Why is aluminum foil punctured in an experiment to determine the partial weight of volatile liquids?

Q: Identify the conjugate acid-base pairs: (. ---) (a) CH;COOH(aq) + H2O() CH;COO2(aq) + H30-(aq) (b)…

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Q: A "dead" 12-Volt lead/acid storage battery has 11.30 g of PbSO4 (molar mass = 303.3 g), deposited on…

A: Answer: This question is based on Faraday's first law of electrolysis which suggests that 1 mole…

Q: The chemical environment of protons can be deduced from their chemical shifts. What are the relative…

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Q: Addition of HCl to 3-methyl-1-pentene gives two products. One of these is 2-chloro-3-methylpentane.…

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Q: Complete the following nuclear equation and identify X. Chromium-53 + alpha particle ---> neutron +…

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Q: Complete and balance the following redox reaction in acidic solution Teo, (aq) + N,O̟(g)→ Te(s) +…

A: The given redox reaction is: TeO32-aq+N2O4g→Tes+NO3-aq

Q: of Submitted the following oxidation-reduction reaction as if it were to occur in a basic solution.…

A: Given reaction is :  I- (aq) + ClO- (aq) ---------> I3- (aq) + Cl- (aq)  Balance the reaction in…

Q: Which two of the following compounds are identical? он OH HO он HO" Но, Он Он но, I II III IV Select…

A: The solution of the given question is

Q: HO- 1. Hg(OAc)2, 2. NaBH4 NaOH Br HO,

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Q: 2.00 mol of an ideal gas occupies what volume (in L) at 800 torr and 300 K? Answer to 1 decimal…

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Q: Puniverse n substance: O2(g) → NİSS) 318 -88.1 SO2(9) + O2(g) 68 NiOs) at 25 °C SO2(g) 412 -296.8…

A: According to the question, we need to determine the value of ∆Suniverse. The chemical reaction:…

Q: 5. Given the reaction 2 CO(g) + 0,(g) 2 CO(g), what is the effect of adding O, (g) to a…

A: Given reaction , 2CO (g) + O2 (g) <----->2CO (g) we have to see effect of adding O2

Q: These equilibrium constant are measured in the reaction below at 300 K: [Cu)e = 0.148 M, [Sn ]=…

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Q: Standardization of EDTA Solution Answer the concentrations in 3 significant figure. You can use…

A: First, we have to calculate the molarity of the stock and working standard CaCO3 solution.

Q: Gravimetric Analysis. Please show complete solution. Thank you 1.) A 0.8870 g sample containing…

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Q: W 17 A 0.36 M hydrocyanic acid (HCN) solution has a pH of 4.87. Give: (a) the balanced equation for…

A: Given, Concentration(C) = 0.36 M pH = 4.87 pH = -log([H+]) [H+] = 10-4.87 = 1.35×10-5 M a)…

Q: Rese Consider the solubilities of a particular solute at two different temperatures. Temperature (C)…

A: The solubility of any compoumd can be defined as the mixing of the solvent into the solution at…

Q: What Have I Learned So Far? What will be the boiling point and the freezing point if you were to…

A: Given :  Molality of aqueous solution of glucose = 0.5 mol/kg

Q: 9. Predict the geometries of CIF, using the VSSPR method with the following steps Step 1) Draw the…

A: The given molecule: Clf3  Where as , total no. Of electron pair = 5 No. Of bonding pair = 3 No. Of…

Q: NUCLEAR REACTIONS Nickel-56 decays with a half-life of 6.075 days. 1. Write the balanced nuclear…

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Q: The optically active bromohydrin (1R, 2R)-2-bromocyclohexanol reacts with base to produce…

A: Product is not a Racemic product because the starting material is optically pure ( just taking one…

Q: Proteins occurring in the b-pleated sheet structure Multiple Choice contain no peptide bonds. are…

A: The correct answer is Option (B) The b-pleated structures are relatively inelastic.

