Zn Br Br

Q: (a) What happens when NaOH is added to a bufer composed of CH3COOH and CH3COO-? (b) What happens whe...

A: Buffer solution resists the change in pH on addition of either strong acid (or) strong base.  

Q: Use VSEPR to predict bond angles about each atom of carbon, nitrogen, and oxygen in these molecules.

A: The theoretical concept that furnishes information about the geometry of the molecule by determining...

Q: Co-60 is used extensively in radiotherapy as a source of y - rays. Its half-life is 5.27 years. a) H...

A: Given, t1/2 = 5.27 years (a) The time required to decrease the activity by 35% of its original value...

Q: Please explain  the answer plz

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Q: (a) highest boiling point O HBr Br2 O Ne Since this compound has dipole-dipole forces E unlike the o...

A: Before solving the given questions, the three terms need to be defined. First is the boiling point, ...

Q: Write resonance forms that describe the distribution of electrons in each of these molecules or ions...

A: (a) In SO2 particle the cooperation between the pi bond and solitary pair of O iota instigates two r...

Q: Chemistry Question

A: Polyatomic ions have more than one type of element present in them. The constituent ions are made up...

Q: Assuming that all the energy given off in the reaction goes to heating up only the air in the house,...

A: In the house, the number of moles (nair) of air is; 1 m3=1000 Lnair=Volume of housemolar volume of a...

Q: Although both sugar and salt are soluble in water, the way in which they dissolve is different. Expl...

A: We know that salt is an ionic compound and Sugar is a covalent compound.

Q: The area of a telescope lens is 7903 mm² (a) What is the areain square feet (ft² )? (b) If it takes ...

A: a) Conversion of mm into feet: 1 feet=304.8 mm1 mm =1304.8 feet=0.00328084 feet Calculation of area ...

Q: Both of these reactions are oxidations. Why is the reaction on the right a stronger oxidation? он он...

A: In the right reaction, carboxyl group is also oxidized.

Q: Please answer number 1

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Q: Rank the attached compounds in order of increasing boiling point. Which compound is the most water s...

A: All the given compounds have polar nature and they show dipole-dipole interactions.  The hydrogen bo...

Q: What is the generic structure of amines? Write the structures oftwo specific amines.

A: Amines are one of the most essential organic compounds which can be derived by replacing one or more...

Q: how many grams of iron can be re-

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Q: What is the concentration of iodate in a 0.025 M Ba3(PO4)2 1eu uonnı barium iodate, Ba(1O3)2 ? (Ksp ...

A: The solubility of ionic precipitate decreases by the addition of the soluble compound having an ion ...

Q: Write and compare the ground-state electron configurations for each pair of elements. Q.) Carbon and...

A: Carbon atom is in second period of periodic table, in p block, so it's 2p orbital will be the last o...

Q: 5. Determine AS for the following reaction: H2 (g) + 12 (g)- 2HI (g) Substance S° (J/mol K) H2 (g) I...

A: Entropy change of a reaction can be calculated by using the formula:∆S=∑S°(products)-∑S°(reactants) ...

Q: It took 774.7 s for 42.04% of a substance to react according to first-order kinetics. What is the va...

A:   K = 2.303/t log (a/(a-x)) where K = first order rate constant = ? s-1 t = time taken = 774.7 s a =...

Q: What is a colligative property

A: The question is based on the concepts of solutions. colligative property is one of the important pro...

Q: Chemistry Question

A: Since you have posted multiple questions we will solve only first question for you. If you want any ...

Q: How many different types of protons are present in attached compound?

A: How many different types of protons are present in an attached compound has to be determined.    

Q: Explain mechanism- Addition of Grignard and Organolithium Reagents (R—M) to Nitriles ?

A: Grignard reagent: It is the chemical compound containing magnesium halides attached to organic group...

Q: At a particular temperature, the reaction below has a K value of 1.03 x 10-2. If [SO3] = 0.97M, [SO2...

A: The answer is given as follows

Q: Determine the empirical formula for the following compound: C8H10N4O2 A. C8H10N8O4 B. C2H5NO ...

A: The empirical formula for the given compound C8H10N4O2 is to be determined. An Empirical formula is ...

Q: Calculate the solubility of Mn(OH)2 in grams per liter when buffered at pH (a) 12.5

A: pH = 12.5 pOH =14 -12.5=1.5

Q: When calculating [H3O+] for weak acid solutions, we can often use the x is small approximation. Expl...

A: The nature of given approximation, and its validity has to be given.

Q: In the determination of molar mass of an unknown substance by ebullioscopic constant, 30 mL of aceto...

A: The increase in boiling point when a solute added  is determined by the number of solute molecules p...

