There is a constant current which pasesed on a solution of CuSO for one hour and a 0.040 g of Cu deposited. What is the present current?

Q: The most stable conformation of most aldopyranoses is one in which the largest group, the CH2OH…

A: Answer- The most stable conformation of most aldopyranoses is one in which the largest group, the…

Q: Element Symbol Atomic Number H He Li Be B C 1 2 Number of protons 1 2 Total number of electrons 1 2…

A: Let us consider an atom X. It has atomic number A and mass number Z. It is represented as XZA.…

Q: (a) 0.384 g nickel nitrate (Ni(NO₂)₂) is dissolved in water to make 100.0 mL of solution. Calculate…

A: Answer: In these question we have to find out molar concentration and mass% of Ni(NO3) solution with…

Q: What is the concentration of a reactant after 24.0 s if the initial concentration is 0.150 M and the…

A: Given : time = 24.0 s              Initial concentration = 0.150 M        Rate constant = 5.4 × 10-2…

Q: What orbitals are always involved in resonance? s,p,sp,sp2,sp3

A: Resonance occurs when two or more Lewis structures (also known as contributing structures) are used…

Q: What does Dalton's Law of Partial Pressures state? JPCS 8) Pr.poiwollet A metal tank contains three…

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Q: How can we convert 6 x 102 J to kJ? Please show the significant figures conversion and solution.

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Q: A solution is made using 78.4 g of phenol (MM = 94.11 g/mol) and 90.0 g of acetone (MM = 58.08…

A: Weight of the phenol = 78.4 g molecular weight = 94.11 g/mol no of moles of phenol = 78.4/94.11 mol…

Q: A lithium flame has a characteristic red color due to emissions of wavelength 671 nm. What is the…

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Q: s it possible to draw a resonance structure with the lone pair? What is the hybridization of the…

A: Write down the resonating structure and orbitals are using in this resonance

Q: Complete the table below by deciding whether a precipitate forms when aqueous solutions A and B are…

A: when both water soluble compounds mixed and the expected products are water insoluble. Then…

Q: a) Based on the concept of Valence Bond Theory, predict the hybridization for the metal ion in the…

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Q: 4. How many electrons must a sodium atom lose to achieve a stable configuration?

A: According to the answering guidelines, I'm posting the solution for the first question. Kindly post…

Q: determine the mass percent of napthalene, NaCl, and sand from the following data. Also determine the…

A: Given: Mass of Beaker1 is 45.845. Mass of Beaker1 and sample is 47.500 g. Mass of Beaker1 and sample…

Q: What mass in grams of glucose (MM = 180.2 g/mol) would need to be dissolved in 100.0 g of water to…

A: Answer:- This question is answered by using the simple concept of relative lowering of vapor…

Q: 2+ What is the ppb concentration of a solution that contains 0.250 mg of Pb²+ in 4.00 × 104 g of…

A: mass of solution = mass of solute + mass of solvent ppb = mass of solute in grammass of solution in…

Q: Select all of the following Newman Projections that include an anti conformation. H3C Н H H H H CH3…

A: When the two large groups[(one is on front carbon(dot) and one is on back carbon(circle)] are…

Q: If 20.0 grams of calcium react and form 10.85 grams of calcium nitride what is the percent yield?

A: Given- Mass of calcium =20.0 g Moles of calcium = ( given mass of calcium/molar mass of calcium)…

Q: Tscl pyridine OTS CH3S CH 3

A: The given reactions are examples of substitution reaction where substituted alcohols are leaving…

Q: A nonvolatile solute is dissolved in benzene and the resulting solution has a vapor pressure of 16.7…

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Q: Consider the second-order decomposition of nitroysl chloride: 2NOCI(g) → 2NO(g) + Cl₂(g) At 450 K…

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Q: 13. Name each of the following ethers using the IUPAC Nomenclature System: CHỊCHCH,CH,CH OCH₂CH₂…

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Q: Draw the enolate formed for each carbonyl, and then give the final product for each reaction. HO-…

A: The enolate is only possible for the carbonyl compounds with alpha-hydrogen atoms. All the given…

Q: his graph shows how the vapor pressure of three liquids varies with temperature: vapor pressure,…

A: The vapor pressure-temperature graph of isobutyl alcohol, acetic acid , and ortho-xylene is given as…

Q: Which of the following is the least stable Newman Projection for pentane looking down the indicated…

A: Answer :

Q: What fraction of a reactant has been consumed after 4 half-lives in a first-order reaction?

