How was the precipitate obtained after filtration? a. By drying the precipitate on the filter paper using a desiccator. b. By charring the filter paper and igniting the product in a crucible. c. By redissolving in hydrochloric acid

Q: The conjugate base of HPO, is 4 A) PO, 3- 4 В) НРО, 4 C) H̟PO, D) H,PO,

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Q: 9. For 2.AB+C→4+2BC, suppose AH= 100kJ, Ea = 250KJ, and that the intermediate is A+ C. Describe a…

A: To describe a potential energy process for the given reaction. 2 AB + C2 ---> A2 + 2 BC

Q: Q21. Find out the structure of compounds 1-3 in the following multistep synthesis. он DMSO, (COCI)2…

A: Detail mechanistic pathway is given below to find the intermediate product

Q: The vapor pressure of pure CCl4 at 65oC is 504 mmHg. How many grams of naphthalene (C10H8) must be…

A: Given- Vapour pressure of pure CCl4=504 mmHg Weight of CCl4= 25.00 gram  Vapour Pressure of solution…

Q: A healthful diet should have a distribution of macronutrients. In the following, match the caloric…

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Q: Q3. (A) Identify the following compounds as chiral or achiral.

A: Identify the compounds as chiral or achiral.

Q: A sample of bismuth undergoes a temperature change of +77.24 °C while absorbing 754.5 joules of…

A: Specific heat capacity is amount of heat needed to increase the temperature of one gram of substance…

Q: 13.25 Use the Nernst equation to calculate the cell potentials of the following cells at 298 K. (a)…

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Q: After

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Q: Give the IUPAC nomenclature of the compound below.

A: Start numbering from trijunction(where 3 carbon join together)  Move that side such that functional…

Q: c. What is the initial rate of formation ofC if the initial concentration of A is 3.0 x 10 2. The…

A: The rate equation for the reaction can be written as: Rate=kAxBy......(1) Here, x is the order with…

Q: A certain reaction has an activation energy of 52.53 kJ/mol. At what Kelvin temperature will the…

A: Given K2 = 5 K1

Q: 1a.In which of the following substances does nitrogen exhibit the lowest oxidation number? A. NaNO2…

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Q: quation the dehydration synthesis of glucose and fructose. NG GOAL 15: The Structures of Cellulose…

A: Starch and cellulose are  comparable polymers usually arise. In truth, both are made of the same…

Q: In a two-vessel technique titration set-up, what is the unknown substance if the volume of…

A: phenolphthalein and bromocresol can be used in determination of alkalinity of water  The alkalinity…

Q: A solution contains a mixture of Na2CO3 and NaOH. Using phenolphthalein indicator 25 ml of mixture…

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Q: Which is a major product of this reaction? AICI, a) b) c) CI ČI .CI e) (p

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Q: Write the equilibrium-constant expressions and obtain numerical values for each constant in the…

A: Here we are find the equilibrium constant expression for the basic dissociation of aniline and…

Q: Estimate the freezing point of 250 cm3  water sweetened by the addition of 2.7 g sucrose. Treat the…

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Q: A buffer solution is made that is 0.475 M in HNO2 and 0.475 M in KNO2. If Ka for HNO2 is 4.50 x 10…

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Q: 4. Given the Borax reaction below, what would be the solubility product (Ksp) of borax at 40 °C, if…

A: Given-> Solubility of borax= 0.8 mol L-1

Q: Draw compounds containing the following. A. A primary alcohol B A tertiary nitrile C. A secondary…

A: Alcohol - mean contains OH group Nitrile - contains CN group Thiol - contains SH group

Q: A particular reactant decomposes with a half-life of 103 s when its initial concentration is 0.275…

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Q: Question number 6 Calculate the concentration (molarity) of CH,NH, in a solution that is 0.0614 M…

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Q: Which of these situations will result if some CH4lg) Is removed from the reaction Colg) + 3H2(g) =…

A: Reaction given:  CO(g) + 3H2(g) ⇌CH4(g) + H2O(g) According to Le-chatelier's principle:  If an…

Q: Use Hess's Law to calculate the enthalpy for this reaction: 4SO3(g)→4S(s) + 602(g) AH°rxn = ??? kJ…

A: Given, a) SO2(g) ➝ S(s) + O2(g)   ∆H° = +296.8 kJ b) 2SO2(g) + O2(g) ➝ 2SO3(g)  ∆H° = -197.8 kJ…

Q: In a two component mixture assuming it forms a single phase, how many variable can be considered? O…

A: Given, No. of componene C= 2 No. of phase P=1 No. of variables = ?

