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Q: Perform the calculation to the correct number of significant figures.  (8.111-7.50)/3.002     ...

A: (8.111 - 7.50) = 0.611  

Q: NH3 A,B,C, or D CH4 A,B,C, or D PCl5 A,B,C, or D BeCl2 A,B,C, or D   A. trigonal pyramidal ...

A: NH3 = trigonal pyramidal CH4= Tetrahedral PCl5 =Trigonal bipyramidal BeCl2 =linear

Q: question 17  What are the number of protons, neutrons, and electrons in the following new isotope? (...

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Q: Calcium carbonate decomposes at 1200 °C to form carbon dioxide and calcium oxide. If 28.1 L of carbo...

A: Charles law states that, at constant temperature the volume of gas is directly proportional to the a...

Q: Dinitrogen tetraoxide, a colorless gas, exists in equilibrium with nitrogen dioxide, a reddish brown...

A: The equilibrium reaction is given as- N2O4 (g) ⇌2 NO2 (g) Objective:  The main objective of the ques...

Q: question 18 (You will NOT find this element on a normal periodic table. You must look at the special...

A: The elements are arranged in the periodic table in various groups and periods. The elements in a gro...

Q: The generic reaction occurs in a closed container: 2A(g) +B(g) → 2Ce) A reaction mixture initially c...

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Q: A new transition metal, bartium, has been discovered, which is represented by the chemical symbol Bt...

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Q: Refer to the structure below to answer the following question       Which of the labeled bonds are t...

A: Cyclohexane conformation:The cyclohexane ring is not planar and to minimize the angle strain the rin...

Q: Which of the following statement about using curved arrows in polar reaction mechanism is true?   a....

A: The major objective of the question is to find the true statement which is about using curved arrows...

Q: Determine the energy of a photon that has a frequency of 4.62 × 1014 Hz. Given: h = 6.63 × 10−34 J s...

A: E = hv Where E = energy of photon h = 6.63*10-34 Js v= frequency of photon

Q: Write a short note on biological relevance of sodium and calcium

A: The elements sodium and calcium belong to the alkali and alkaline earth metals respectively. Both of...

Q: A gas sample is collected in a 0.279 L container at 22.7 °C and 0.764 atm. If the sample has a mass ...

A:   Given that  P = 0.764 atm  W = 0.320 g  V = 0.279 L    T = 22.7o C      = (22.7+273) K        = 29...

Q: Write the Ksp expression for the sparingly soluble compound calcium phosphate, Ca3(PO)2- Ksp If eith...

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Q: List the point symmetry elements for the cubic (43m). The photos included show geometry. The element...

A: Reflection is said to be present in the molecule if molecule present an indistinguishable image on t...

Q: What is the molarity of a solution of NaOH if you dissolved 30.0 g into 500. mL of water?

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Q: Using the IR and NMR spectra provided, determine the molecular structure for C6H12O2. Label any diag...

A: The chemical formula is given as: C6H12O2 First, we calculate the double bond equivalent to determin...

Q: A sample of xenon gas occupies a volume of 6.10 L at 48.0°C and 0.500 atm. If it is desired to incre...

A: Three gas regulations are used in the combined gas law: Charle's Law, Boyle's Law, and Gay Law. Luss...

Q: The radius of a single atom of a generic element X is 161 pm and a crystal of X has a unit cell that...

A: The radius of the element X,  r = 161 pm The unit cell of element X = fcc The relation between eleme...

Q: Enough water is added to 50.0 mL of a 0.660 M NaOH solution in order to bring the total volume to 45...

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Q: Explain how the reaction between 1,10-decanediocdiacid chloride in hexane solution and 1,6-hexanedia...

A: In the condensation polymerization, the two monomer units are combined together to furnish a new pol...

Q: What is the conjugate acid to HPO ?

A: According Bronsted-Lowry acid and base theory, acids are substance which loses protons H+ to form co...

Q: Match the solubility of the following compounds.  BaCO3 A or B NaCO3 A or B KOH A or B (NH4)2SO4 A o...

A: The solubility of the compounds is determined by many factors. Some factors are the size of ions, ch...

Q: What is the molar concentration of each ion present in an aqueous solution created by dissolving 23....

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Q: The solubility of potassium chromate is 66.8 g per 100 g of water. In an experiment, a student had 8...

A: Molarity is defined as “the mole of the solute per unit volume of the solution”. It is represented b...

