sample is then determined by flame photometry. The sodium salts used to prepare the mixture were: Trisodium citrate hydrate (C6H5Na3O7, 2H2O) MW 294.1 and sodium chloride (NaCl) NW 58.5. Atomic weight of Na = 23. The content of Na in the diluted sample was determined to be 0.3210 mg/100 ml. Determine the % of stated content of Na in the sample. The stated should be 104.5, how??
- 6.3017g sample was weighted Analytically and made up volumetrically to 500mL. A 25mL alliqout of this solution required a total valume of 41.32mL of 0.0987MHCl to reach bromocresol green endpoint Another 25ml alligout of this salution was treated with 25mL of 0.1014M NaOH react with excess of BaCl₂ solution und left over NaOH required 21.83mL of 0.0987MHCl to reach the phenolpthelin end point. Determine the percentage of Na₂CO3 and. NaHCO3Oral rehydration salts are stated to contain the following components: Sodium Chloride 3.5g Potassium Chloride 1.5g Sodium Citrate 2.9g Anhydrous Glucose 20.0g 8.342 g of oral rehydration salts are dissolved in 500 ml of water. 5 ml of the solution is diluted to 100 ml and then 5 ml is taken from the diluted sample and is diluted to 100 ml. The sodium content of the sample is then determined by flame photometry. The sodium salts used to prepare the mixture were: Trisodium citrate hydrate (C6H5Na3O7, 2H2O) MW 294.1 and sodium chloride (NaCl) NW 58.5. Atomic weight of Na = 23. The content of Na in the diluted sample was determined to be 0.3210 mg/100 ml. Determine the % of stated content of Na in the sample.m-n- x herthHa Eavier Aotive Qung ox Sheerpwth Quir 7 PerentelX Sherpam Maement Sy agng eisevier.com//auirtansignmentid3455638courselda154811Atoken-eyJhbociOUIUUMU9.eydzdwiouprzht.mvdaGlua3NpdovitmvbscDAlinidXNci Question 20 of 30 A calibrated burette will be used to deliver an intravenous medication dosage order of 200 mg contained in 5 mL. This volume is to be diluted in 40 mL and infused over 30 minutes. A 15-ml flush is to follow the infusion. At what rate in milliliters per hour will the infusion need to run to deliver the ordered dose? Record your answer as a whole number. mL/hr Candent Nat Sure m C Cha O ts Ch Cha On 3 6 7. 8. R. T. Y. U A K C M command comman P. CO 38