What is the mole fraction of NaOH in an aqueous solution that contains 33.9% NaOH by mass?

Q: Spectrophotometric of a Cobalt Chloride Solution Analysis   1. explain in detail the results of th...

A: In order to obtain the result of the experiment, we have to plot a linear regression graph for both ...

Q: Draw the missing products.

A: Alkyne reacts with HBr to give allylic bromide.

Q: C4 H,0 8 4. 3. PM-00-190 ppm 00

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Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used t...

A: When hot metal is poured into the calorimeter, the metal releases heat, and the water and calorimete...

Q: Which among these objects should you use to filter the precipitate in precipitation gravimetry?   D...

A: Please find your solution below : Gravimetry is a method of quantitative determination of analyte on...

Q: Grignard reagents needed. OH A. The aldehyde should be: H. H. H. H. B. The Grignard reagent should b...

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Q: Which of the following expressions is the correct equilibrium-constant expression for the following ...

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Q: 1.) What are the oxidation states of the atoms in the following complex ions: (a) CO, (b) Cd(OH),, (...

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Q: Answer with steps please

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Q: Identify which of following alkyl halides is most likely to undergo rearrangement during a solvolysi...

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Q: rave-like properties. Determine the waveler by an electron moving at 10 ms-1.

A: Mass of electron(m) = 9.10×10-31 kg Velocity(v) = 10 m/s Using De-broglie wavelength,  Wavelength(L)...

Q: A gas made up of atoms escapes through a pinhole 2.83 times as fast as O, gas. Write the chemical fo...

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as...

Q: . For a 0.326 m aqueous solution of sucrose, C12H22011, What is the boiling point? kb = 0.512°C/m

A: ∆Tb = Kb m  Where ∆Tb = Boiling point elevation                       = To - Ts  Where T0 = Boiling ...

Q: (a) Identify the type of polymer given in the following figure. (i) (b) Elucidate the term polymeris...

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Q: How much 0.5 M KOH must be added to 200 mL of 50 mM glycine at ph 8.6 to bring its ph to exactly 10....

A: Henderson equation of buffer pH = pka + log salt/ acid

Q: 1. Calculate the theoretical potential of the following cells. Indicate whether the reaction will pr...

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Q: 1.27 Draw the structures of the products that are formed when the following disulfide is reduced: CH...

A: Reduction can be defined as Addition of hydrogen to the substrate or removal oxygen from the substra...

Q: For Problem no. 21-22 At elevated temperatures, dinitrogen pentoxide decomposes to nitrogen dioxide ...

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Q: to 11

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Q: Why should you know the composition of the weighing form?   So that it can be filtered properly   ...

A: Please find your solution below : Gravimetry is a method used for the quantitative determination of ...

Q: What is the pH of a buffer solution that is 0.350 M ethylamine and 0.200 M ethylammonium chloride, a...

A: As you have mentioned to answer question 4 only so i answered only question 4.Thank you. 

Q: You are characterizing a new polymer, and found that your sample is composed of the following fracti...

A: Number average molecular weight is given by, Mn¯=Mnwhere, M=mass of polymern=number of moles When di...

Q: A solution contains 12.6 g of non-volatile C10H160 in 87.2 g of benzene, C6H6. The vapor pressure of...

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Q: Write the materials and how are you going to prepare this solutions with step-by-step procedures. 2...

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Q: Complete the following chemical equation below. Provide the reagent that will separate each pair of ...

A: A) Zn +2 and Ba+2 will be separated by so4 -2 ions.  B) Al+3 and C +3  will be separated by the heat...

Q: Nitroglycerin is a dangerous powerful explosive that violently decomposes when it is shaken or dropp...

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Q: For the endothermic reaction: CaCO3 (3) Ca0 (3) + CO2 (g) Le Châtelier's principle predicts that O i...

A: Le Chatelier's principle: According to the Le Chatelier's principle when a change in concentration t...

