Suppose a current of 690 mA is passed through an electroplating cell with an aqueous solution of CuSO4 in the cathode compartment for 45 seconds. Calculate the mass of pure copper deposited on a metal object made into the cathode of the cell. mg of Cu deposited (round to 3 sig figs)

Q: Draw the resonance structure of the following intermediates in the nitration of phenol: OH =

A: The Resonance  structure  are as follows.

Q: Question 26 How many resonance structure(s) is/are present in the conjugate base of the molecule…

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Q: Question 4 Calculate the density of CaO. Given: Ionic radii: Rea² = 0.106 nm; Ro² = 0.132 nm Molar…

A: Formula for thia is, Density = (Mass*No of atoms per unit-call)/(edge-length)3

Q: Calcium citrate (Ca3(C6H5O7)2; MM = 498.46 g/mol), a common food preservative, has a Ksp of 1.12 ×…

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Q: ) the volume in m³, occupied by the water vapor, (b) the amount od (c) the number of ploculor

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Q: Can this be solved more clearly? I do not believe the answer is correct

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Q: Enumerate the classes of organic derivatives of water that are soluble in concentrated H2SO4

A: Definition: The derivates of a compound is produced from the parent compound by replacing one atom…

Q: A photon of energy 2.5×10–18 J has a wavelength of about

A: Given, Energy of a Photon (E) = 2.5 × 10-18 J  Wavelength (λ) = ? Note:  Planck constant (h) = 6.626…

Q: What mass of NaNO3 is required to prepare 400 mL of a 0.45 M solution? 22.1 g 15.3 g 13.5 g 10.5 g

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Q: Which of the following is not a correct mass of one sodium atom? a) 23 amu b) 23 g c) 3.82x10-23 kg…

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Q: Animals cannot convert fatty acids into glucose because * A.acetyl CoA can not be converted to…

A: Kindly get the answer given below.

Q: In Sections 1-7 and 1-9, we considered the electronic structure of [CH₂NH₂]. Predict its…

A: we have to determine the geometry, hybridization and bond angle

Q: Complete the balanced chemical equation for the following reaction between a weak base and a strong…

A: To complete the balanced chemical equation for the following reaction between a weak base and a…

Q: What is the oxidizing agent in the following reaction? Cr₂O+Al+C) + A1,0) 3(x) A Al n D Cr²³) Cr₂0%)

A: Oxidising agent is Al .

Q: PLEASE ANSWER THE THREE  QUESTIONS BELOW  1. What is the freezing point depression when 153 g of…

A: Given, 1. Amount of bromine taken - 153 g Amount of solvent (benzene) - 1000 g 2. Mass of water -…

Q: 4. Calculate the equilibrium concentrations of hydrogen & and iodine that result when 0.050mol HI is…

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Q: At 10.ºC, Kw = 1.14 x 10-15. What is the pH of water at 10.ºC? Choose the closest answer. 3.98…

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Q: Name 10 dissolved substances in water that negatively affect the environment.

A: 10 dissolved substances that create harmful affects in environment are

Q: Half-reaction Reduction of NO3(aq) to NO(g) (nitrate ion) Reduction of Br₂(1) to Braq) (bromide ion)…

A: we  have to write the overall balanced equation for the cell

Q: A student is surprised by her work. She feels that the nuclear binding energy is high for oxygen-16.…

A: According to Einstein's equation,                           Binding energy E = mc2   ------…

Q: A galvanic cell consists of a Ni/Ni²+ half-cell and a Co/Co²+ half-cell with initial concentrations:…

A: Given-> E°Ni2+/Ni = -0.25 V E°Co2+/Co = -0.28 V

Q: Сalculate ∆H° for the reaction: N2O(g) + 1/2 O2(g) → 2NO(g)

A:

Q: Lauryl alcohol is obtained from coconut oil and is used to make detergents. A solution of 5.00g of…

A: Solution - According to the question - Given -

Q: What is the pH of a 0.00205 M solution of NaOH?

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Q: Consider the reaction below. Identify the acid and by what definition: CH3OH + NaH CH₂O Na a. H2;…

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Q: Half-reaction E° (V) 0.96 Reduction of NO3(aq) to NO(g) (nitrate ion) 1.065 Reduction of Br₂(1) to…

A: we have to write overall cell reaction and calculate the value of cell potential

Q: This structure is the correct form at pH 10 and higher. NH₂ B B NH₂ NH A NH₂ с O True False НО HN HO…

A: Hey there! Answer: True

Q: Question 1 Calculate the APF for the bcc metal structure.

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: When mixing 40 mg of a medication in 100 ml total solution, the resulting strength is ..?

A: Given.  Mass of medication in mg = 40 mg  Volume of solution in mL = 100 mL  Find the strength of…

Q: What volume (in mL) of water must you add to 25.0 mL of a 0.250 M NaBr solution to produce a 0.0185…

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Q: A concentration cell consists of two Ni/Ni²+ electrodes. One electrode contains 0.15 M Ni²+ and the…

A: we have to write the overall redox reaction for the cell

Q: Sucrose consists of " Glucose + glucose Glucose + mannose Glucose + galactose Glucose + fructose

A:

Q: what is the heat formation of electron?

A: Heat formation of electron  is also called as "electron gain enthalpy" .

Q: Directions: Cite the use of the given polymers. Write your answer on a separate sheet of paper. 1.…

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Q: 3. Consider the HCN-KCN buffer system, which species would react if a dilute aqueous HBr solution…

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Q: 7 Compound 5 can be made from compound 1 in the following reaction sequence. Br OH step 2 step 1 +…

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Q: Methane-producing bacteria convert liquid acetic acid (CH3CO₂H) into CO₂(g) and CH₂(g). ΔΗ, Ο…

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Q: 2. Write the product and the mechanism for reaction. Write the names of starting material and…

A: The naming of an organic compound can be done with help of rules of international union of pure and…

Q: What is the conjugated base of this equation?

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Q: Assume you have a buffer made from HF as shown below. If a small amount of NaOH was added to the…

A: ->Buffer -> HF/F- Weak acid = HF Conjugate base = F-

Q: In step 1, we found that there are 3.25 moles of ethanol present in the 1.00 L of solution. The…

A: Given, Moles of ethanol=3.25 moles  Volume=1.00 L  Molar mass of ethanol=46.07 g mol-1 Mass of…

Q: The reaction. pyruvate + NADH+H. lactate + NAD* is catalyzed by the enzyme lacate dehydrogenase.…

A: If the concentration of Pyruvate is double then no effect will be shown because rate of reaction…

Q: Amino acid metabolism differs from that of carbohydrates and Fats in that " (a) There is no storage…

A: Amino acid metabolism differs from that of carbohydrates and fats in that = (a) There is no storage…

Q: Q1. Use VSEPR theory to predict the molecular shape of the following molecules and calculate the…

A: According to the valence shell electron pair repulsion theory, Molecular shape of Molecule depends…

Q: Strontium-89 chloride is in a class of drugs known as radioisotopes. It delivers radiation to cancer…

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Q: Draw the structures of the formed dipeptide when aspartic acid reacts with serine. Is there more…

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Q: What mass of Na₂CO3 will react completely with 18.9 mL of 2.6 mol/L solution of Mg(ClO3)2?

A: The answer to the following question is-

Q: 2. Ate Shawol and Concertina performed electrolysis to determine the identity of an unknown metal X.…

A: “Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: The absorption spectrum of [Ni(NH3)6]2+ in water shows broad absorption with Amax 370, 625, and 1000…

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Q: What is the boiling point elevation when 12.0 g of iodine is dissolved in 100 g of carbon…

A: