If the mass of a pure silver (Ag) coin is 15 g, then how many Ag atoms are present in this coin?

Q: NH4Cl (s) + H2O (l) --> NH4+ (aq) + Cl- (aq) We learn in Chapter 12, that the true measure of…

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Q: A solution of saturated PbBr2 is found to contain 2.4 ✕ 10−2 M bromide ion. Calculate the Ksp of…

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Q: 6. b) a) Define electronegativity. Which element in each of the following sets of elements would…

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Q: For the molecule below, predict the expected peak integral for the indicated proton. Enter the…

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Q: What is the Law of Mass Action for the following reversible reaction in the gas phase?          H2…

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Q: Draw a structure for the product formed in this reductive amination reaction. Upload a jpg image of…

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Q: What is(are) the major product(s) of the following reaction ? Br Ph OCH₂CH3 Ph CH3CH₂OH OCH₂CH3 Ph…

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Q: Q2. If a photon of energy 4.9x10" Jejects an electron from a metal having a velocity of the emitted…

A: Since you have asked multiple type questions, we will solve only first  questions for you. If you…

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Q: ← C session.masteringchemistry.com/myct/itemView?assignment ProblemID=190556605&offset=next <W3…

A: Number of protons, neutrons and electrons in the following isotopes  a) 21H  b) 147N

Q: Outline the type of defects in Crystalline structure

A: To outline the type of defects in Crystalline structure.

Q: Question 6 of 25 Provide the correct systematic name for the compound shown here. O: CH ||…

A: Rules for IUPAC nomenclature of ester: • The name of the ester depends on the alcohol and carboxylic…

Q: An advertising sign gives off blue light and yellow light. a. Which light has higher-energy photons?…

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Q: Review I Constants I Periodic Table On a mission to a newly discovered planet, an astronaut finds…

A: Given ; % of 69Ga = 60.11              % of 71Ga = 39.89

Q: A beam of electrons (m = 9.11 × 10-³1 kg / electron) has an average speed of 1.8 × 108 m/s. What is…

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Q: What is the molarity of concentrated acetic acid if the solution contains 40% acetic acid by mass…

A: Molarity of a solution is equal to the number of moles of solute per liter of the solution.

Q: Colligative Properties 1. A solution is prepared by dissolving 2.40 g of biphenyl, C12H10, in 75 g…

A: Given,  The mass of biphenyl (C12H10 ) = 2.40 g.  The mass of benzene (C6H6 ) = 75 g.  The boiling…

Q: TRUE or FALSE Molecular mass is the sum of the atomic masses in a molecule.

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Q: 16. What is the pH of a solution of 0.7500 M H₂A? Ka2 = 0.005

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Q: Place the following types of radiation in order of increasing wavelength by numbering them from 1…

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Q: 9. Draw an electron dot diagram to illustrate the bonding for a molecule of H₂O. 10. Identify the…

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Q: 2. Micelles stay in the soap solution as colloid since: negative charges from polar heads repel each…

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Q: What is(are) the major product(s) of the following reaction ? H₂C OIK OH HC1

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Q: A rifle bullet (mass = 1.50 g) has a velocity of 7.10 × 10² mph (miles per hour). What is the…

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Q: nt bonds. covalent the polarity of the bond using 8 and 8 symbols for the partial cha the direction…

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Q: What is the organic product formed when BzCl reacts with aqueous NaOH. BzCl = benzoyl chloride.

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Q: (1) Briefly state how you could tell FOUR of the following pair of compounds apart by 'H NMR…

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Q: When the Cu²+ concentration is 9.81x10-4 M, the observed cell potential at 298K for an…

A: Given, Cu2+(aq) + Mn(s) ---&gt; Cu(s) + Mn2+(aq) Cell potential (Ecell) = 1.428 V [Cu2+] = 9.81 ×…

Q: ↑ ENERGY -A- B C D E n = infinity = 3 n = 2 n = 1 Match each of the responses below with the correct…

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Q: For the molecule below, predict the expected splitting (multiplicity) for the indicated proton. ▪…

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Q: Provide the correct IUPAC name for the compound shown here. H3C. CI CH3

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Q: Draw the organic reactants forming the following products. A. B. OH and carbon dioxide after…

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Q: QUESTION 5 Consider the following standard reduction half-reactions: A3+ (aq) +3 e-Al (s) E' = -1.66…

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Q: Compare the de Broglie wavelength of a proton moving at 1.30×107 miles per hour (5.81×106 m/s) to…

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Q: Draw the product for the following reactions: excess AICI₂ Cl₂, FeCl3 excess AICI SO3, H₂SO4 OH…

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Q: Which of the following is produced when non-bonding atoms are forced to be in the vicinity of each…

A: non-bonding atoms mean there is no direct bond between those two atoms. vicinity of each other means…

Q: The line emission spectrum of mercury is characterized by lines at: 435.0 nm 546.0 nm 572.0 nm 574.0…

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Q: Identify which of the following molecules are chiral. Compound 1 Compound 3 11... Compound 2…

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Q: Arrange the following structures in decreasing boiling points. HAT [Select] PAT [Select] t…

A: solution: The boiling points of the alkanes increase with molecular size.

Q: Provide the IUPAC name for the compound shown here. SH

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Q: A 1.2000 g sample of (NH4)2Ce(NO3)6 (548.23 g/mol) is dissolved in water and diluted to 100.0 mL.…

A: Given the mass of (NH4)2Ce(NO3)6 dissolved = 1.2000 g  Molar mass of (NH4)2Ce(NO3)6 = 548.23 g/mol…

Q: Show how hydrogen bonding occurs between acetone and water. CH3 C CH3 H₂O

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Q: Supply the IUPAC name for the following compounds. Type your answers on the blank. MAMA MIMI 1. MAMA…

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Q: What functional group is indicated by the IR spectrum below? A) Aldehyde B) Ketone C) Carboxylic…

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Q: What is the activation energy of a reaction that is three times faster at 40.0 °C than it is at 20.0…

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Q: un vall The gas lows you must know 1. How many grams of methane, CH4. Will be produced it a gas has…

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Q: How did the change of stress (adding or removing reactants or products) cause a shift in the…

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Q: Determine which compound listed above has the lowest molar solubility in water. c. Determine which…

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Q: Use the References to access important values if needed for this question. A local FM radio station…

A: Given,  Energy of a photon = 6.26x10-29 kJ   1MHz = 106 s-1  We have to calculate the frequency at…

Q: The Kb value for methylamine, CH3NH2, is 4.2 x 10-4. What is the pH of an aqueous solution for which…

A: Here we are required to find the pH of methylamine

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.