Which of the following would be classified as a conjugated pi electron system? I II II IV A. II В. IV С. I D. III

Q: 2. Consider the electrochemical cell where one of the half cells is comprised of a Pt electrode in a...

A: GIVEN: Half cell : Pt electrode NO(g) = 0.278 atm N2O (g) =0.266 atm OH- (aq) = 6.00 M Second half-c...

Q: 1. The formula for the conjugate base of H2S is 2. The formula for the conjugate acid of H2PO4" is

A: Determine conjugate base and acid of the given substance----  

Q: What is the density of the 24 Ma nucleus un 9/mL assuming of 1x 1013 cnm and is spherical in shape? ...

A: Given data : Mass of Mg = 24 amu Diameter = 1×10-13 cm

Q: Viagra inhibit PDE5？what does it means？what will happen if Viagra inhibit PDE5？

A: Viagra is a drug used to treat erectile disfunction.Let's discuss about it according to question.

Q: Question 6 The equilibrium constant Kc for the reaction fructose-1,6-diphosphate = glyceraldehyde-3-...

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Q: How many mL of 0.300 M HCI would be needed to just neutralize 20.0 mL of 0.250 M NaOH?

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Q: A deepwell water sample of 100 mL was titrated with 0.010 M EDTA at pH 12 and consumed 31 mL. Calcul...

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Q: Part A The hydroxide ion has the formula OH. The solubility product constants for three generic hydr...

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Q: Balance the redox react ion t HCl caq) 12 (s) + Cleg) + H20()7 H10gcag) t HClcag)

A: A redox reaction is the reaction where oxidation number of various elements changes in products from...

Q: The table below shows the result of the TLC of two compounds, P and Q: Compound R, value Developing ...

A: In chemical synthesis, the completion of reaction provides a mixture that contains the product, unre...

Q: The temperature of a sample of copper increased by 24.7 °C when 275 J of heat was applied. Substance...

A: Specific heat is defined as amount of heat required to raise the temperature of one gram of a substa...

Q: What is the intermédiate state of an acid-base catalysis during conversion of DHAP to GAP called, an...

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Q: Predict the product and show the mechanism of the following reaction:(Write out complete equations s...

A: Ethers form oxonium compound on treatment with HBr, HCl and HI But when excess halogen acid is used ...

Q: A solution is made by adding 42.0 mL of 0.210-M acetic acid (K = 1.8 x 10-5) to 42.0 mL of 1.50 x 10...

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Q: Please answer with full mechanism ASAP

A:   Given compound has ether functional group, to synthesize ether alcohol precursor is needed Aldehy...

Q: Calculate the pH of a solution containing a salt AcNa derived from a strong base (NaOH) and a weak ...

A: Given, the initial concentration of the salt = 1.75 M The salt dissociates as: AcNa → Ac- + Na+ The ...

Q: A sample of helium gas at a pressure of 1.12 atm and a temperature of 21.6 °C, occupies a volume of ...

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Q: 12.30g of a highly purified protein was dissolved in 260mL of water. At 50°C, the solution exhibited...

A: Given data,  mass of protein=12.30 g  molar mass=?  V=260 ml =0.260 L  T= 50 °C = (50+273)K =323 K O...

Q: 20.0 grams of Sodium hydroxide was dissolved in water up to 500 mL. Calculate the Molar concentratio...

A: Given, Grams of sodium hydroxide = 20.0 g Volume of solution = 500 mL       Required,               ...

Q: In what direction will implementing CO(g) +NO,(g) →Co,(g) +NO(g) affect the rate of the reaction, de...

A: Answer: This question is based on the stoichiometry of the reaction, according to which pressure of ...

Q: The cell notation for the Galvanic cell is A(s)/A²*/B2(s)/B¯ The Standard Reduction Potential are as...

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Q: 2. Predict the major product from the following reaction sequence: (Write out complete equations sho...

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Q: Draw the products of the reaction shown. Electron flow is indicated with curved arrows. H3C-C=C-CH3 ...

A:   Click reaction:  It is an example for cyclo addition reaction  Alkyne and Azide  are reacted in t...

Q: 5.40 A sample of gas is made up entirely of carbon dioxide and water, and there are 259 moles of CO,...

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Q: Draw the products of the reaction shown. Electron flow is indicated with curved arrows.

