What is the Molarity of a solution of sodium chloride (MP = 58.5 g/mol) if 23.4 g of this substance were dissolved in enough water to form 500 ml of solution?

Q: = 4 Which of the electron transitions would release the most energy? A) I B) II C) III

A: When electron makes a transition between energy levels then it emit and absorb energy.  When…

Q: 5. For the reaction 2 NO2) = N;O(«) (a) At a given temperature, 1 mole of NO, is placed in a 10-1…

A: GIVEN: Number of mole NO2 = 1 mole number of mole N2O4 = 0.2 mole volume =10 L  find Keq = ?

Q: 30. A sample of vinegar weighing 10.52 g is titrated with NaOH. The end point is overstepped, and…

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Q: Which of the following is the major product of the rapid reaction of cyclohexene with bromine in…

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Q: Chemistry Calculate the pH at 10.0 mL intervals (0 to 100 mL) in the titration of 40.0 mL of 0.100…

A: Piperazine is a weak dibasic.  It has  two nitrogen atoms which can donate electron density to a…

Q: How does temperature influence the surface tension and viscosity of colloidal solutions and ionic…

A: Surface tension and viscosity are the physical properties of the liquid. Viscosity is the resistance…

Q: The reaction 4A1 (s) + 302 (g) → 2 Al203 (s) and therefore AH is is endothermic, negative…

A: Recall the reaction, 4Al(s) + 3O2(s) ----> 2Al2O3(s) ∆H  = ?  Reaction type= ?

Q: Increase in shell of the 2nd transition series caused the increase in atomic size, true or false?

A: In periodic table chemicals show specific patterns in properties which are known as periodic trends.…

Q: Calculate Ecell for the following cell: Pt(s) | H2(g) | H *(aq) || Pb2*(aq) | PBSO4(s) | Pb(s) given…

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Q: Determine the concentration in molarity of 100ml acid solution used in titrating a 67.119g of sodium…

A: Sodium hydroxide, NaOH is a monoacidic base and KHP is a monoprotic acid.  Hence moles of NaOH =…

Q: Joseph Priestley prepared oxygen by heating mercury(II) oxide. The compound HgO is stable at room…

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Q: 2. Arrange the following atoms in an increasing order on atomic radii, ionization energy, electron…

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Q: 4. The reflux set-up in the experiment allows prolonged heating of the liquid reactants for them to…

A: In organic chemistry experiment, reflux technique is used used to obtain the product in chemical…

Q: 27. A 0.2564-g sample of primary standard potassium hydrogen phthalate (204.23 g/mol) was titrated…

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Q: Identify the oxidation numbers to all the elements in each of the compound or ions Mg N2 O a Mg3=+2;…

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Q: You need to produce a carbonic (H 2 CO3)/bicarbonate buffer solution that has a pH of 4.50. You…

A: Carbonic/bicarbonate buffer solution has a pH of 4.50 . 0.60 L solution contains 0.20 moles of…

Q: 3.Which has higher ionization energy, potassium cation or chlorine anion? Why?

A: Ionisation energy is the energy required to remove an electron from outermost shell of a species.

Q: A 0.40M solution of NH3 is prepared and is in equilibrium with its ions. Calculate the following…

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Q: A reaction that is spontaneous O is very fast O will proceed without outside intervention O is also…

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Q: A 6.42% (w/w) Fe(NO3)3 solution has a density of 1.059 g/mL. (MM of Fe(NO3)3 = 241.86 g/mol).…

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Q: 2262 Sp 2022 Quiz 6 Due May 6th at beginning of class version 1 (A-B) Last Name First Name List #…

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Q: Consider the animation describing opperation of the mercury battery. What is the formula of the…

A: There are multiple sun part in this question. as per our company guidelines we are supposed to…

Q: PROBLEM 2: Find the percent of each component in a 0.4740g of propanediiodic acid and aniline…

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Q: What is the pOH of a 0.010 M acetic acid solution? Acetic acid has a Ka of 1.8 x 10–5. Express…

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Q: Question 13 6 point What is the activity in atoms/sec of a 3 mg sample of "Rb (t12 = 2.8 minutes)?

