How many mL of a 2.0 M NaBr solution are needed to make 200.0 mL of 0.50 M NaBr? Select one: O 50 mL O 150 mL O 100 mL O 25 mL

Q: PERIOD Surface area 7. 257.095 Avogadro's Number 1. 5. 258.1 2. 259.101 How many atoms are in 2.63…

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Q: An aerosol can with an internal pressure of 5 atm at an initial temperature of 290K is placed in a…

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Q: Q2. The following molecule is useful in combinatorial synthesis. H₂N NH₂ SOMe HN- a. What is the…

A: Compounds that can't be synthesized by normal traditional synthesis, are synthesized by…

Q: The specific heat capacity of liquid mercury is 0.14 J/g-K. How many kilojoules of heat are needed…

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Q: 1. Calculate the AH°f of C6H12O6(s) from the following data: AH combustion of C6H12O6(s) =…

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Q: 2. In the reaction CH4 +202 CO2 + 2H₂O a. How many grams of methane, CH4, is needed for the complete…

A: A. From the above reaction we see that 2 moles oxygen react with 1 mol methane Hence for 6 moles…

Q: What is the general trend of the boiling point of the hydrides of the chalcogens (H2S, H2Se, H2Te)…

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Q: 3. Which experimental conditions would maximize the yield of choloroethane and minimize the…

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

Q: A sample of Ca(OH)2 with a mass of 0.151 g is dissolved in water so that the volume of the solution…

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Q: (b) In the pH metric titration, calomel and glass electrodes are used for measuring. What are the…

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Q: (e) The mobility of H* ions is very high because of the small size and other reasons. The mobility…

A: Mobility is defined as the distance travelled by ion per second under potential gradient of 1 volt…

Q: [B] [A] Time X у orward reaction is greater. everse reaction is greater. forward and reverse…

A: Rate of reaction is change in concentration of products and reactants in unit time interval.

Q: Draw a Haworth projection of a common cyclic form of this monosaccharide: 0 НО H H OH HỌ-H НО- h…

A: Detail solution is given below

Q: What is the mass percent composition of Chromium (II) bromide? The molar mass of chromium is 52.00…

A: Given data The molar mass of chromium is 52.00 g/mole  and The molar mass of bromine is 79.90…

Q: 2A → B+C The above reaction is run and found to follow first order kinetics with a rate constant of…

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Q: Mangrove bark is extracted by treating the finely ground wood with hot water. The original bark…

A: Given: original bark contains-      7% moisture     33% tannin       20% soluble non-tannin  Residue…

Q: 4. Draw as a polygon structure one of the following steroids: Estradiol…

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Q: What is the fluoride ion selective electrode made of?

A: fluoride ion selective electrode contains a silver/silver chloride(Ag/AgCl)reference

Q: Anilinium chloride (C6H5NH3Cl) is a weak acid (Ka = 2.4 x 10-5). A sample of anilinium chloride…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: . If the 1st statement is false and the 2nd is true C. If the 1st statement is true and the 2nd is…

A: Thermodynamics is branch of chemistry in which we deal with amount of heat evolved or absorbed by…

Q: 3. KMnO4 H₂O ?

A: In this question we have to tell the product of the reaction.

Q: While performing the Dumas experiment, if the outside of the flask were not completely dry (Part I),…

A: Given: The outside of the flask was not completely dry in the Dumas experiment.

Q: What is the total number of moles (n) of electrons exchanged between the oxidizing agent and the…

A: The half cell reactions are : Oxidation : 6 Fe2+ (aq) → 6 Fe3+ (aq) + 6 e- Reduction : Cr2O72-(aq) +…

Q: When heated above 840°C, calcium carbonate decomposes, releasing carbon dioxide gas and leaving…

A: ∆G° of a process can be calculated from ∆H° , ∆S° and temperature by using the formula ∆G° = ∆H° -…

Q: 8) For each of the compounds below, draw a rough estimation of its expected ¹H NMR spectrum. CI Br…