A: The chemical reaction given is 

Q: Match the following aqueous solutions with the appropriate letter from the column on the right. |1.8...

A: To solve this problem we will use the formula of freezing point depression .

Q: How many moles of hydrogen chloride are contained  in a 52,6 g sample of this gas?

A: The moleculer weight of HCl is 36.5 gm/mol That 36.5 gm HCl=1 mol

Q: 2. Why does the temperature of a mixture of ice and water remain constant during melting and freezin...

A: At melting point of ice, the heat is consumed as 'latent heat' i.e heat used for breaking intermolec...

Q: For each of the following reactions, indicate whether you would expect the entropy of the system to ...

A: Given :-  CH3OH(l) → CH3OH(g)  N2O4(l)→ 2NO2(g)  CO(g) + H2O(s) → CO2(g) + H2(g)  2KClO3(s) →2KCl(s)...

Q: ofmia Merced What is the relationship between the following pairs of molecules? Are they the same co...

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Q: Question 7 The cell notation for the Galvanic cell is A(SYA²*/B2(s)/B¯ The Standard Reduction Potent...

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Q: 50.00 mL of a solution containing 0.15 M CH2 (CO2 H)2 and 0.020 M MnSO4·H2O Calculate the mass of m...

A: Mass of manganous sulfate monohydrate will be calculated from its number of moles. 

Q: What would you expect to a substance melting to a liquid phase or subliming to a gas at 1 atm and ro...

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Q: Consider the reaction: CD → c2* + B2-; Ksp = 2.4 x 10-8 What is AG' at 25 *C? O 8.2 kJ/mol O 6.21 x ...

A: ∆G and Ksp are related as ∆G=-RTlnKspR = 8.314 J/K.molT = absolute temperature  

Q: According to the activity series, which of these metals will react with most acids to produce H, gas...

A: Activity series : K>Na> Ca> Mg>Al>Zn>Fe>Sn>Pb>H>Cu>Ag>Au  

Q: Identify the highest and lowest energy conformation. If multiple energy conformations are degener. E...

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Q: Sighting along the C2-C3 bond, draw the Newman projections of the most stable conformers of the foll...

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Q: In the laboratory, a general chemistry student measured the pH of a 0.377 M aqueous solution of ethy...

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Q: See the titration curve representing the titration of a strong base with a strong acid (acid added t...

A: What are the correct labels for the axes which is given below.

Q: The prevailing atmospheric pressure on a plateau in Colorado is 0.786 atm. Express this pressure in ...

A: Given :- pressure = 0.786 atm  To calculate :- given pressure in ;  psi  KPa  Pa  mm Hg  in Hg

Q: The hydronium ion concentration of an aqueous solution of 0.377 M ethylamine (a weak base with the f...

A: Given, Concentration of of ethylamine solution (C) = 0.377 M [H3O+] = ? M ethylamine (C2H5NH2) is a ...

Q: What is the boiling point of a solution of 210.0g of sodium iodide in 650g of water assuming complet...

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Q: Calculate the molarity of a solution prepared by dissolving 1.56 g of gaseous HCl in enough water to...

A: Molarity is defined as moles of solute present in a litre of solution.

Q: I'm just asking about 2 and 3 but I assume you need the web to answer them

A: The solution is as follows:  

Q: Under all conditions of epoxide ring-opening, the rate-determining step is always: Select one: A. Re...

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Q: what bonds are polar in a NMa3 molecule?

A: NMe3 molecule is having Tetrahedral structure.It has one line pair of electron on N atom. If there i...

Q: A sample of methane gas at a pressure of 1.09 atm and a temperature of 262 °C, occupies a volume of ...

A: The temperature of a gas can be calculated by the ideal gas equation: PV=nRT, where P is the pressur...

Q: According to Kolrausch's law of independent ionic migration, the molar conductivity of an electrolyt...

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Q: A 41.06 g sample of a substance is initially at 24.0 °C. After absorbing 1365 J of heat, the tempera...

A: Given - - > m = 41.06 g T1 = 24°C T2 = 154.4°C Q(absorbed) = 1365 J Specific heat =? We know that...

Q: Ihe acid ionization constant for Cu(H20)62+(aq) is 1.0x10-7. Calculate the pH of a 0.0410 M solution...

A: Answer:- Determined the pH of a 0.0410 M solution of cu(NO3)2 by using equilibrium expression.  Here...