Q: Question 10 Which of the following refers to the phase transition from liquid to vapor? Sublimation…

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Q: The reaction between iron and thiocyanate ions involves this equation: Fe3+ (aq) + SCN" (aq) =…

A: A question based on equilibrium concept that is to be accomplished.

Q: The Ksp of barium chromate is given below. What is the molar solubility, in g/L? Include units in…

A: Ksp of barium chromate = 1.2 × 10-10  Molar solubility of barium chromate (in g/L ) = ?

Q: A sample of sodium undergoes a temperature change of +11.9 °C while absorbing 549.7 joules of 7.…

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Q: (c) Ti* complexes do not favour B-elimination reaction. Explain citing example.

A: In order to have beta hydride elimination, it should have following condition matched- 1) Complex…

Q: Based on the following information Cl2+2e=2Cl^- E=+1.36V; Na^++e^-=Na(s) E=-2.71V which of the…

A: Cl2 + 2e- --> 2Cl-      ;   E° = +1.36 V  Na+ + e-   ----> Na    ;   E° = -2.71 V  Based on…

Q: For the following example, identify the following: F2(l) → F2(g) A. at low temperature, the…

A: Here we have to determine the condition at which the given reaction F2(l) –> F2(g) will be…

Q: Which is the major product of this reaction ? CH=CH2 + HBr Br c) b) Br a) Br Br d) e) Br

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Q: Consider a solution consisting of 1.75 mol water and 0.97 mol ethanol. What is the entropy of…

A: Answer:- 14.7 J/k

Q: Give a clear handwritten answer

A: Given,  Molarity of acetic acid (CH3COOH) = 0.0195 M Molarity of sodium acetate( CH3COONa) = 0.0265…

Q: What is the name of this compound ? .CH2-C=C-CH3 a) 3-butyl-1,3-hexadiene-5-yne b)…

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Q: Why does the concept of colligative properties apply only to dilute solutions? Eugenol is the active…

A: 1. Answer. : Colligative properties are properties of solutions that depend on the number of…

Q: The reaction between iron and thiocyanate ions involves this equation: Fe3+ (aq) + SCN" (aq) =…

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Q: 1

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Q: Consider the following cell notation and use a Table of Standard Electrode Potentials (Appendix Le…

A: Ecell can be calculated using nernest equation. To calculate Ecell , we would first write a complete…

Q: 13.76 Chrome is plated from solutions of chromium(III) ions. If a particular application requires…

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Q: The vapor pressure of 2-propanol (60.096 g/mol) is 50.00 kPa at 338.8 °C, but it fell to 49.62 kPa…

A: Given: Molar mass of solvent = 60.096 g/mol Mass of solvent = 250 g Vapor pressure of pure solvent =…

Q: 218- E B 0.006- A 0.01 100 374 Temperature (°C) vap(atm)

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Q: Which of these situations will result if some CHalgi is removed from the reaction COlgi - 3Hzlg) -…

A: We have to predict the resultant situation.

Q: 218- E 0.006- C A 0.01 100 374 Temperature (°C) vap

A: ->In phase diagram there is solid , liquid and gas . boundary between solid and liquid is…

Q: 1.25 moles of NOCI were placed in a 2.50 L reaction chamber at 427°C. After equilibrium was reached,…

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Q: At 25°C the rate constant for the first-order decomposition of a pesticide solution is 6.40 - 10…

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Q: 2.Describe four different ways in which the enthalpy change associated with the following chemical…

A: The reaction can be given as  HNO3(aq)+ KOH (aq) →KNO3(aq)+ H2O And the reaction generated 53.4…