A: Step by step solution are below

Q: (c) Arrange the following compounds in order of increasing acidity, and explain the reasons for your…

A: Acidity of a given organic compound depends on the extent up to which electron density after…

Q: In the reaction SO2 + 2 H2S 3S + 2 H20 O a. sulfur is both reduced and oxidized O b. sulfur is…

A: Oxidation is the increase in the oxidation state and reduction is the decrease in the oxidation…

Q: mpressed to 3 cu.m, what is the resulti ssure assuming isothermal condition= a abs? (UP TO THREE…

A: Given,  V1 = 8 cu.m V2 = 3 cu.m P1 = 200 kPa

Q: 4. Amount of HCl in grams in preparing 25% 2 liters of solution

A: In this question, we want to determine the amount of HCl in grams unit in 25% of 2L solution.  You…

Q: 2. Complete the following reactions ( H2SO3 + Ba(OH)2 > a. b. CAH9OH + 02 > с. Br2 + YF3 → d.…

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Q: Which of the following alkenes could be used to produce the following alkyl bromide as a major…

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Q: 8. For the reaction 2 Ag + Bg = 2 Ce) Keg = 0.18 at 200°C %3D eq calculate (a) Ke for the reaction 2…

A: The given equilibrium reaction is: 2Ag+Bg⇌2Cg; Keq=0.18 ......(1)

Q: Figure A. Rate of the reaction with increasing DER concentration while BLOOD and BEN concentrations…

A: Given: Run 0.375 M of BLOOD 0.06 M of BEN 1 M of DER dH2O 1 4.0 mL 2.50 mL 0.25 mL 8.25 mL 2…

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

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Q: pase, B, in BH+ + OH¯ B + H2O ization constant B + H+ BH+ B + H½O BH+ + OH- B + OH¯ BH¯ + O²- B…

A: Base ionization constant is the expression of concentration of products to concentration of…

Q: A Predict the main product of the reaction of CH;CH,NH, at pH 5 with compound A.

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Q: . You are an athlete weighing 78 kg. If you are required to lose 9 kg, what would your final weight…

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Q: → What is the difference betwren alkanes, alkyny alkenes

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Q: he decomposition of dinitrogen pentoxide in carbon tetrachloride solution at 30 °c N205 → 2 NO2 + ½…

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Q: 2. Complete the following reactions ( H2SO3 + Ba(OH)2 > a. b. CAH9OH + 02 > C. Br2 + YF3 → d.…

A: Balanced chemical equation is the equation in which number of atoms on left hand side and right hand…

Q: Identify the expected major product of the following electrocyclicreaction. + En + En + En II IV V…

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Q: In the reaction 2K + Cl, 2KCI, the element oxidized is O a. Cl O b. K O c. C12 Od. K+

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Q: exactly 250.0 mL in a volumetric flask. A 50.0 mL aliquot is withdrawn with a pipet and titrated…

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Q: reaction has a rate constant, k = 0.0866 M-1 s-1. What is the half-life (seconds) when the initial…

A: k = 0.0866 M-1 s-1 [Ao] = 4.27 M

Q: 1) Synthesis of an alkene can, in principle, give rise to possible E and Z isomers. If you only take…

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Q: ACID-BASE EQUILIBRIA Doc Jill wants to determine the Ao of a weak acid she isolated called…

A: Answer: When a weak acid is added into water, it furnishes and these free ions conducts the…

Q: The dissolution of ammonium nitrate occurs spontaneously in water. As NH4NO3 dissolves, the…

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Q: numerical value of the concentration of a solution

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Q: 33. What is the concentration of an analyte given that the percent transmittance is 70.3%, the path-…

A: Answer: According to Beer-Lambert law A=εbC Here: A=absorbanceb=path lengthC=concentrationε=molar…

Q: NHČCH, CH,NH2 NH2

A: We can get the desired product by following the strategy where diazonium salt arise as an…