Calculate (1) the weight of air removed

Q: Measurements 1. Exercise 3. a. Which 10 measurements shall have uncertainty values based on b.…

A: Accuracy refers to how closely a measurement matches with a correct value. Precision refers to how…

Q: 8.42c Br The transformation above can be performed with some combination of the reagents listed…

A: More hinders base like tbuok give less hinderd alkene

Q: In the standardization of HCl using pure anhydrous sodium carbonate as primary standard for methyl…

A: Here we have to determine the normality of HCl if in a titration 1ml of HCl is equivalent to 0.05 g…

Q: ) If the fotlowing ta ixn, what products are expected? CH CI a) Eg! amts of 1-melbylcyclo hexane 8…

A: Since we know that in E2 elimination reaction Proton and leaving group should be antiperiplanar...

Q: Titration of the I2 produced from 0.1187 g of primary- standard KIO3 (Molar Mass= 214.0o g/mol)…

A: The reactions given are, Given: Mass of KIO3 reacting = 0.1187 g. And volume of Na2S2O3 required =…

Q: Draw the major product of this reaction. Ignore inorganic byproducts. Br

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Q: What are the physical properties of tris (butadiene) molybdenum?

A: Answer: The physical properties of tris (butadiene) molybdenum is as follows.

Q: 3. How many molecules of ethylene diamine will react with Ni(H,O),*? Explain your answer.

A: Answer: Ethylene diamine is a bidentate ligand and water is a monodentate ligand.

Q: Describe how the catalytic mechanism of serine protease enzyme work, for amide hydrolysis

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Q: How many grams of glucose are needed to prepare 400 ml of a 5% glucose solution? O 20g O 30.5g O 21g…

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Q: structure of nucleoside

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Q: 1. A 1.000 g sample containing Na,C,O, (MM=134 mg/mmol) is titrated with 40.00 mL of 0.0200 M KMNO,…

A: It is an application of redox titration where a redox reaction occur between KMnO4 as titrant and…

Q: A 1.00 g sample containing NaHC0, was dissolved in water and titrated using 0.500 M HCI. The sample…

A: Given that: Molarity of HCl = 0.500M Volume of HCl required = 12.5ml = 12.5ml×1L/1000ml = 0.0125L

Q: If 94.9 g of AgNO3 react with 28.6 g of H2SO4 according to this UNBALANCED equation below, what is…

A: Given, AgNO3(aq) + H2SO4(aq) → Ag2SO4(s) + HNO3(aq) Balancing the above equation, 2AgNO3(aq) +…

Q: What is the maximum concentration of Ni²+ that can be added to a 0.00920 M solution of Na2CO3 before…

A: Given: Concentration of Na2CO3 = 0.00920 M Since Na2CO3 is a completely soluble salt. Hence it will…

Q: A. Preparation of reagents Standard HCI solution Compute for the volume of concentrated HCI needed…

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

Q: Solid lead(II) nitrite is slowly added to 125 mL of a 0.220 M ammonium iodide solution until the…

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Q: Write a bond-line formula for each of the following compounds. 1. (R)-2,2-Dimethyl-3-heptanol 2.…

A: The structure of an organic compound is written in the following steps: Determine the number of…

Q: What is the percent ionization of 0.40 M butyric acid (HC4H7O2)? (Ka = 1.48 × 10–5.)

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Q: Using standard heats of formation, determine AH for the following reactions. Report your answers to…

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Q: 1. Do all of the following for each molecule or ion. a. Draw the Lewis Dot structure that minimizes…

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Q: Compute the standard entropy change for the following reaction: CO(g) + 2H2(g) → CH3OH(I) J/K…

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Q: When 22.0 mL of a 3.68x10-4 M silver fluoride solution is combined with 25.0 mL of a (yes or no)…

A: Given: Concenration of AgF = 3.68 × 10-4 M Volume of AgF solution = 22.0 mL. Concentration of NH4Br…

Q: 7.50 g of NHANO3 is dissolved in 100.0 g water. The temperature is measured, and you are able to…

A: Answer: In this question we are dissolving a solid substance ammonium nitrate into water therefore…

