Silver has just two naturally occuring isotopes: 107Ag with a fractional abundance of 0.51839 and 109Ag with a mass of 108.904752 amu. If the weighted atomic mass for silver on earth is 107.8682 amu, what is the mass of the most common isotope?

Q: explain the effect on equilibrium of  i) increasing temperature  ii) increasing pressure iii)…

A: C6H12O6(aq) + 6O2(g) <=>  6CO2(g) + 6H2O(l)ΔH = –2802.7 kJ mol –1 where -ve sign of ∆H…

Q: A chemist prepares a mixture of DMSO and water at a temperature of 26.0 °C. He measures out 37.8 mL…

A: Volume % of a component in a solution= ( Volume of component/ Volume of solution) x 100

Q: Consider these metal ion/metal standard reduction potentials Cd2+ (aq)| Cd(s): -0.40 V; Zn2+ (aq)|…

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Q: 3. Use curved arrows to propose a mechanism for the following reaction. ox HCI

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Q: Which of the following aqueous solutions are good buffer systems? (Select all that apply.) 0.24 M…

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Q: Consider the reaction described by the equation C₂H₂Br₂(aq) + 3 I¯(aq) - C₂H₂(g) + 2 Br (aq) +…

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Q: 6. What is the proper method of washing the glassware used in titration (the burette for example)?…

A: Washing of glassware during titration: In titration we require burette, pipette, conical flask etc.…

Q: At 25 °C a solution has a pOH of 2.33. What is the [H3O + ] for the solution? Is this solution…

A: pOH = 2.33 [H3O+]=? Nature of  solution = ?

Q: Using these metal ion/metal standard reduction potentials: Cd2+ (aq)| Cd(s): -0.36 V; Zn2+ (aq)|…

A: The standard half cell reactions are    Cu+2 (aq)+ 2 e− ⇌ Cu (s)    E° = 0.29 V    Cd+2 (aq)+ 2 e− ⇌…

Q: Consider the reaction of 1,2-epoxy-1-methylcyclopentane below. It can be reacted with NaOCH3 to form…

A: We know strong nucleophile favours SN2 reaction so attack from less hindered side with inversion in…

Q: [Review Topics] [References] What will the volume of a sample be if 301 mL of an ideal gas at 25 °C…

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Q: Room Temperature Reactant Trial Number Mass of reactant (from data) 26.0°C Mg 1 0.2578 g Mg 2 0.2551…

A: qwater =  (mass of water used) x 4.184 J/g-ºC x (Tf – Ti) qcalorimeter =  10.0 J/ºC x (Tf – Ti) Mass…

Q: A chemical process has an enthalpy change of AH = -43.6 kJ mol¹ and an entropy change of AS = 238.0…

A: ∆G = ∆H - T∆S  T = Temperature

Q: 9.48 Calculate the [H3O+] for each of the following mea- surements of pH: a. hand soap, pH 9.5 b.…

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Q: For the reaction below, determine the stoichiometric coefficient on OH - in the balanced redox…

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Q: The Köp of silver bromide is 5.4 × 10-13 at 298 K. sp AgBr(s)= Ag*(aq)+Br (aq) What is A,Gᵒ? (R =…

A: The given reaction is,

Q: Complete the mechanism for the keto-enol tautomerization shown using bonds, charges, nonbonding…

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Q: Answer the questions in the table below about this molecule: HO OH What is this molecule's chemical…

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Q: A chemistry graduate student is given 300. mL of a 1.20M pyridine (CHN) solution. Pyridine is a weak…

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Q: Name the peptide below using their single-letter labels (example: HCFAR) OH NH₂ Glycine (Gly; G) HO…

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Q: Carbon tetrachloride can be produced by the following reaction: C5₂(g) + 3Cl₂(g) + S₂Cl₂(g) + CClag)…

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Q: Chromate ion is added to a saturated solution of Ag2CrO4 to reach 0.78 M CrO42–. Calculate the final…

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Q: Next, 5.360 g of acetylene (C₂H₂) are put into the "bomb" and similarly completely burned in an…

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Q: The enthalpy of solution (AH) of NaNO, is 20.4 kJ/mol. If 4.30 g NaNO, is dissolved in enough water…

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Q: Draw the major organic product(s) of the following reaction. CH3 H3C-C-CI CH3 + H₂O

A: The question is based on organic reactions.     we need to identify the product formed and explain…

Q: 4. During space travel, oxygen O₂ is used for astronauts' breathing and as a fuel. It is constantly…

A: This question is from Electrochemistry . Application of Nernst Equation .

Q: Using the enthalpies of reaction computed in the lab and the value given for the enthalpy of…

A: To determine: (1) (2) % error

Q: A 23.0 ml solution of 0.140 M CH,COOH is titrated with a 0.250 M KOH solution. Calculate the pH…

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Q: An environmental study was performed to measure the transport of a DDT (a banned pesticide)…

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Q: How are the following two compounds related to each other? H H₂C H3 CH3 H CH3 a) They are…

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Q: Identify the oxidizing agent in the reaction: 3 Mg(s) + 2NO3(aq) + 8 H*(aq) -3 NO3 (aq) Mg2+ (aq)…

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Q: 7:49 PM Mon *** Question 8 of 14 For the reaction 2 A (g) →B (g), Kp = 0.00101 at 298 K. When AG =…

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Q: QUESTION 6 What Citric Acid Cycle intermediate is derived from the following amino acid? HO Citrate…

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Q: The  Eocell for the following reaction is 0.96V. Given this, what is the voltage of a cell that…

A: To find the voltage of the given cell, we can use the Nernst equation:   Ecell = E°cell - (RT/nF)…

Q: A voltaic cell is constructed, based on the following half reactions: Cu+ (aq) + e- -> Cu (s) I2…

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Q: The half-lives of different radioisotopes are given in the table. Half-life (min) Radioisotope…

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Q: Metal Which of the following ions is the strongest oxidizing agent? Question 9 of 17 Lithium Li(s) →…

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Q: O A B E Ph Ph B Ph NaOEt Product 1 Ph Ph D Ph E OH

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Q: Determine the final pH for Solution A after mixing 500mL 0.2M HCl and 300ml 0.6M HCl.

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Q: Br 1.2 Li, Et₂0 2. O 3. H3O+

A: Here , organo lithium reagents are more reactive towards Carbonyl compounds.

Q: Propose a reason for why mercury has such strong cohesion and almost no adhesion. Please explain…

A: Cohesive force is the force that attracts molecules of the same substance. Adhesive force is the…

Q: What is the final ph of a solution obtained by mixing 100ml of 0.15 M NH3 with 75 ml of 0.10 M HCl?…

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Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.