Avogadro's number is the number of particles in one mole (6.022 x1023 particles = 1 mol). How many molecules of water are present in a 4.5 mol sample of sodium chloride?

Q: When talking about electron configuration, would energy level 4s only be filled after 3d would be…

A: Given , 4s energy shell is filled before 3d

Q: 23 Noting that I (iodine) is less electronegative than Br, in the additic 1-Br to alkenes, the…

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Q: Given the following Fischer projection: iti Br- CH₂OH draw the perspective formula of the molecule.…

A: In the given question we have to draw the formula of the molecule indicating the stereochemistry and…

Q: Br H These two structures, shown as Fischer projections, are: CH3 H₂C -H -CI Br CI- CH, a)…

A: The given fisher projection is as follows,

Q: A sample of gas originally at 25.0oC and 700.0 mm Hg of pressure occupies 20.0 liters. What will be…

A: Answer: In this question we have to find out the new pressure of given gas sample when it has been…

Q: 9 Give the organic product: CH,CH,CH, CECH -NH₂ 1) NINH, 2) CH₂CH₂I B. D.

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Q: Which of the following is the correct IUPAC name for the following compound?

A: Rules for naming the compound containing multiple bond are :    Find the longest continuous chain of…

Q: At 500 K, the equilibrium constant for this reaction: X2(g) + 2Y2(g) =3Z2(g) is Kc = 0.222. At the…

A: Since,Equilibrium constant or Kc is the ratio of the equilibrium concentrations of product over…

Q: Given the following atomic symbol: 41 19 X Which element would be X?

A: To find out the element X, we need to check the atomic number of the element X in the periodic table…

Q: Gaseous ethane (CH3 CH3) will react with gaseous oxygen (O₂) to produce gaseous carbon dioxide (CO₂)…

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Q: 9 Give the organic product: A. C. CH₂CH₂CH₂-C CH -NH₂ 1) NaNH, 2) CH₂CH₂I B. D.

A: When terminal alkyne reacts with a base it forms anion which on reaction with alkyl halide gives…

Q: 1. For the following electrophilic addition reactions, predict the major products. No mechanisms…

A: The addition of hydrogen halides to Alkenes takes place according to Markovnikov rule which states…

Q: I dont understand what the four atoms like (CCHC) and (CHHC) even come from? Could someone show me…

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Q: A sample of tin(II) nitrate, Sn(NO3)₂ (molar mass=242.71 g/mol), is heated in an evacuated cylinder…

A: The Ideal gas law states that- PV=nRT where P is the pressure V is the volume n is the moles of gas…

Q: he molecule NaOCH₂CH3 would be expected to have how many hydrogen atoms?

A: We have been given a molecule.NaOCH2CH3.and we have been asked number of hydrogen atoms in expected…

Q: b) in the products. Include stereochemistry where relevant. CH₂ 1. BH 2. H₂O₂ OH + [ Br CH₂ Br CH₂…

A: We have to give the products of the below-given reactions. Introduction: Hydroboration oxidation…

Q: B. Bromination (reaction with Br₂ in nonaqeuous solvent)

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Q: Choose four chair conformers corresponding to the two chair conformers for each of the two…

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Q: How many signals would you expect in the ¹H NMR spectrum of this compound? Br Br

A: Numbers of signals is equal to chemically non- equivalent proton.

Q: when 18.0 mL of a 4.95 x 10^-4 M sodium carbonate solution is combines with 18.0 mL of a 3.42 x…

A: When the ionic product [Mn2+][CO32-] exceeds the solubility product (Ksp) the precipitation of…

Q: How much energy is released when 137.8 g of water freezes? Report your answer in units of J, rounded…

A: Energy released ( Q) =  mass × ΔHf  ΔHf = Latent heat of fusion = 334 kJ/kg for water

Q: Calculate the pH for each of the cases in the titration of 25.0 ml. of 0.220 M pyridine, C, H, N(aq)…

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Q: Consider the reaction: N2(g) + 3H2(g)2NH3(g) where Kc = 0.500 at 400 °C. If 50.0 L reaction vessel…

A: The given reaction:  N2(g) + 3H2(g) ==> 2NH3(g)    Kc = 0.500  Given data:  Volume of container =…

Q: QUESTION 8 electrons determine the chemical properties of elements.

A: To solve this problem we have to complete the given blanks .