Q: Use standard entropies found in Appendix D of the textbook to do the following calculations. X…

A: Formula for absolute entropy S = S0 - R ln (xP/Ptotal) Where R is gas constant = 8.314 J/K/mole; x…

Q: If an arrow ends at a sigma bond, what does the arrow going there imply? A The sigma bond will…

A: In organic chemistry the shifting of electrons is shown by a curved arrow. The direction of arrow…

Q: Vhat is the pOH of a 0.0250 M HI solution? А. 0.944 В. 12.398 С. 1.602

A: Given : Molarity of HI = 0.0250M

Q: Write a balanced equation for the formation reaction of each of the following substances: (a)…

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Q: use an organic reagents no longer than tw or three carbons or benzene to synthesis this compond

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Q: A chemist analyzed four different substances and obtained the given data below. Three of the four…

A: Answer - There is no data given by you in this question - So i will solve this question best of my…

Q: A solution contains 1.21x10-2 M potassium iodide and 8.27x10-3 M sodium bromide. Solid silver…

A: Given: Concentration of KI = 0.0121 M And concentration of NaBr = 0.00827 M

Q: X Incorrect. Use average bond energies to estimate the energy change (in kJ/mol) for the reaction…

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Q: Calculate the molality of a 20.0% by mass ammonium sulfate (NH),SO solution. The density of the…

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Q: Example 3. Calculate the magnetic field streagth required to observe the NMR frequency for fluorine…

A: NMR spectroscopy is a technique used to study the properties of organic compounds. It is a…

Q: Enantiomers 1. Construct a model with a tetrahedral carbon in the center and four different colored…

A: Here we have to explain the existence of plane of symmetry in the structure in which a terahedral…

Q: Hydroxyapatite, Ca,(PO,),(OH),, has a solubility constant of Ksp = 2.34 × 10-5º, and dissociates…

A: The solubility reaction given is,                         Given: [OH- ] = 7.40 × 10-4 M.

Q: Write the reaction for the right half-cell as a reduction and provide its standard reduction…

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Q: Suggest two possible structures of an unsaturated ketone that will be produced from the…

A: IR spectra deals results from the interaction of infrared radiation with matter by absorption. IR…

Q: Give the IUPAC name of the following Benzene derivative

A: The IUPAC name of the compound can be written on the basis of the number of carbon atoms in the main…

Q: 3. What mass of ZnCl2 can be prepared from the reaction of 3.27 grams of zinc with 3.30 grams of…

A: Mass of zinc = 3.27 g mass of HCl = 3.30 g

Q: what is the transition state for the rate-delermining step for the following? 7)…

A: Let us study the reactions.

Q: 3. 2. 1 shift sifı the absolute entropy for Oz (g) is u26 07 Coiole k), what-i3 the AS forithe…

A:

Q: bands to its corresponding interpretation.   Choices: 1. Band A C=C conjugated 2. Band B N-H amide…

A: IR spectroscopy  helps us to find the functional groups of the compounds.

Q: 13. What is the molality of a solution made by dissolving 17.5 g of NaC;H;O2 in 45.0 grams of water?…

A: Molality (m) :-  The number of moles of solute dissolved in one kg of solvent is defined as Molality…

Q: mass

A:

Q: solute 0.147 g C6H7NaO6 molar mass 198.11, dissolves in 50.00 mL, absorbance of solution 0.862,…

A: Given that -  Mass of Solute, C6H7NaO6 = 0.147 g  Molar mass of Solute, C6H7NaO6 = 198.11 g/mol…

Q: The letter labels closest to the points marked with a dot refer specifically to those points. The…

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Q: A 50.00-mL aliquot of 0.1000 M NaOH is titrated with 0.1000 M HCl. Calculate the pH of the solution…

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Q: Provide a systematic name for each of the given compound.

A: The IUPAC name of the compound can be written on the basis of the number of carbon atoms in the main…

Q: Solutions of magnesium sulfate and potassium phosphate react to form a precipitate. What volume, in…

A: Given:: Molarity of MgSO4 = 3.74 mol L-1 Moles of ppt = 63.7 mol Volume of MgSO4= ?

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.