The work function energy for copper is 7.56 x 10-19 J. What is the longest wavelength of the radiation that could eject an electron from copper? [?] nm

Q: 25 grams of NaCl is dissolved in 175 g of water. Calculate the percent by weight of NaCl in the…

A: We can calculate the weight percentage of NaCl in the solution by using the equation.   Weight % for…

Q: 2. Calculate the Molarity of 0.917 mole of NaCl in 0.500 L of solution.

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Q: Chloromethane forms by the reaction given below. At 1500 K, Kp = 1.63104. In the reaction mixture, P…

A: Qp and Kp is used to determine the direction of reversible reaction.

Q: Create a 30 item test about organic reactions, naming alkenes, and naming alkynes. Provide the…

A: Carry out the following conversions: 1. Ans: 2. Ans: 3. Ans: 4. Ans: 5. Ans: 6. Ans: 7. Ans: 8. Ans:…

Q: A 2.036 g of copper (II) salt was dissolved in a 250 mL volumetric flask. A 25 mL aliquot of the…

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Q: Chloromethane forms by the reaction given below. At 1500 K, Kp = 1.63104. In the reaction mixture, P…

A: Given that:  CH4(g) + Cl2(g) <.....> CH3Cl(g) + HCl(g) PCH4 = 0.13 atm PCl2 = 0.035 atm PCH3Cl…

Q: Q8. What is the A of light that is emitted when an excited electron in the hydrogen atom falls from…

A: The emission spectrum of the atomic hydrogen atom has been divided into a number of spectral series,…

Q: What is the pH of a solution consisting of 0.70 M HC2H3O2 and 0.60 M NaC2H3O2 ? The Ka of HC,H3O2 is…

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Q: Q7. The correct order of increasing in the first ionization energy: A.B< Be < N<O B. Be <B<N<O C.B<…

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Q: Complete the table. [K: /18] Type of What type of reaction is involved in the If there is a reverse…

A: The answer is as follows:

Q: 1.00 L of hydrochloric acid is prepared and has a final pH of 1.045. What mass of HCl) is dissolved?…

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Q: At the equivalence point, you had equal number of moles of acid and base, and the acid was…

A: In part b, volume of NaOH added is not given. So, we are solving just the first part. Please post…

Q: The decomposition of HI at low temperature was studied by injecting 2.50 mol of HI into a 10.32-L…

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Q: What process is required to purify the ethanol from the fermented broth? Extraction Distillation…

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Q: 1. Are the materials that have a large particle size of their atoms diffusion through it faster, or…

A: Diffusion is the migration of atoms or molecules from higher concentration to lower concentration.

Q: 30. Acid HP and acid HQ are titrated with standardized NaOH, and their titration curves are shown in…

A: Here we have solve the following given questions from the given titration curve of two weak acid HP…

Q: An indicator of pKa = 6.5 can be used for the titration of a reaction that reaches equilibrium at…

A: Indicator in an acid base titration helps to identify the equivalence or end point of titration. It…

Q: Calculate the molality of a 0.410 molar aqueous glucose solution whose density is 1.15 g/mol

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Q: A Calculate the pH of an aqueous solution that contains 6.5 x 10 M Ca(CH)z at 25 °C. Provide your…

A: A. Given Concentration of Ca(OH)2 = 6.5×10-3 M Concentration of OH- ions = 2× Concentration of…

Q: What are the possible reactions for the reaction of Aluminum with HCL and Water ? And what is the…

A: Aluminum reacts with HCl and water.We have to write the possible reactions and identify the…

Q: Q9. When the following equation is balanced in acidic solution, the coefficients for H,0, 50,' and…

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Q: 4.The addition of a catalyst to a system at equilibrium will increase the rate of...     only the…

A: A catalyst is a substance which accelerates a chemical reaction. The catalyst provides an…

Q: In which of the following pairs of alkanes are the two members of the pair constitutional isomers?…

A: In organic chemistry, constitutional isomers or structural isomers are compounds which have the same…

Q: include the state of each species: (s), (1), (g), or (aq). 3. CH3CH2OH + KMnO4 → Mn02 + CH3COO'…

A: Here we are required to balance the redox reaction .