Q: 4. Ksp for Fe(10)s is 1x10-14. Two solutions, one containing Fe3+ and the other 103 were mixed. If,…

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Q: Given the following 2AgCl(s) +X(s) → 2Ag(s) + 2Cl-(aq) + X2+(aq)         E°cell = 0.73 V and…

A: Given reaction: 2AgCl(s) +X(s) → 2Ag(s) + 2Cl-(aq) + X2+(aq)         E°cell = 0.73 V AgCl(s) → Ag(s)…

Q: Methylamine, CH3NH2, is a weak base that hydrolyzes water according to the equation shown below. The…

A: Given :  Concentration of methylamine = 0.225 M  Kb of methylamine= 5.2 x 10-4

Q: The body only breaks down protein when energy sources are low.

A: Usually lipids and carbohydrates are uses as energy sources, but when energy sources are less,…

Q: Show how to convert  trans-3-phenyl-2-propenoic acid (cinnamic acid) to these compounds

A: To solve this problem we have to convert cinnamic acid to given compound .

Q: (ii) (iii) Predict the heterocyclic product(s) M from the following reaction with substrate L. Show…

A: In pyridine-N-oxide 2 and 4 position is prone towards electrophilic attack Amides are converted to…

Q: 1. Which of the following statements is false? Many peptides come together to form polypeptides.…

A: In general, a peptide is a short chain of amino acids, usually 2-50. These amino acids are linked…

Q: At 500 K, the equilibrium constant for this reaction: X2(g) + 2Y2(g) ⇌ 3Z2(g) is Kc = 0.222. At the…

A: Since,Equilibrium constant or Kc is the ratio of the equilibrium concentrations of product over…

Q: Which molecule would be most soluble in water Br2 CH3F   CH3CH2OH CH3CH2CH2CH2NH2

A: We need to find which molecule is most soluble in water. Here we can see 2 set of compounds are…

Q: 3. Using the concepts of retrosynthetic analysis (working backward from a product), predict possible…

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Q: 10 Give the organic product: PCC(2:1 excess) CH₂Cl₂ welche alt. & alt OH C.

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Q: 9. For the reaction below there are 100.0 g of each reactant available. Which reactant is the…

A: We are provided with a balanced chemical reaction.  That is, 2MnO2 + 4KOH + O2 + Cl2 ----->…

Q: 7 Give the IUPAC name for the following compound. OH A. 3-methyl-1-pentenyl alcohol B.…

A: We have to give the IUPAC name of the below-given compound Introduction: IUPAC nomenclature of the…

Q: c) After treatment of 2-methylpropene with peroxyacetic acid (CH3CO3H), write the mechanism with…

A: Organic reaction mechanism

Q: reaction Ni2+ *(aq) + 6NH,(q) → Ni(NH,), (aa) HBr(aq) + NH₂(aq) → Br (aq) + NH(aq) 2H₂O₂-2H₂O) +…

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Q: How many moles of CaCl2 are in 275g of this compound?

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Q: Consider this list of compounds. Which one is represented in the IR spectrum below? Explain,…

A: IR spectra provides the information of functional groups of unknown compound based on the…

Q: Which of the following bases would be able to form the desired alkoxide in sufficient yield? Base 1.…

A: We have find out the correct base to form alkoxide.

Q: Refer to the reaction below for the Kb values and the possible species present in an oxalate buffer.…

A: H-H equation is used to find the amount of KHC2O4 and K2C2O4 required to prepare the buffer…

Q: Of the hydrocarbons listed below, which is the strongest acid? A. B. CH₂-CC-CH₂ H-C=C-CH₂ C. H₂C=CH₂…

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Q: Joules (J) are a measure of energy. Chemists often measure energy in calories (cal). If 1 cal =…

A: To convert the given energy in cal, we need to use the conversion factor given for J to cal.

Q: How do you convert 1:20 to a dilution factor?

A: We need to explain how to convert 1:20 to a dilution factor. 1:20 is the ratio and we have to change…

Q: HCI (aq) + KOH (aq) → KCl (aq) + H₂0 (1) A titration of 18.58 ml of HCl solution required 30.55 mL…

A: Given: The volume of HCl taken = 18.58 mL The volume of the 0.226 M KOH solution required = 30.55 mL…

Q: M-CH=CH-&-SCOA Consider the beta-oxidation of one mole of the this unusual fatty acyl CoA to four…

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Q: A buffer solution is made that is 0.462 M in HCIO and 0.462 M in KCIO. If K₂ for HClO is 3.50 ×…

A: Given -> [HClO] = 0.462 M  [KClO] = 0.462 M  Ka(HClO) = 3.50 × 10-8  Mole of HI = 0.102 mole…

Q: Za Show organic structure is name for the following: A molecube w/ sp²-hybridized intragen 26) A…

A: We have to answers the following questions We have to draw a molecule which contains a sp2…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.