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Q: A 1.00 L solution contains 19.52  g of nitrous acid, HNO2. What mass of sodium nitrite, NaNO2,…

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Q: unknown metal cation has a +1 charge. The bromide of the unknown tal (Metal Br) is dissolved in…

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Q: At a certain temperature the rate of this reaction is second order in NH, with a rate constant of…

A: The given chemical reaction is as follows: 2NH3(g)  → N2(g) + 3H2 The rate constant for second order…

Q: How long will it take for the concentration of A to decrease from 0.500 M to 0.200 M in the…

A: Here we are required to find the time taken for reactant A to decrease from 0.5 M to 0.2 M

Q: (1) An electrochemical cell contains an SCE anode and a lead cathode. The solution around the lead…

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Q: Explain how can the nanometer length scale affect the system structure and surface area by…

A: For a cylindrical particle, Volume=V=πr2hSurface area=A=2πr(h+r)

Q: What is the goal of cations analysis in ion chromatography?  -what is the goal of Anions analysis…

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Q: You make two different aqueous solutions in separate 200 mL beakers. The first solution contains 10…

A: HF is a weak acid. Hence it is very weekly dissociated in water.  HCl is a very strong acid. Hence…

Q: Consider the following balanced chemical reaction: 2 H;PO, (aq) + 3 Ca(OH)2 (aq) → 6 H20 (1) +…

A: Given: Mass of H3PO4 = 30.0 g Mass of Ca(OH)2 = 40.0 g Known: Molar mass of H3PO4 = 97.99 g/mol…

Q: how much faster will a balloon filled with He deflate through effusion than one filled with O2?

A: According to Graham law of diffusion the rate of effusion of a gas is inversely proportional to…

Q: 1. What is the gravimetric factor involved? 2. What is the percentage weight of the analyte in…

A: Here, substance sought : Cl-   Substance weighed : AgCl

Q: 4NH3+6NO=>5N2+6H2O , Find the molar heat of reaction ΔH, For the reaction at 298K. Give your answer…

A: Given: Temperature (T1) = 298 K Temperature (T2) = 335 K

Q: How many covalent bonds are in the Lewis Structure of CH3CHCI2.? O 5 07 O 4 O 8

A: Which one of the following is correct

Q: Complete the mechanism for the keto-enol tautomerization shown using bonds, charges, nonbonding…

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Q: (c) 35 (d) 13 3. In the periodic table, if oxygen were assigned an atomic weight of one, what would…

A: given, atomic weight of O is assumed to be 1

Q: Consider the following data on some weak acids and weak bases: acid base K. K, name formula name…

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Q: Tin-129 is radioactive and has a half life of 2.23 minutes. How much of a 3.00 mg sample would be…

A: We have to predict the amount of sample left

Q: Consider the following data on some weak acids and weak bases: acid base K. K, name formula name…

A: We have to predict the order of pH of solution.

Q: 2. A liquid at 1000°C and an overall composition of 55% zinc (45% copper) is cooled to 600°C. a.…

A: GIVEN: A liquid at 1000 C and an overall composition of 55% zinc (45% copper) is cooled to 600…

Q: What mass grams of nitric acid , HNO3, is required to neutralize (completely react with) 4.30 g of…

A: Acid base reaction :  2HNO3 + Ca(OH)2 ---> 2H2O + Ca(NO3)2  What mass of nitric acid is required…

Q: Cobalt-60 is radioactive and has a half life of 5.26 years. Calculate the activity of a 2.8 mg…

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Q: Determine the rate of consumption of N2 if the rate for formation of NH3 is 0.366 M/s. Use the…

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Q: The equilibrium constant, Kc, was found to be 1.3 x 10^3 at 24.6 C for the reaction.…

A: Here we are required to find the reduction potential of half reaction of X.

Q: How many liters will 154g of CO2 occupy at -15 degrees celsius and 685 mm Hg?

