Calculate the concentration of Ni²+ in a solution that was prepared by mixing 50.0 mL of 0.0300 M Ni²* with 50.00 mL of 0.0500 M EDTA. The mixture was Duffered to a pH of 3.0.
Q: 9. Write the formulas for these hydrates: a. sodium sulfate decahydrate: b. magnesium sulfate…
A:
Q: Draw the OH- molecular orbital diagram
A: The basis orbital for H is 1s and for O are 2s and 2p. Z* for O 2s and 2p orbitals are similar so…
Q: Determine the product(s) formed when cyclohexene is treated with the following reagents. Br Br Br OH…
A: Cyclohexene + HBr ----> bromocyclohexane cyclohexane + Br2/H2O -----> halohydrin derivative of…
Q: a) Stearic acid and oleic acid both have 18 carbons, but stearic acid melts at 71 °C, while oleic…
A:
Q: O el O OEt ei elNEL llo 요요 요 CF3 NEt₂ O
A:
Q: Suppose a 250. mL flask is filled with 0.50 mol of 1₂ and 2.0 mol of HI. The following reaction…
A:
Q: Consider this reaction: A + B → products The following data was obtained at a certain temperature.…
A: First write down the rate law for each trial. Using that, find out the order of reaction.
Q: How many times does a 60.0 kg person need to climb a 10.0 stairway to "work off"each excess Cal…
A: Given , Weight of person = 60.0 kg
Q: Visited A buffer solution is made that is 0.340 M in H₂S and 0.340 M in KHS. preview rupica…
A:
Q: What are the products of the following reaction? Would you expect them to have higher or lower Amax…
A: Given that, two reactions are shown below We have to give the products of the above two reactions.…
Q: Strontium-90, a beta emitter, has a half-life of 28.1 yr. If 38.9 mg of ⁹0Sr were incorporated into…
A: The first step in solving this problem is to determine the decay constant, which is given by the…
Q: Pyridine reacts with hydroxide by nucleophilic aromatic substitution. Complete the mechanism by…
A: Pyridine reacts with hydroxide by nucleophilic aromatic substitution. Complete the mechanism is…
Q: Draw the product resulting from the mechanistic arrows below: XMg + XMgⒸ ܢܹܐ Na
A: The above shown mechanistic arrows indicates that metal alkyl like Grignard reagent and sodium alkyl…
Q: Which of the following is not a characteristic of an alpha particle? O travels very short distances…
A: An alpha particle is a particle identical to a helium nucleus. It consists of two protons and two…
Q: Draw the Mechanism to produce 4-methylchalcone 4-methylbenzaldehyde and acetophenone react when
A:
Q: Resonant shape representations, if an
A: There is no conjugation in the molecule.
Q: Draw the products resulting from the mechanistic arrows below and any ensuing steps: XMg Love MeO…
A:
Q: A 12.2 M solution has a volume of 4.0 L. The volume is doubled by adding water. What is the final…
A: Molarity is defined as number of mole of solute divide by volume of solution in liter
Q: What is the difference between a reduction and an oxidation reaction?
A: Redox reaction : A redox reaction is a chemical reaction in which electron transfer takes place…
Q: A buffer solution contains 0.338 M NaH₂PO4 and 0.304 M K₂HPO4. Determine the pH change when 0.088…
A:
Q: Determine the pressure of 126.0 g of Nitrogen gas (N2) at a temperature of -173 degrees celcius and…
A: Considering ideal gas equation, the above numerical example can be done. Detail solution is given…
Q: Propose a synthesis of the anti-inflammatory drug Ibuprofen from benzene. Show all reagents and all…
A: The complete synthesis of Ibuprofen from benzene is given below-
Q: Choose the best description for the selectivity/specificity of the transformation shown below: Br…
A:
Q: The hydroxide ion concentration, [OH], of an aqueous solution of 0.555 M aniline (a weak base with…
A: Given, Concentration of aniline (C) = 0.555 M Hydroxide ion concentration= [OH-] = ? Note: Kb for…
Q: Draw the product of the reaction shown below. Use a dash or wedge bond to indicate stereochemistry…
A:
Q: [Review Topics] [References] Scoring: Your score will be based on the number of correct matches…
A:
Q: Question # 5: 25.00mL of a sulfuric acid solution was standardized by titrating it with 0.2500 M…
A:
Q: Consider the reaction CO(g) + 3H₂(g)CH₂(g) + H₂O(g) Using the standard thermodynamic data in the…
A:
Q: Calculate the enthalpy of the following chemical reaction: 2Fe(s) +₂02)→ Fe₂O3(s) Given: 2Fe(s) +…
A: Hess's law : According to this law if a process can be expressed as the sum of two or more steps,…
Q: In this lab, you will determine the vapour pressure (P) of water at various temperatures and use…
A: Given that, the slope of the plot of lnP vs 1/T is -7517 K. We have to calculate the enthalpy of…
Q: The A1 nuclide is bombarded by alpha particles, a which results in a neutron emission. What is the…
A: Incase of nuclear reaction, conservation of mass number as well as conservation of proton number…
Q: Hydroxylamine, HONH2, readily forms salts such as hydroxylamine hydrochloride which are used as…
A: Given: Kb of HONH2 is 9.1 x 10-9. Concentration of HONH2 is 0.025M.