Q: Expt. 8: VOLUMETRIC DETERMINATION OF CALCIUM AS OXALATE Sample preparation: the sample is a solution…

A: In this experiment, we are doing volumetric determination of calcium oxalate.

Q: The pH of a solution is 5.64. What is its hydrogen ion concentration ([H+]) in mol/L

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Q: What element has 3 neutron 4 electrons and 4 protons

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Q: The ionization constant of water at a certain temperature is 1.7 x 10-14. Calculate the pH of water…

A: given, the ionisation constant of water, Kw = 1.7×10-14 using, Kw = [H+][OH-]

Q: 12. An unknown precipitate of sulfide from the Group II cations dissolves upon the addition of 20…

A: In the given question we have to find the unknown cation by finding out the unknown precipitate of…

Q: N OH

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Q: Use standard enthalpy and entropy data from Appendix G to calculate the standard free energy change…

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Q: Identify whether the statements are true or false In a galvanic cell, oxidation must always occur…

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Q: Half Reaction: 2 Br- = Br2 + 2e- volume of solution: 30 mL reaction time: 180 seconds measured…

A: Given,  Half Reaction: 2 Br- ----------&gt; Br2 + 2e-  Volume of solution = 30 mL Reaction time = t…

Q: Co(NO3)2 (aq) NaOH (aq) complete ionic equation: net ionic equation:

A: Given,  Co(NO3)2 + NaOH ----------&gt;

Q: C. If in this case compound EZ is 70% dissociated into E* and Z", determine the freezing point of…

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Q: The following sequence of steps has been proposed for the overall reaction between H2 and Br2 to…

A: Given,  The  overall reaction between H2 and Br2 to form HBr: from  1) Br2(g)----------&gt;2Br(g)…

Q: A chemist designs a galvanic cell that uses these two half-reactions: half-reaction standard…

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Q: Match each structure to their contribution to the resonance hybrid A В C D H Largest Contributor […

A: Resonance structure: If the Lewis structure of a molecule or ion cannot explain by a single…

Q: of the 4ollow Compounds must every more than one caebor Sketones O Aldenydes ATCohols

A: Organic compounds can be defined as the compounds that contain carbon and hydrogen atoms in a…

Q: Please give the reactions of the following of its esterification reaction: 1. benzoic acid 2.…

A: In organic chemistry esterification is chemical reaction in which two chemical ( generally one is…

Q: Rank the following aqueous solutions from the highest (1) to lowest osmotic pressure (4). 0.01 M…

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Q: The reverse aldol condensation is at the heart of the preparatory phase of glycolysis. A) Why is…

A: Aldol condensation is the condensation between two carbonyl compounds to give a β-hydroxy carbonyl…

Q: A 0.8250 g of soda ash sample was dissolved in distilled H O and diluted to 250-mL using a…

A: Please find the below attachment.

Q: Which of the following statements is CORRECT? Standard Reduction Potential (in volts) Mg2*/Mg -2.37…

A: Reducing agent is that which reduces the other and oxidise itself.

Q: Q4) Explain the alloy formation process and the different between Binary and Triple or (Ternary)…

A: An alloy is a mixture of chemical elements of which at least one is a metal. An alloy is a metal…

Q: Given the reaction: N2(g) + O2(g) + 186.2 kJ 2 NO(g) Which change would cause an immediate increase…

A: Le Chatelier's principle: This principle is used to predict the effect of a change in conditions on…

Q: A chemical engineer is studying the two reactions shown in the table below. In each case, she fills…

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Q: Q1. Which of the following is a non-electrolyte? A. Nal 8. C,H,OH C. AICI, D. MnCl,

A: The substance which dissociates in to ions when dissolved in water is known as electrolyte and the…

Q: A KO B. CH. C co, D. P,O, 02 How many grams of Ca(OH), are required to neutralize 1000 L of 0…

A: Oxidation can be defined as the process of loss of electrons and reduction is a process of gain of…

Q: Draw and name compounds that meet the following descriptions: a. Two primary, 2 secondary, and 2…

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Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.