For the reaction 2 A + 3 B → 4 D + 5 E, how is the rate of reaction expressed in terms of rate of disappearance of B?

Q: What is the concentration of Ca²+ in solution that is prepared by mixing 50 ml 0.4 M Ca²+ with 100…

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Q: Q3/ Complete the following reactions : NaOH 1) 2-pantanone benzaldehyd + NaOH 2) hexanal +…

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Q: 9. Give the IUPAC name for the following compound. H3C CH3 H3C -CH3 CH3

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Q: Q2. For the compounds below: Draw an appropriate Lewis structure, calculate the formal charge on…

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Q: Acetic acid dissolves in water as a weak acid. Calculate the mole fraction of acetic acid in the…

A: Mole fraction is the ratio of number of moles of specific compound in solution to the total moles in…

Q: Assessment Directions: Write the letter of the CORRECT answer on a separate sheet of paper. 1. Which…

A: As per our guidelines, we are supposed to answer only one question with three sub parts. Kindly…

Q: 9. A city's water supply is fluoridated by adding NaF. The desired concentration of F is 1.6 ppm.…

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Q: PLEASE ANSWER THE THREE QUESTIONS BELOW THANK YOU  1. Vinegar is a solution of acetic acid. What is…

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Q: What volume (in mL) of water must you add to 25.0 mL of a 0.250 M NaBr solution to produce a 0.0185…

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Q: 1. A 0.0250 M Ca(X)2 has a pH of 8.049. Ca(X)2 is composed of a Ca²+ cation and an unknown anion X,…

A: Given,  Molarity of Ca(X)2 = 0.0250 M.  pH of the salt solution = 8.049. The Kb of X- is :

Q: 2. A water tank contains 7.50 x 10³g water. Will the addition of 1.20 x 10³g ethylene glycol…

A: Weight of water = 7.50 ×103g = 7.50 Kg Weight of ethylene glycol added = 1.20 ×103g =1.20Kg Molar…

Q: S + 6 HNO3 --> H₂SO4 + 6 NO2 + 2 H₂O In the above equation how many moles of water can be made when…

A: The given balanced chemical equation is S + 6 HNO3 → H2SO4 + 6 NO2 + 2 H2O The number of moles water…

Q: 2. Ate Shawol and Concertina performed electrolysis to determine the identity of an unknown metal X.…

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Q: Standard vinegar solutions are about 5% acetic acid by mass. What is the molarity of a 5% vinegar…

A: Vinegar is aqueous solution which contains small amount of acetic acid. Generally vinegar is used as…

Q: 11. Draw all the conformations for the rotation about C2- C3 bond 2,3-dimethylbutane using Newman…

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Q: 6. Commercially available concentrated hydrochloric acid is 37.0% w/w HCI. Its density is 1.18 g/mL.…

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Q: What does the "alpha" indicate in "α-D-ribofuranose"?   It is the first anomeric form. The sugar…

A: Carbohydrates can be defined as the organic compounds that are present in food.

Q: 6. answer correctly or I will leave negative remarks.

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Q: Overall question: What is the molality of a 3.25 M aqueous solution of ethanol, C2H5OH? From…

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Q: You prepare a solution of protein and its ligand where the initial concentrations are [Protein] = 10…

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Q: 7. The density of concentrated ammonia, which is 28.0% w/w NH3, is 0.899 g/m What volume of this…

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Q: In Sections 1-7 and 1-9, we considered the electronic structure of [CH₂NH₂]. Predict its…

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Q: Standard reduction potential Zn²+ (aq) + 2e → Zn (s) O₂(g) + 4H+ + 4e →2H₂O(l) Calculate Eºcell for…

A: Since O2(g) has higher reduction potential of 1.066 V, it will undergo reduction to H2O(l), and…

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Q: Nucleophilic Substitution and Elimination. A Worksheet Lab. Pre-Lab 1. Identify the following…

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Q: STARTING AMOUNT Question 24 of 24 A solution of phosphoric acid (HPO4) with a known concentration of…

A: The volume of NaOH required can be calculated as follows

Q: 2. Ate Shawol and Concertina performed electrolysis to determine the identity of an unknown metal X.…

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Q: Enumerate the classes of organic derivatives of water that are soluble in concentrated H2SO4…

A: Solutions-  The classes of organic derivatives of water is all alcohols.

Q: A student is surprised by her work. She feels that the nuclear binding energy is high for oxygen-16.…

A: According to Einstein's equation,                           Binding energy E = mc2   ------…

Q: Suppose a current of 690 mA is passed through an electroplating cell with an aqueous solution of…

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Q: ) the volume in m³, occupied by the water vapor, (b) the amount od (c) the number of ploculor

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Q: Calcium phosphate (Ca3(PO4)2; MM = 310.18 g/mol), a large component of human bones and teeth, has a…

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Q: Which of the following is not a correct mass of one sodium atom? a) 23 amu b) 23 g c) 3.82x10-23 kg…

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Q: The detection limits reported for Aluminum with ICP-AES and GFAAS are 2 ppb and 5 pg, respectively.…

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Q: 4. Calculate the equilibrium concentrations of hydrogen & and iodine that result when 0.050mol HI is…

A: Equilibrium constant KC is the ratio of the concentrations of the products to that of the reactants…

Q: After preparing the buffer, Joey decided to determine the buffer capacity of the solution by…

A: Given :  Volume of buffer solution = 75.0 ml  Molarity of NaOH solution = 0.500 M  Initial pH…

Q: A solution is made from 19.10 g of an unknown solute in 500. grams of water. The solution has a…

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Q: Calcium citrate (Ca3(C6H507)2: MM = 498.46 g/mol), a common food preservative, has a Ksp of 1.12 x…

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Q: 4. a)Nucleophiles. Define a "nucleophile" in organic chemistry? b) Identifying nucleophiles.…

A: Acid can be defined as the species that can give hydrogen ions in an aqueous solution.

Q: Under anaerobic conditions the glycolysis one mole of glucose yields_ moles of ATP. Two O Four One…

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Q: When octane, C8H18, is burned in the presence of excess O2, the usual products of carbon dioxide,…

A: The no of moles of the substance is the ratio of the given mass of that substance to that of molar…

Q: ) Show the equation and describes Faradays law which relates moles of analyte to charge in coulombs…

A: #(d): Faraday's first law describes the relation between the moles of the analyte deposited at the…

Q: Ion exchange chromatography consists of?   i. stationary phase with a matrix of charged ionizable…

A: Ion exchange chromatography consists of? = D. i and ii  i. stationary phase with a matrix of charged…

Q: Which of the following is a keto-pentose?* Н CH₂OH Н. НО c=0 ОН Н НО- O A О в O c OD Н HO-H CH₂OH…

A: Which of the following is a keto-pentose? = A (L-Xylulose)

Q: A sample of pentanol, C5H120, contains 1.69 mol of the compound. Determine the amount (in mol) of…

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Q: system, ncentration of the H3PO4 will decrease upon addition of KOH. ncentration of the H₂PO4 will…

A: Acidic Buffer solution is the mixture of weak Acid and its conjugate base.  When KOH is added to…

Q: Consider the reaction below. Identify the acid and by what definition: CH3OH + NaH CH₂O Na a. H2;…

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Q: 1. What is the most important attractive forces present in each of these solids: a.) HCN…

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Q: What generalization can be made for a substance to be soluble in concentrated H2SO4?

A: Hey there! Generally the compounds, in which the functional groups, if show reactivity with…

Q: Write the balanced NET IONIC equation for the reaction that occurs when perchloric acid and sodium…

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