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Q: - History of Cosmetics

A: In this question we have to explain brief description and chemical properties or materials used by t...

Q: Rank the following bases in order of INCREASING base strength: Base Kb I. F- 1.6е-11 II. (CH3)2NH 5....

A: We are given value of Kb and we have to determine the base strength. 

Q: Cobalt(II) complex ion solution: [Co(H2O)6]*2(aq) + 4CI'(aq) [COC14] ?(aq) + 6H2O(I) Pink Blue (3) A...

A: The reaction given is,  

Q: GIVEN: - 500mg of ascorbic acid - 2L of distilled water - 7.5% m/v (this is the stock solution) ...

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Q: Question 18 Calculate the pH of a 0.0999 M solution of pyridine (C5H5N; Kb = 1.7 x 10-9) (the answer...

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Q: Correlate solidification with crystallization(Explanation needed).

A: Solidification is the process of changing the state of a system from either gaseous or liquid state ...

Q: Name the highlighted chemical group in each molecule. Lewis structure name of highlighted group :N=C...

A: Group name is written in next step 

Q: Calculate the change in entropy of a 1kg of He gas at the normal boiling point of He when it all con...

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Q: ASSAY - 20 tablets weighing 2.58 g were crushed to a powder. A portion of the crushed powder (0.5283...

A: Given: A1% = 72.3 Adiluted = 0.582 Stated content = 20 mg

Q: Methyl violet belongs to a large class of chemicals called acid-base indicators. These substances ch...

A: This is about behavior of an acid-base indicator. Here the indicator used is, "Methyl violet".   (a)...

Q: Use the correct key term to complete each of the following sentences. is a type of reaction in which...

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Q: The molar mass of nicotine is 162.1 g/mol. It contains 74.0 % carbon, 8.7 % hydrogen, and 17.3 % nit...

A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

Q: Research the chemical reaction involved in the haber process (e.i. production of ammonia). Show the ...

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Q: A solution of 4.561 MB is 5.476% ionized at 25°C. What is the Kh for this base? (the answer should b...

A: Given :-  Molarity of base B = 4.561 M  % ionization of base B = 5.476%  Temperature = T = 25 °C  Kb...

Q: Determine whether the circled hydrogens are enantiotopic, diastereotopic, heterotopic, or homotopic.

A: To check the type of Hydrogens , we would substitute each hydrogen one by one with other element ( s...

Q: The following reaction has a K. (at 520 K) equal to 1.50 x 10-8. 2 A(aq) + B(aq) = 2 C(aq) If the re...

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Q: Data Table 20.442 A) Mass of crucible (g) 20.717 B) Mass of magnesium and crucible (g) C) Mass of ma...

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Q: 51 For the following reaction, K = 0.538 at 313 K. N;O(g) = 2 NO2(g) If a reaction vessel initially ...

A: Given data :  1. K = 0.538  2. Initial concentration of N2O4 = 0.0500 M   

Q: What is the pH for a solution at 25 °C that has a OH" concentration of 7.52 x10-2 M? (the answer sho...

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Q: Draw Diene + Draw Dienophile of

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Q: Q1/ What weight of pyrite ore (impure FeS2) must be taken for analysis so that the BaSO, precipitate...

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Q: Please do answer properly  Enough of a monoprotic weak acid is dissolved in water to produce a 0.01...

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Q: For He+ ion, calculate the wavelength of the light that is emitted upon the electron's transition fr...

A: This numerical is related to Rydberg formula which is used to determine wavelength of light emitted ...

Q: Given the pair of reactions snown below, where all species are aqueous, with their equmibrium consta...

A:   Given equilibrium reactions are   1.   AB2  <-->  A  +  2 B                                 ...

Q: Which of the following shows the changes as well as the mass relationship? A. Thermal energy B. Th...

A: Thermal energy is the energy produced dur to motion of particles. So, as the intermolecular forces o...

Q: dent reports thadt a reaction was carried out with 5g of nup auaapa The percentage yield has been re...

A: We know that, Percent yield = (Actual yield) / (Theoretical yield)   

Q: conjugate acid-base pair?

A: In this question we have to select correct option of the above statements with suitable reason.