Q: How many lone pairs of electrons does the Lewis dot structure of H2Se have around its central atom a...

A: The Lewis electron dot structure for given molecules are determined by first drawing the skeletal st...

Q: A particular form of electromagnetic radiation has a frequency of 7.06 × 105 Hz. (a) What is the wav...

A: wavelength of electromagnetic radiation  (λ) = c/f The energy of the electromagnetic radiation   (Ep...

Q: A sample of O2 gas has a volume of 11.0 L at a pressure of 1.30 atm and a temperature of 24 oC. What...

A: Unit of temperature is converted as follows, 0°C=0°C+273=273KT1=24°C=24°C+273=297 KT2=201°C=201°C+27...

Q: 2. The rate constant for the forward reaction is equal to the rate constant of the reverse reaction.

A: At equilibrium concentrations of reactants and products remain unchanged. In other words the concent...

Q: What is the mole fraction of Ne in a mixture of helium, nitrogen, and neon if the total pressure is ...

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Q: Post-Assessment from 8.5D Chemical Formulas Save Question 3 Water is an example of a compound. Which...

A: Chemical compound is a chemical substance composed of many identical Molecules  composed of atoms fr...

Q: A buffer is prepared with 0.2 M ammonia and 0.05 M ammonium ion. Determine the pH of the buffer know...

A: To calculate the pH of a basic buffer solution, we have a relation     pH = pKa + log([salt]/[base])...

Q: Write equilibrium expressions for each of the following heterogeneous equilibria: (a) CACO;(s) 2Ca²*...

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Q: What are four observations used to indicate a chemical change?

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Q: arrange from strongest to weakest acid

A: Phenol is a stronger acid than alcohol. After the removal of the proton phenol forms phenoxide ion, ...

Q: When active metals such as magnesium are immersed in acid solution, hydrogen gas is evolved. Calcula...

A: Molarity and volume of HCl is 0.725 M, 275 mL respectively. Moles = Molarity ×Volume =0.725 M×0.275 ...

Q: In the picture above, solid iodine is undergoing as it is heated and the iodine vapor is undergoing ...

A: What is sublimation?A solid changing to a gas without passing through a liquid phase. Solidification...

Q: Using the IR and NMR spectra provided, determine the molecular structure for C6H12O2. Label any diag...

A: Double bond equivalent (DBE) is DBE=12[2c+2-h-x+n]Where, c=number of Carbon atomc=number of Carbon a...

Q: A sample of neon gas collected at a pressure of 0.575 atm and a temperature of 23°C is found to occu...

A: Given, the pressure of Ne gas =0.575 atmtemperature =23 °C =(23+273.15) K =296.15 Kvolume occupy by ...

Q: A substance has a melting point of -22°C and a boiling point of 75°C. What state will it be at the f...

A: Different intermolecular forces are found between molecules that depend on the type of molecule and ...

Q: Help me with organic chemistry problem

A: The given compound contains two substituents, -CH3 and -COCH3. -COCH3 group present on the ring is d...

Q: What is the calculated value of the cell potential at 298K for an electrochemical cell with the foll...

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

Q: Calculate the pK for the oxidation of X by Hplus at 25 degrees C. X(s) + 3 Hplus → X3 plus (aq)+ 3/2...

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Q: Show your work. A quarter weighs 5.75 grams (g). Find the mass of a quarter in kilograms (kg).

A: Mass of a quarter is 0.00575 kg.

Q: what functional groups are present in this molecule ?

A: Given compound is,

Q: When solving problems involving stoichiometric coefficients, the first step is to make sure you have...

A: The amount of product formed is guided by the limiting reagent. The limiting reagent is consumed com...

Reactions of Ethers

Ethers (R-O-R’) are compounds formed by replacing hydrogen atoms of an alcohol (R-OH compound) or a phenol (C6H5OH) by an aryl/ acyl group (functional group after removing single hydrogen from an aromatic ring). In this section, reaction, preparation and behavior of ethers are discussed in the context of organic chemistry.

Epoxides

Epoxides are a special class of cyclic ethers which are an important functional group in organic chemistry and generate reactive centers due to their unusual high reactivity. Due to their high reactivity, epoxides are considered to be toxic and mutagenic.

Williamson Ether Synthesis

An organic reaction in which an organohalide and a deprotonated alcohol forms ether is known as Williamson ether synthesis. Alexander Williamson developed the Williamson ether synthesis in 1850. The formation of ether in this synthesis is an SN2 reaction.