Q: Apply the significant figure rules to the final answer. The rules are attached. The final answer…
A: In multiplication/decision : Answer should not have the significant figures more than the original…
Q: The dissociation constants for citric acid are 7.4E-4, 1.7E-5 and 4.0E-7. How many useable end…
A: Given , Citric acid
Q: + Question 36 of 40 What is the IUPAC name of the product made by reduction of the compound shown?…
A:
Q: following is a possible set of quantum numbers for a 3d electron? (n, l, ml, ms ) A) 3, 3, 2, +
A: The four quantum numbers are as follows: Principal quantum number (n): It defines the number of…
Q: In this lab, you will start off by calculating the number of moles of air molecules inside a flask…
A:
Q: A thermometer is taken from an inside room to the side, where the air temperature is 5°F. After 1…
A: Solution - Newtons law of cooling it is given that the rate at which the temperatue of a body…
Q: Step Two: Benzoin to Benzil 1. Set up a 65°C hot water bath in the hood to vent NO2 produced during…
A: In the reaction of benzoin to benzil, the alcohol group of benzoin is oxidized to benzil in the…
Q: The main scientific difficulty in achieving a controlled fusion process is the enormous repulsion…
A: Fusion is a process in which atomic nuclei combine to form a heavier nucleus, releasing energy in…
Q: Provide a synthesis for the given target molecule, starting with an alkyl halide of your choice.…
A: Primary or secondary halide generally undergoes substitution with strong nucleophile by SN2…
Q: A student determines the value of the equilibrium constant to be 5.45x10-37 for the following…
A: The question is based on the concept of chemical thermodynamics. we need to calculate standard gibbs…
Q: Consider the reaction: 2H₂S(g) + 302 (9) 2H₂O(l) +2SO2(g) Using standard absolute entropies at 298…
A: Given: SH2So=205.8 J/K molSO2o=205.1 J/K molSH2Oo=69.9 J/K molSSO2o=248.2 J/K mol
Q: Observe and collect the following data for following a sandwich recipe and making sandwiches! # of…
A: For scenario B Form scenario A it is clear that we need Bread and Cheese in the ratio of 2:1 ( 2…
Q: a) Determine if the autoionization of water is exothermic or endothermic? b)What is the pH of a…
A: Kw is the ionic product of H+ and OH- in auto ionization process of water. H2O(l) <===> H+(aq)…
Q: For the reaction 3Fe₂O3(s) + H₂(g)- →2Fe3O4(s) + H₂O(g) AH° = -6.00 kJ and AS° = 88.7 J/K At…
A: Spontaneity of a reaction depends on change in Gibbs free energy. If ΔGo < 0 , the reaction is…
Q: 24.) After an acid has given up its proton, it is capable of getting back that proton and acting as…
A: To solve this problem we have to write the conjugate base of the given acid .
Q: When an atom of uranium-238 absorbs a neutron, it can ultimately change to an atom of plutonium-239.…
A:
Q: 15. You are given a clear aqueous solution containing KNO3. How would you determine experimentally…
A: A solution that contains the maximum amount of solute is known as the saturated solution. A solution…
Q: In this lab, you will determine the vapour pressure (P) of water at various temperatures and use…
A: Introduction: To calculate the enthalpy of vaporization (△vapH), we use the Clausius-clapayron…
Step by step
Solved in 3 steps with 3 images
- I1.6. A lo0mL solntion g 0.050MM tuffered to pHq.00 was titrates rith n+ 0. OSD OMEDTA. ca) Hhat is the egniralene volume, Ve in milliliters? (b) Caleulate Hhe concenpration f m" at ntConsider the following infermation about sulfurous acid, a diprotic acid (11,S0,L LSO3=HSO, +1I* pK=1.81 HSO, S0,+H pK2-691 The titration curve for sodism sulfite, Na SO, with standard HCl is shown below PH VI V2 ml, HO added What are the major species present al point 3? O Noapter 4 Hom X 0 4.6 Applied Opt x 0o DESU Calculus X | | - https://app. 101edu.co + ا Sunny w Aktiv Chemistry X N. SOLVED: Consic X E Consider the titration of 30.0 mL of 0.275 M weak base B (Kb = 1.3 x 10-10) with 0.150 M HI. R What would be the pH of the solution after the addition of 100.0 mL of HI? Question 10.e of 21 Q Search 8 (366) Optimizat X hp 9 M __________ ن الالك_____ االالالالا تال G Consider the re. X A alt 0 10 ctri www.desu.edu X Su Delaware State x + G 1 4 7 +/- pause 2 5 8 © ه 3 6 9 0 ہے * X x 100 D C S 4:53 3/26/20