A: Given :-  Mass of CO2 = 154 g  Temperature = -15°C  Pressure = 685 mmHg  To calculate :-  Volume of…

Q: How long will it take for the concentration of A to decrease from 1.25 M to 0.205 for the second…

A: FOR SECOND ORDER REACTION kt = 1/[A] -1/[A]o where k = rate constant of reaction t= time elapsed…

Q: 2) a. Determine whether hydrogen sulfide (H,S) can be oxidized with hydrogen peroxide (H2O2). The…

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Q: OEt Drag the appropriate labels to their respective targets. Rese H H H. NaOEt NAOH Ph Ph OEt EtO…

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Q: how many liters will 154g of CO2 occupy at -15 degrees celsius and 685 mm Hg? chem question

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Q: Suppose a 250. mL flask is filled with 1.5 mol of CO, 0.80 mol of NO and 0.70 mol of CO,. The…

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Q: What is the electron group geometry around the central atom if it has 2 electron groups? O…

A: Given -> There is two electron groups around Central atom.

Q: In a study of the gas phase decomposition of hydrögen iödide at HI(g)V½ H2(9) + ½ I½(g) the…

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Q: 5) 0.7971 g of molecule, X, is found to contain 3.0 x 1022 atoms. Deduce the identity of X. Given N…

A: Given: Mass of X2 = 0.7971 g Atoms of X2 = 3.0×1022 NA = 6.023×1023 mol-1

Q: (C) (D) 8.44 x 10 5.63 x 1014 (E) 6.94 x 10 20 amber has afready vour PSU ID number (you dont

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Q: The atmospheric pressure on top of Mt. Everest (elevation 29,028 ft) is 0.329 atm. Calculate the…

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Q: For the electrochemical cell 2 Al(s) + 3 Mn (aq) – 2 Al*(aq) + 3 Mn(s) (E° = 0.48 V, [Al**] = 1.0…

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Q: thermometer A sample of aluminum, which has a specific heat capacity of 0.897 J-g .°C ', is put into…

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Q: What volume of hydrogen gas (in mL) at 703 mm Hg and 40 °C can be produced when 2.9 g of MgCO3(s)…

A: According to an ideal gas equation PV= nRT Where P= pressure of the gas, V= volume of the gas, n= no…

Q: 1. Calculate the potential of a silver electrode following the addition of 10 ml of 0.1 M of CaCl to…

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Q: electralyt and the an Orent Electrokinetic injection times how much itime is requiredito injcet a…

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Q: Standardization of Hydrochloric Acid Solution Answer the concentrations in 3 significant figure. The…

A: Below attached file showing the details answer.  All the best .

Q: What is the major organic product obtained from the following sequence of reactions

A: In this question we have to tell the product of the reaction.

Q: How much heat is required to convert 135 g of ice at -15 °C into water vapor at 120 °C?

A: Given,  Mass of ice = 135 g  Initial temperature = Tinitial = -15 0C  Final temperature = Tfinal =…

Q: Consider the following reaction. X=Y If K. = 0.410 at 40. °C and K. = 0.675 at 90. °C, what is AH…

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Q: The method for determining the concentration of nitrate and nitrite using capillary…

A: A multiple choice question based on analytical process that is to be accomplished.

Q: A chemical engineer is studying the two reactions shown in the table below. In each case, he fills a…

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Q: a) Calculate the amount of sodium chloride required to prepare 40 mL of a concentrated solution so…

A: a) It is stated that the 1 in 20 diluted solution is isotonic.

Q: A certain half-reaction has a standard reduction potential E=-0.23 V. An engineer proposes using…

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Q: Methylamine, CH3NH2, has a Kb = 4.40 x 10-4. What is the pH of a 0.230 M  solution of methylamine?

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Q: Order the ltowng tohore tis the weokest fond and 3is storongest NH3 NF3 Ncl3 bond.

A: we need to arrange the given molecules in order of bond strength

Q: *** a u LIUuse Lme correct name for each structure shown. H. [ Select] CH3 [ Select ] -OH- O CH,…

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