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Q: 1. Research on the limitation of accuracy of the following instruments: a. analytical balance b.…

A: The difference between an instrument's measured and exact values is how a percentage error is…

Q: List the following compounds in order of least soluble in water to most soluble in water. Least 1 2…

A: Here we have to list the above compounds in order of least soluble to most soluble in water-

Q: Assign Oxidation States To All Elements: 0 Mg(s) Cuo 22 0 + 0₂ (8) 0 0 + → Cu (s) H₂ (8) (s) + +3-2…

A: Electrochemistry is branch of chemistry in which we deal with Oxidation and reduction reaction.…

Q: 8. A sealed canister contains three gasses. Gas A has a partial pressure of 1.4 atm. Gas B has a…

A: Dear student since you have posted multiple questions, As per BARTLEBY QnA guidelines we are allowed…

Q: A 46.81 g46.81 g sample of a substance is initially at 25.7 °C.25.7 °C. After absorbing 1415 J1415 J…

A: Given, heat(q) = 1415 J mass(m) = 46.81 g temperature change(ΔT) = Tfinal - Tinitial = 177.9 °C -…

Q: A 330 mg piece of gold (density = 19.3 gcm3) is hammered into a sheet of gold leaf that has a length…

A: Density of substance is calculated by dividing the given mass with volume  Given density = 19.3…

Q: 5)a) Lattice constant of FCC is 4.25 Å. Determine a) Volume density of atoms b) Surface (or Planar…

A: a)The volume density of atoms in an FCC lattice is given by: n = N / V

Q: بک 7 or

A: Given : structure of reactant and product

Q: 6. Fill in the missing organic products or reactants for the following reactions: ? H₂O, acid H₂O,…

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Q: 1. Calculate the vapor pressure (P₁) and the vapor pressure lowering (AP) for a solution of 95.0g of…

A: Raoult's law : It states that a solvent's partial vapour pressure in a solution is equal to the…

Q: Give the balanced chemical equation when reacting C5H12O with H3O+Cl

A: The reaction between C5H12O (an alcohol) and H3O+ (hydronium ion, a strong acid) in the presence of…

Q: Identify each of the following as a formula of an organic or inorganic compound: a. KCI c. C₂H₂O e.…

A: Inorganic compounds are- (a) KCl       (d) H2SO4     (e) CaCl2

Q: Describe, with using necessary diagrams, the structure and/or microstructure of the following…

A: Solutions- Structure of given materials and applications of their materials and properties.

Q: Consider two initially separate metal blocks of aluminium (M, = 26.98 g/mol) and lead (Mr = 207.19…

A: The total heat absorbed or lost (Q) by a system is expressed by the formula Q = mCp x ∆T.  m = mass…

Q: Calculate the oxidation states of each of the carbon atoms in threonine

A: Oxidation number of each carbon atom can be calculated by considering the oxidation state of…

Q: 9.50 Calculate the first three energy levels, in kJ mol-¹, for an electron in a potential well 0.5…

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Q: point, to 12-6. Neglect heat gained from or lost to the surroundings in this problem. ture of…

A: Answer: This question is based on energy conservation where energy lost by liquid water will be…

Q: The following image displays which of Daltons theories? Atoms of element X 16 X Constant composition…

A: According to the Dalton atomic theory, the atom is the smallest particle of a substance and it…

Q: H 1. BH3 2. H₂O2, NaOH 3. PCC 4. CH3MgBr 5. H3O+ workup Na₂Cr₂O7 H₂SO4, H₂O

A: (a) The alkene gives a hydroboration reaction and forms alcohol according to the anti-Markovnikov…

Q: 1. How many valence electrons does each of the following elements have? a. Helium: b. Calcium: c.…

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Q: Pennies currently in circulation are composed of 97.5 % zinc and 2.5 % copper (by mass). What is the…

A: We know that morality = moles of the solute / kilograms of solvent   as here copper is in less…

Q: Consider these reactions, where M represents a generic metal. 2 M(s) + 6HCl(aq) - - 2 MCI, (aq) +…

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Q: Draw all the lone pairs and p bond electrons in the orbitals provided in the valence bond orbital…

A: Imidazole is the five membered nitrogen containing heterocyclic compound. Imidazole is aromatic…

Q: How many mL of an 1.15 M KOH solution contain 0.665 mol of KOH? 765. mL 0.578 mL 578. mL 0.765 mL…

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