Q: if the volume of a container is reduced by 1/2 what happens to the pressure of the gas

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Q: Part A Which of the following processes is exothermic? the chemical reaction in a "cold pack" often ...

A: Exothermic reaction: A reaction in which heat energy is liberated.

Q: Write the name of monomers used for getting the following polymers :(i) Terylene(ii) Nylon-6, 6

A: The given polymers are i) Terylene ii) Nylon-6,6 To find: Name of the monomers used for getting the ...

Q: What is magnetic susceptibility and magnetic moment? Use electron configuration to describe the para...

A: The interaction of electrons and nuclei with the externally applied magnetic field creates the degre...

Q: pls answer 3-37

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If y...

Q: Camels store the fat tristearin (C57H110O6) in the hump. As well as being a source of energy the fat...

A: Given that   Mass of water is = 100g of fat  Farmula of tristearin= C57H110O6  

Q: List all possible term symbols could for a Si atom.

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Q: How many grams of oxygen gas are necessary to react completely with 3.01 × 1021 atoms of magnesium t...

A: Magnesium reacts with oxygen gas to formed magnesium oxide as the following chemical recation 2 Mg+O...

Q: if the volume of a container is reduced by 1/2 what happens to the pressure of the container?

A: Concept is based on Boyle's law:  It states that at constant temperature pressure (p) is inversely p...

Q: Calculate the solubility of Mg(OH)2 in 0.50 M NH4Cl.

A:  The solubility of Mg(OH)2 in 0.50 M NH4Cl has to be given, Ksp of magnesium hydroxide is 1.8 × 10-1...

Q: O What is the term to describe the alcohol formation on the least substituted carbon of an alkene? (...

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Q: How many moles of Ca atoms are in 613.29 g of Ca? Group of answer choices 6.53 x 10-2 mol 15.30 m...

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Q: Define about Reduction of Acid Chlorides and Esters ?

A: Reduction of carbonyl compounds : The reduction of carbonyl compounds like aldehydes, ketones, acid ...

Q: Which of the following could be useful for determining the chemical formula for pentaerythritol tetr...

A: Pentaerythritol tetranitrate (PETN) = C5H8N4O12 1. PETN is a nitrate ester of pentaerythritol 2. PET...

Q: 1. Draw all of the possible stereoisomers of the compound shown. Group them asenantiomeric pairs, or...

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Q: This graph shows an endothermic reaction.                          This graph has a greater activati...

A: Graph of endothermic reaction and purpose of catalyst

Q: How many grams of N2 are contained in an 11.2-liter sample at STP?

A: We know at standard temperature and pressure condition ; The volume of 1 mol gas = 22.4 L 1 mole = 2...

Q: A heat pump is an electrical device that heats a building by pumping heat in from the cold outside. ...

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Q: In the determination of molar mass of an unknown substance by ebullioscopic constant, 30 mL of aceto...

A: We have , boiling temperature of acetone (pure solvent) = 56°C Boiling temperature of solution = 56....

Q: Treatment of cis-2-bromocyclohexanol with NaOH yields cyclohexanone instead of an epoxide. Draw curv...

A: We have been asked to show the movement of electrons in this step of the reaction mechanism.

Q: Which base as shown is most appropriate for preparation of a buffer solution with a pH of 10.65? Exp...

A: Given, pH of the solution is 10.65. The pH of the solution of buffer is always higher than 7 when a ...

Q: If excess of C2H4 is combined with 122.0 g of Br2, as the following reaction, C2H4(g) + Br2 (l) ---&...

A: Given, mass of Br2 = 122 g the balanced chemical equation : C2H4 (g) + Br2 (l) → C2H4Br2 (l)    

Aromatic Compounds

Aromatic organic compound or aromatic system is an important class of hydrocarbons under the branch of organic chemistry. Aromatic compounds are also called arenas. The definition of aromatic organic compounds can be stated as a class of organic compounds with a planar cyclic ring of atoms bonded through alternated single and double bonds. Due to these alternating bonds, a peculiar feature termed as ‘resonance’, that is, delocalization of pi electrons or the electrons is shared within the atoms of the ring which are present in the aromatic compounds. The word ‘aromatic’ includes a Greek word ‘aroma’ which means smell, indicating that they were named as such due to the sweet odor they produce. Many well-known flavors such as vanilla, cinnamon, and few scents from flowers are extracted from aromatic compounds. Benzene with chemical formula C6H6 is a very common aromatic compound that contains six atoms of carbon held in the cyclic ring of alternate double bonds. It is also to be noted that not all aromatic compounds contain benzene ring. This can be explained by Huckel’s rule.