Copper has an isotope with an atomic mass of 62.93 and an abundance of 69.17%. A second isotope has an atomic mass of 64.93 and an abundance of 30.83%. What is the average atomic mass for copper?

Q: component in fertiliser, and is produced according to the reaction equation: 2NH3(g) + CO2(g) →…

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A: Volume of Sr(OH)2 = 15 ml = 15x10-3 L Volume of HCl = 36 ml = 36x10-3 L Molarity of HCl = 0.350 M

Q: The following information is given for magnesium at 1 atm: boiling point = 1090 °C melting point =…

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Q: 17) Predict the major organic product(s) of the following reaction: 1) NaOH, H₂O, no heat H₂C- H₂C=…

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Q: The enzyme that catalyzes this reaction is a(n) H 000 NADH + H+ CH3 Acetaldehyde transferase ligase…

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Q: a) Find the number of unpaired electrons, magnetic moment and crystal field stability energy for…

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Q: Fill in the table below with the correct molecular formula and the correct name of the compound…

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Q: ethyl cinnamate Me H -I H ethyl 3-phenylpropante Me

A: Resonance structure is hybrid structure of the original molecule. Shifting of double bond or lone…

Q: A compound has an ionisable groups with a pKa of 2.6. A 200 mL volume of a 0.15 M solution of this…

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Q: Solid AgNO3 is slowly added to a solution that contains 0.20 M of Cland 0.15 M of Br (assume volume…

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Q: The amino acid structure shown here is known as a(n). H₂N+ A) primary structure. B) secondary…

A: A structure of an amino acid is shown below We have to identify the type of amino acid.

Q: Fill in the nuclide symbol for the missing particle in the following nuclear equation.

A: Nuclear reaction : _?_→e-10 + O818

Q: please help with the remaining questions 8,9

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Q: 5. Below is a primary alcohol or and an aldehyde (of same carbon length). Which is more likely to be…

A: If a molecule can forms hydrogen bond with water molecules then it is soluble in water

Q: a) b) Draw all possible isomers of [Ni(SCN)2(H2O)2], a tetrahedral complex. Clearly show the…

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Q: In each of the following radioactive decay processes, supply the missing particle. 79 As → 79 Se + ?…

A: Nuclear decay refers to the process by which an unstable atomic nucleus emits particles or…

Q: A certain drug has a half-life in the body of 2.5 h. Suppose a patient takes one 300. mg pill at…

A: Time decay refers to the natural process of radioactive decay, as certain unstable atomic nuclei…

Q: 37) Which of the following is a mathematical description of the steady-state assumption? a. [E][S]k1…

A: Steady state approximation is applied on intermediate species.  At steady state approximation:  Rate…

Q: Which of the following is the strongest base? T Toplantılar 3,33 Puan A B D CL CLOA NO3 F

A: A conjugate base is a species formed by the removal of a proton from an acid. The strength of the…

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Q: 3. Provide the products for the following reactions. Provide the correct stereochemistry where…

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Q: A piece of nickel metal (C,-0.444 J/g K) with a mass of 37 g and an initial temperature of 87…

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Q: Complete the following reaction with a major product: d'a= CN H₂N NaBH, Product pool box: OH OH olo…

A: Organic reagents are chemical compounds that undergo the function group transformation.

Q: The enthalpy of sublimation (atomization) of Re is 704 kJ mol–1. Explain why it is significantly…

A: The enthalpy of sublimation, also known as the enthalpy of atomization, is a thermodynamic quantity…

Q: If 3.51 g of CuNO, is dissolved in water to make a 0.300 M solution, what is the volume of the…

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Q: For the reaction N₂(g) +202(g) → 2NO₂(g) AG=108 kJ and AS = -121.6 J/K at 342 K and 1 atm. This…

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Q: Consider the reaction 2N₂(g) + O₂(g) →→2N₂O(g) Use the standard thermodynamic data in the tables…

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Q: Write the cell notation for an electrochemical cell consisting of an anode where Cu (s) is oxidized…

A: Given

Q: 4. Which of the following Lewis structures is INCORRECT? A) B) C) D) F FI B -F1 H HINH 4- H -H [+] H…

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Q: Provide the correct systematic name for the compound shown here H₂C CH3

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Q: Calculate the mass percent by volume of 93.1 g of glucose (C₂H₁₂O6, MM = 180.2 g/mol) in 325 mL of…

A: Mass of solute(glucose)=93.1g volume of the solution=325 mL mass percent=?

Q: Suppose the galvanic cell sketched below is powered by the following reaction: Mg(s)+PdCl₂(aq)…

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Q: 12- The force of attraction between a divalent cation and a divalent anion is 1.67 × 10-8 N. If the…

A: Force of attraction , F= 1.67×10-8 N divalent cation radii, r2+ =0.080 nm divalent anion radii,…

Q: Consider the reaction CO(g) + Cl₂(g) COCI₂(g) Using the standard thermodynamic data in the tables…

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Q: Calculate [H3O+] for a 2.45x10-3 M HBr solution. [H3O+]= M Calculate [H3O+] for a 1.30×10-2 M KOH…

A: [HBr] = 2.45 x 10-3 M  [H3O+] = ?   [KOH] = 1.30 x 10-2 M  [H3O+] = ?

Q: Enter electrons as e The following skeletal oxidation-reduction reaction occurs under acidic…

A: Oxidation is increase in oxidation state or loss of electron.

Q: Which of the following complex does not have any unpaired electrons? [FeC16]4- [Fe(OH2)6]²+…

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Q: The following information is given for silver at 1 atm: boiling point = 2212 °C melting point = 961…

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Q: If 0.75 g of solid sulphuric acid is added to 20.0 mL of water, what is heat of reaction per mole of…

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Group 14 Elements

The following elements come under group 14 of the periodic table.