A: 8. Assign a,b,c... to non equivalent hydrogens and calculate the splitting pattern then draw the nmr…

Q: Calculate the AH for the reaction: N₂O4 + CO N₂O + CO₂

A: Given reaction is :  N2O4 (g) + CO (g) --------> N2O (g) + CO2 (g) Calculate the change in…

Q: Consider the corrosion of copper at 30°C using the overall reaction: Cu(s) + 0.5 O2(g) + 2 H3O+(aq)…

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Q: a) Perform a retrosynthetic analysis of the target molecule shown below. Indicate the bond…

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Q: For the chromatogram below, if isocratic elution was employed using methanol: acetonitrile, what can…

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Q: How many 200 mg tablets of medication TZ contain 1.6 g of medication TZ?

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Q: Please explain it. ASAP At a certain temperature, the equilibrium constant for the chemical…

A: All the necessary calculations have been done in the following step.

Q: The solubility (So) of Drug x free acid in water is 0.006M.The total concentration of Drug x (free…

A: Given that -  Concentration of free acid in drug = 0.006M  Concentration of free acid + salt in drug…

Q: Using only ethane and other 2 carbon reagents as the starting material propose a synthesis of OH…

A: Detail synthetic route is given below

Q: If two wavefunctions, a and y, are orthonormal and degenerate, then what is true about linear…

A: Given that the two wavefunction are orthonormal and degenerate.

Q: Which of the Lewis structures shown below has a -2 formal charge on nitrogen? [61] [63] [689] A O…

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Q: A substance that gives up or donates hydrogen ions during a chemical reaction. a. Bronsted-Lowry…

A: We are authorised to solve first three subparts of a question. Please post rest of the questions…

Q: Predict the sign of ΔSsys (positive or negative) combustion of ethane gas. 2C2H6(g) + 7O2(g) →…

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Q: reaction is most likely to be spontaneous when during the course of a reaction:       the energy…

A: For the reaction to be spontaneous, ∆G should be negative. ∆G = ∆H - T∆S

Q: Experiment No 24: Determine the relative strength of two Acids by studying the hydrolysis of ester…

A: Given data:

Q: a. Write the bondline structure of the osazone produced by glucose. b. Identify two monosaccharides…

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Q: When solid calcium carbonate is reacted with aqueous hydrochloric acid, the products of the reaction…

A: Given that -  Temperature = 25°C = 298 K  Mass of calcium carbonate = 25.1 g  Total pressure = 911.0…

Q: 17.65 Predict whether cadmium oxalate, CdC₂04, will pre- cipitate from a solution that is 0.0020 M…

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Q: Find the number of octet electron of the following compound N₂ CH3Br

A: Given compounds are :  a). N2  b). CH3Br  Find the number of octet electrons in these compound = ?…

Q: Write the empirical formula for at least four ionic compounds that could be formed from the…

A: Ionic compounds are formed between two ions ( cation and anion).

Q: Calculate the standard Gibbs free energy change, AG°, in kJ for the following reaction occurring in…

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Q: a. Differentiate Benedict's test from Barfoed's test b. Can the Seliwanoff's test be used to…

A: Chemical testing and analysis are necessary for  understanding the purity and content of chemical…

Q: Calculate the cell emf for the following reaction at 25°C: 2Ag (0.010 M) + H₂(1 atm) → 2Ag(s) +…

A: Given reactions are :  Ag+ + 1e- -------> Ag (s) , E0 = +0.799 V  2H+ + 2e- ---------> H2 (g),…

Q: 6. Draw the products formed upon Hofmann Elimination of the two isomeric amines below. (Excess CH3-I…

A: Detail mechanistic pathway is given below

Q: For the electrochemical cell, Cd(s) | Cd2+ (aq) || Co2(aq) | Co(s), determine the equilibrium…

A: Given,

Q: a solution prepared by dissolving 0.2541g sample of electrolytic iron wire in acid was passed…

A: Given :  Mass of iron wire = 0.2541 gm  Volume of Cr2O7-2 solution = 36.76 ml