Q: What is the IUPAC name for the following

A: In this question we have to tell the IUPAC name of the compound.

Q: The reaction of NO- NO2(g) + O3(g) The reaction is first-c What is the rate of re

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Q: Magnesium in 50ml of blood was extracted and mesured using falame emission AES An emission E 06 was…

A: In flame AES, the signal is proportional to the concentration of the analyte in the sample.

Q: The brackets ([ ]) used in an equilibrium constant expression represent O the physical state of the…

A: In this question, we will select the right statement for brackets used in equilibrium constant…

Q: Gravimetric analysis. Please show complete solution. Thank you Question:  A 3.00- g sample of an…

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Q: An HCl solution requires 65.0 mL of 0.350 M NaOH to neutralize 150.0 mL of it. What is the…

A: Given: Volume of NaOH = 65.0 mL Molarity of NaOH = 0.350 M Volume of HCl = 150 0 mL

Q: 5. At a given temperature the vapor pressures of benzene and toluene are 183 mm Hg and 59.2 mm Hg,…

A: Given  Vapour pressure  pbenzene = 183 mm Hg  ptoluene = 59.2 mm Hg  Mole fraction  Xbenzene = 0.620…

Q: A gas has a density of 5.51 g/L at a pressure of 1.61 atm and a temperature of 298 K. What is the…

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Q: A voltaic electrochemical cell is constructed using the following reaction. The half-cell components…

A: 1.) At anode oxidation takes place . Oxidation is lose of electrons.  2.) At cathode reduction takes…

Q: A thorium-232 nucleus decays by a series of alpha and beta emissions until it reaches francium-224.…

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Q: 2. The following sequence of steps has been proposed for the overall reaction between H2 and Br2 to…

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Q: Electrochemical cells can be used to measure ionic concentrations. A cell is set up with a pair of…

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Q: 2. Classify the following as primary, secondary or tertiary alcohol a. CH;CH,CH,CH, OH с. ОН b. OH…

A: Alcohols are classified as primary, secondary and tertiary on the basis of the degree of…

Q: Given the reaction 2 CO(g) + 0,(g) 2 CO(g), what is the effect of adding 0, (g) to a constant-volume…

A: According to La-Chatelier principle for a reversible reaction, at equilibrium , if condition of…

Q: 1) Determine the pH for each of the following (show your calculations; answer to two decimal…

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Q: Write out the reaction process associated with the first ionization energy and first electron…

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Q: For the following hexapeptide shown below, answer the following questions. E-N-D-Y-K-L Draw the…

A: Hexapeptide given is: E-N-D-Y-K-L

Q: h of the following compounds is (S)-4-chloro-1-methylcyclohexene? CH3 CH3

A: Cyclic alkenes can be defined as the organic compounds that contain double bonds in cyclic system.

Q: What is the Lewis structure of C61H67N9O17S4.

A: The lewis structures  is as follows Pafolaciannine

Q: Why is it important to assign oxidation numbers to all the atoms in the equation?

A: Why is it important to assign oxidation numbers to all the atoms in the equation?

Q: Compute how many moles of oxygen are in a 70 L tank at 25 °C if the pressure is 2000 psi.…

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Q: The following molecule is treated with an acid catalyst and water. What types of products will be…

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Q: 4. The decomposition of compound A has a rate constant of 2.89 x 102s'. (a) What is the order of…

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Q: oxidation number

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Q: The decomposition reaction: SO,CL(g) S0,(g)+ Cl,(g) is first-order, and has a rate constant of 2.24…

A: For first order kinetics k = 2.303 log(A0/A)/t where k = rate constant A0 = initial concentration of…

Q: The following compound has how many stereogenic centers? CH3 Select the correct response: 1 O 4 3

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Q: 12. a) Describe the bonding scheme of the AsH, molecule in terms of hybridization. sp3 b) What is…

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Q: Principle: lodometry The percentage purity of cupric sulfate set by the NF is 98.5 to 100.5%…

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