How many moles of calcium atoms do you have if you have 8.99 x 1021 atoms of calcium. (The mass of one mole of calcium is 40.08 g.)

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Q: Grignard reaction experiment 0.6846 g of Mg (molar mass 24.305g / mol 2.06 of 2 bromopropane…

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Q: Predict the product. No need for full mechanism. answer all for upvote Br KNO3, H2SO4 Br NANH2 В.…

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Q: (b) An organic compound (A), having MF C,H120 reduces Fehling solution and Tollens reagent. The…

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Q: For 02 at 298K what is the order of contributions to the total mean energy? А. > В. > (E > (E 3. С.…

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Q: Zn(s) + 2HC1(aq) ZnCl2 (aq) + H2 (g) + 153kJ - For this reaction at 25°C, Change in enthalpy: […

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Q: For items 10-12. The decomposition of NH,Cl (s) at a given temperature of 548 K, the Kp = 0.01072.…

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Q: The capacity of the soils to hold exchangeable cations therefore also depends on Blank 1.

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Q: Br NaCN H30* SOCI2 → D 1. (CH3)2CULI А 2. HаО 1. LIAH4 2. H20 CH3OH, H* РСС 1. DIBAH-H 2. H20 1.…

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Q: 14. The compound below is treated with excessive amount of each reagent. Draw the products for…

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Q: (a)Which compound/s will produce an orange precipitate upon reaction with 2,4-DNPH? (b)Which…

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Q: Given the following: A B он OH

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Q: Calculate the solubility of PbF, in water at 25 °C. You'll find K, data in the ALEKS Data tab. Round…

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Q: (d) What are metastable peaks? Mass spectrum of toluene exhibits two strong peaks at m/e =91 and…

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Q: e number of oxygen atoms

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Q: Test the solubility of 1 mL acetic acid, 0.2 gm benzoic acid and 0.2 gm salicylic acid in 1 mL each…

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Q: A student was tasked to neutralize 33.3 mL solution of 0.136 M H2SO4 (98.079 g/mol) using 0.222 M…

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Q: (d) [Cr(OH);]¿* ions are pale blue-green but chromate (Cr,O,²) ion is an intense yellow in colour.…

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Q: NENe DH Ar Lejormge I Ar Nat DH" tind another 5 resonance

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Q: A sample of seawater contains 3.75 grams of salt for every liter of  solution. Assuming that the…

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Q: Compare between Electron ionization (EI) and Chemical ionization methods.

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Q: show the steps for synthesis of the product using the given starting material.

A: Here we are required to show the step for the formation of the given compound

Q: (b) Differentiate between the following: i) COSY and NOESY ii) COSY 90 and COSY 45

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Q: Which of the following are challenges to using hydrogen fuels cells as clean energ The oxidation of…

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Q: b. Provide mechanisms and/or products for the following transformations. Pd°Ln, Cul, PhBr 1. HBpin,…

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Q: Provide an arrow pushing mechanism for the following reaction. Include protons and each step clearly…

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Q: (b) An organic compound (A), having MF C,H12O reduces Fehling solution and Tollens reagent. The…

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Q: equilibrium constant of the reaction is

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Q: Primary amine Secondary amine Tertiary amine Answer Bank NH2 но. -CH2-CH2-NH2 CH, CH H2 HO но OH

A: Primary amine : amine group attached to further one carbon. Secondary amine: amine group attached to…

Q: 1) Determine the molar mass of an unknown compound if a solution made compound and 20.0 g of…

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Q: What is the major elimination product expected from the following reaction? Br. NaOMe MeOH Select…

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Q: 3. Balance the reaction and then answer the following question: NaOH + H2S04 → H20 + Na2S04 a. How…

A: 1 mole = 6.022×1023 (Avogadro's number)  The mass of one mole of molecules of a substance is called…

Q: The equilibrium constant is 4.5x10-32 for the reaction Ni(CN (aq) ++ NP*(aq) + 4 CN¯ (aq) Calculate…

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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.