- 10)25.0 mL of a 0.15 M solution of the diprotic base EDA is titrated with 0.30 M HNO3. What will be the approximate pH when 25.0 mL of the acid has been added? EDA: pKsi pKs2 Ve (0,3) = 0.15(25s) Ve - 12.5 mL 4.07 7.15 COH-J = pka +log (ANHA]) -log (AGHA]) %3D V2 ( 9.93+ 6.8S) = 8.39=H %3DPlot the titration curve for titration of 50mL of 0.0150M Fe2+ solution buffered to pH's 7.0 with 0.03M EDTA. A-) OmL, B-) 10mL, C-) 25 mL, D-) Calculate the pFe after 26 mL of titrant additions. (Kr.Y= 2.1x10^14, a4=4.8x10^-4)A 0.4071-g sample of CaCO3 (MM: 100.09 g/mole) is transferred to a 500-mL volumetric flask, dissolved using a minimum of 6 M HCl, and diluted to volume. A 50.00-mL aliqout of this solution was mixed with 5 mL of a pH 10 NH3-NH4Cl buffer that contains a small amount of Mg2+--EDTA to adjust the pH to 10. After adding calmagite as an indicator, the solution is titrated with the EDTA, requiring 42.63 mL to reach the end point. Report the molar concentration of EDTA in the titrant. 9.543 x 10-3 M 5.748 x 10-3 M 3.266 x 10-4 M 1.018 x 10-4 M
- bn the lab vou titrated 40 ml of 0.006 M Ca with 0.008 M EDTA at pH 10. What was the pCa in that titration at the following points r4 B 16. After adding 1I5 ml of titrant, the pCa is (a) 2.35 (b) 2.66 (c) 2.92 (d) 3.22 C17. At equivalence point, the pCa is (a) 6.36 (b) 6.81 (c) 7.45 (d) 7.98 C18. Alter adding 45 ml of titrant, the pCa is (a) 8.75 (b) 9.32 (c) 9.95 (d) 10.371) Zn Br OCH,CH CH(CHolCH 2) acidify cold 1) LIAIH, (excess) THE / O°C -nt OCH, PHCH;0 2) Nalo, / THF H20 pH 7 buffer TI(O'Pr), (0.1 ea) 9) (-+DET (0.1 eg 'BUOOH (3.0 eg) CH,C, /-23°C/ 18 h OH h) N(CHo2 LIAIH, / Ether 35°C/ 15h 3- 3. MgBr / Cul os(CH2 THE / -78°C - it 2) 'Bu(CH3),SICI/ imidazole DMAP / CH,C, it i) Oso, (0.6 eg) Ba(CIO32A 25.0mL mixture solution contains NaNO3 and KIO4, titrated against 0.02M Na2S2O3. The volume of titrants is 18.2 mL, the concentration of KIO4 is:a) 3.64 × 10-4 b) 9.1 × 10-5c) 1.82 × 10-3 d) 2.35e) 3.64 × 10-4
- OpenVellumHMAC=defce5f03204e95efa2fcf11b1ecff98#10001 I Review | Constants | Periodic Table [base] pH = pK, + log Tacid 3.5 x 10 2 -log(1.8 x 10-5)+ log 0.1025 4.74 – 0.467 4.28 Part C For 500.0 mL of a buffer solution that is 0.185 M in CH,CH,NH, and 0.135 M in CH3CH,NH CI, calculate the initial pH and the final pH after adding 2.0x10-2 mol of HCl (K,(CH CH,NH,) = 5.6 x 10 4) Express your answers using two decimal places separated by a comma. pHinitial. pHrinal 10.89, 11.12 Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining Provide Feedback Next > P Pearson at © 2022 Pearson Education Inc. All rights reserved. Terms of Use | Privacy Policy | Permissions Contact Us 11:57 PM 4/16/2022 lyp DDI C dele %3D backspace 00I just need help with the [SBO+ ], I can't figure out what I did wrong. Please help A buffered solution of 0.0340 M SbO* and 0.0180 M Cď²+ was prepared with a pH of 2.15 at 25 °C. Eso. = 0.208 V Ee. = -0.402 V Sbo* + 2H* + 3e"= Sb(s) + H,O Cd2+ + 2e- = Cd(s) Which ion is more easily reduced? Sbo* O Ca²+ What is the concentration of SbO* at the potential when Cd2+ will begin to be deposited? [SbO*] = 0.396 Incorrect Determine the potential at the cathode when the SbO* concentration is 0.0015 M? Ecathode = 0.0674 VThe As in a 9.13-g sample of pesticide was converted to AsO43- andprecipitated as Ag3AsO4 with 50.00 mL of 0.02015 M AgNO3. The excess Ag+was then titrated with 4.75 mL of 0.04321 M KSCN. Calculate the % of As2O3in the sample.