Q: Suppose 0.7542g of KHP is titrated with 22.74 mL of NaOH. What is the concentration of the NaOH solu...

A: Given data of the following, Mass of KHP = 0.7542 g, molar mass of KHP= 204.22 g mol-1 Volume of NaO...

Q: Calculate the pH of an acetic acid/acetate buffer after the addition of 21.60 mL of a .200 M NaOH to...

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Q: Aqueous hydrobromic acid (HBr) reacts with solid sodium hydroxide (NAOH) to produce aqueous sodium b...

A: Given data from the question, mass of HBr=1.6 g, molar mass=80.91 g mol-1 mass of NaOH=1.5 g, molar ...

Q: Which is longer—a C–H bond or a C–O bond?        Which is shorter—an N–H bond or a C–H bond?   Arran...

A: stronger the bond between atoms, smaller will be there bond length.   

Q: Calculate the freezing point of a solution containing 0.745 kg of CHCI3 and 58.0 g of eucalyptol (C1...

A: Mass of eucalyptol = 58.0 g  Mass of CHCl3 = 0.745 kg   

Q: The force between methylamine and acetate will be greater in methanol than in water because ________...

A: #Q.2: Both methanol(CH3OH) and water(H2O) are polar solvents capable of forming hydrogen bonding.  

Q: sealed 1.0 L flask is charged with 0.500 mol of I2 and 0.500 mol of Br2. An equilibrium reaction ens...

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Q: Philosophers and scientists came up with the early ideas of particles. Democritus believed that matt...

A: Matter is made of small building blocks called atoms.

Q: Under certain conditions the rate of this reaction is zero order in ammonia with a rate constant of ...

A: Given, 2NH3(g) ➝ N2(g) + 3 H2(g) Reaction is a zero order reaction. Rate constant (k) = 0.0091 M.s-1...

Q: EQUATION WRITING: Balance the following redox reactions. Use change in oxidation state method (oxida...

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Q: 2HBR + Mg(NO3)2 2HNO3 + MgBr2 If 55.0 g of HBr are mixed with 55.0 g of Mg(NO3)2, determine: (a) Wha...

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Q: Given the standard enthalpy changes for the following two reactions: (1) 4C(s) + 5H2(g)→C4H10(g) AH°...

A: According to Hess's law change of enthalpy in a chemical reaction is same regardless of whether the ...

Q: Racemic ketamine is used clinically to initiate and maintain anesthesia. For the enantiomer drawn be...

A: Option A is correct answer R.

Q: Water rises in capillar tubes because A. cohesion is greater than adhesion B. adhesion is greater ...

A: Capillary action can be defined as the flow of a liquid into a narrow tube. The liquid flow in oppos...

Q: How would you prepare an aqueous solution of a 15.5L of 1.3 M urea [(NH2)2C=O] from 2.1 M urea?

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Q: For Problem no. 19-20: A flask is charged with 0.124 mol of A and allowed to react to form B accordi...

A:     Recall the given reaction,      A (g)               B (g) The flask is charged with 0.124 mole o...

Q: Show how the reactions take place. Concert the ff condensed formula into structural formula. 1. снЗ-...

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Q: Calculate the wavelength of a photon of light emitted when an electron travels from n=5 to n=2 orbit...

A: 1) Given, ninitial = 5 nfinal = 2 Wavelength of a photon (λ) = ? The formula used here is,

Q: grams

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Q: Write a descriptive information about Filtration and Evaporation.

A: Filtration and evaporation  are separation methods. These separation methods are used to separate mi...

Q: Question 7 The rate law of the overall reaction A+B -C is rate = k[A]2. Which of the following will ...

A: Generally Increasing the concentration and of one or more reactants  and temperature will often incr...

Q: The rate at the start of the reaction is called

A: At the beginning of the reaction. i.e. time t =0, it is called initial rate.

Q: Carbonyl bromide, COBR2 can be produced as shown below. The thermodynamic equilibrium constant, K = ...

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