Q: Given the following proposed mechanism, predict the rate law for the overall reaction: 2 NO2 + Cl2 s...

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Q: KEGIONV WORK ON THIS! 45.00 mL of 1.25 M HCI is diluted to a volume of 150 mL. What is the concentra...

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Q: Atomic Number Mass Number Atom Symbol Protons Neutrons Fr 87 223 Tungsten 110 238 86 136 57 44

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Q: A Moving to another question will save this response. Question 4 Calculate the pH of a 0.0927 M solu...

A: Given, Concentration of the pyridine solution (C) = 0.0927 M Kb for pyridine (C5H5N) = 1.7 × 10-9 pH...

Q: Draw the skeletal (line-bond) structure for (2R), (3Z)-2-chloro-4- phenylhex-3-enoic acid. Use a das...

A: The structure of an organic compound is written in the following steps: Determine the number of car...

Q: Question 31 Kw in pure water at 50°C is 3.95 x 10 14. What is the pH of pure water at 50 °C? ((the a...

A: Given that, Kw @50°C = 3.95 × 10-14  Then,  

Q: Triphenylmethanol lab question 1. Describe the method to initiate the RXN between the Mg metal and b...

A:     Steps to form the product : Magnesium reacts with bromo benzene in diethyl ether in presence of...

Q: Unknown G 1H NMR Spectrum: 3 - 5 Duso C solvent) 13C NMR Spectrum: 240 220 200 180 160 140 120 100 8...

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Q: How do we separate a mixture of benzoic acid and naphthalene, given that naphthalene is a white subs...

A: Both benzoic acid and napthalene undergo sublimation process. Both the compounds are volatile in nat...

Q: A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gas...

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Q: What is the effect of pressure (ex. pouring on a glass bottle) on carbonated soda (ex. bottle of Spr...

A: According to Henry's law as we increase partial pressure over the solution amount of dissolved gas i...

Q: 2. Let us consider CO2 (44 g/mol, tripple point: -56.6 °C and 5.1 atm) under different conditions. (...

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Q: 3.1524 g HCI (FW 36.46) was diluted with 45 mL water and titrated with 1.0149 M NAOH (FW 40) using m...

A: The number of moles of a compound can be determined by the ratio between mass of the compound to its...

Q: Directions: Use the cooling curve below to answer the following questions. 130 130 IV 30 10 40 10 e ...

A: NOTE: Since you have posted a question with multiple sub-parts, we will solve first three subparts f...

Q: Cobalt(II) complex ion solution:                                [Co(H2O)6]+2(aq)  +  4Cl-(aq)    ...

A: [Co(H2O)6]2+ (aq)(pink)+ 4Cl- (aq)----->                                        [CoCl4]2-(blue)+ ...

Q: Al203 (s) = 2A13+ (aq) + 302- (aq) If, at equilibrium, a beaker contains 1.00 L of solution with 19....

A: The equilibrium reaction involved is Al2O3 <------> 2Al3+ (aq) + 3O2- (aq) Volume of equilibri...

Q: Calculate the freezing point of a .2m CaCl2 aqueous solution, assuming it dissociates completely to ...

A: Colligative properties: The colligative properties are those properties of solutions that depend on ...

Q: Follow the curved arrows and draw the products of the following reaction. Include all lone pairs and...

A: We have to predict the product of the reaction.  

Q: If the reaction with the following potential energy diagram were catalyzed, the effect would be to: ...

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Q: Which of the following sets of quantum numbers represents an electron with the highest energy in a m...

A: Which set of quantum numbers represent highest energy ?

Q: Triphenylmethanol LAB Q 2. Would it be possible to use ethanol instead of diethylether to prepare th...

A: We have to tell wheater ethanol can be used as a solvent to prepare Grignard reagent, instead of die...

Q: iron−iron−carbide system

A: In this question we have to explain that the iron−iron−carbide system, what are the different phases...

Q: What are the mass and charge balance equations for 0.20 M Ba(OH)2?

A: Given,  Compound = Ba(OH)2  Concentration of Ba(OH)2 = 0.20 M What are the mass and charge balance e...

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.