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Q: Calculate the Concentration of drug plasma at time zero

A: Concentration of drug given at different time , so  half life of drug depend concentration of drug

Q: Answer the following and show the complete solution and formula used:

A: The answer is 2400 litres

Q: How to increase the concentration of KCL saline solution from 10% to 20%

A: Ad a suitable amount of KCl to increase its percentage concentration in the solution.

Q: Calculate the molar mass of the unknown acid. Be sure your answer has the correct number of signific...

A: We have to equate no. of moles of acid and base

Q: Q4. Hydrochloric acid solution with 0.015 M, if you take 50 ml from it and diluted by water to 150 m...

A: We have to find the concentration of H+ ions before and after the dilution. Then we can simply calcu...

Q: A sphere has a diameter (d) of 25 mm. Find the volumè (V) cf sphere in mL. 4 (For sphere: V =tr³ and...

A: we have to apply this volume formula and take r=12.5 mm

Q: The K eq for the equilibrium below is 50.  H 2 (g) + I 2 (g)   2HI (g)What is the value of K eq for ...

A: The second reaction is the reverse of reaction first  2HI (g)   H 2 (g) + I 2 (g)  So K2(equilb) = 1...

Q: Describe the reaction/process and draw a simple diagram including (a) anode and cathode, (b) directi...

A: Electrorefining is the process of purifying a metal that has been extracted from its ore by using el...

Q: a) What is the solubility of copper(II) iodate, Cu(IO;)2? Ksn. = 1.4 x 107 at 25 °C b) Will the solu...

A: The molar solubility of copper (II) iodate is; CuIO32↔Cu2++2IO3-                         s          ...

Q: What is lithium?

A: Pure substances that are made up entirely of atoms and have the same number of protons in their nucl...

Q: Analysis of a sample of polyacrylonitrile shows that there are six lengths of chains, with the numbe...

A: The Weight average molecular weight of a polymer is given by--------------- Mw = ∑i = 0∞Ni Mi2∑i = 0...

Q: QI// Prepare 2-methyl butane from 1-Chloro-2-butane by reduction alkyl halide ; using any material a...

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Q: QI/ A fuel contains by mass 88% C, 8% H, 1% S and 3% ash (silica). Calculate: i. The stoichiometric ...

A: 3. СОMBUSTIОN  BY  MАSSThe  оnly  rule  tо  be  оbserved  in  deduсing  the  quаntities  оf  eасh  s...

Q: Given a gas wirh a pressure of 0.380 atm, convert this to units of torr.

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Q: Which of the following represents the correct balanced equation for the dissolution reaction of Na3P...

A: Solid Na3PO4 dissociates into sodium cation and phosphate anion.

Q: iher from a to a volume o nperature dur s constant. Fi

A: ∆S = 2.303 • n • R • log [ V2 / V1 ]  Where : V2 = Final volume = 35L  V1 = initial volume = 20L  n ...

Q: What would be the limiting reactant? Enter its chemical formula below.

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Q: Q2/ Indicate which is the correct name that related to the correct chemical structure below ? Chosen...

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Q: Q.2: Calculate the longest wavelength for electron revolving in the fifth excited silicon atom, drop...

A: En = -13.6 z2/n2 e.v  

Q: What volume (in mL) of a 1.0 M solution of imidazolium chloride must be added to a 500 mL solution o...

A: Buffer solutions are the solutions which counter the pH change on addition of small amount of acid o...

Q: What is Molecular?  Example please

A: Atoms are indivisible smallest particles, which are not very active in general conditions. Due to th...

Q: What type of reaction is 2KI − > 2K + I2

A: Ans. The given reaction  2KI ------->> 2K + I2 This is redox type reaction in which  2I- oxidi...

Q: A chemist is studying the following equilibirum, which has the given equilibrium constant at a certa...

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Q: In the box below draw the tetrahedral representation of the R enantiomer of the amino acid cysteine,...

A: R enantiomer of cysteine is

Q: Determine the pH of a buffer that is 0.95 M HBrO and 0.68 M KBrO. The value of pKa for HBrO is 8.68....

A: Use acidic buffer's pH formula with the given data to find pH of the given solution.

Q: Answer this easy question

A: The magnitude of the equilibrium constant says a lot about the commencement of the reaction directio...

Q: In a distillation of a mixture of acetone (bp. 56°C and dichloromethane bp. 40°C), a fraction averag...

A: Percentage of acetone in  the fraction depends on distance of average temperature from the boiling p...

Q: Copper(II) ions can be displaced by aluminum metal: 3 CuSO4(aq) + 2 Al(s) → Al2(SO4)3(aq) + 3 Cu(s) ...

A: Part A Volume of CuSO4 = 66.6 mL = 0.0666L Concentration = 0.610 M Moles = (0.610×0.0666)moles = 0.0...

Q: Q2- A 30.0 mL H2C2O4 acidified solution, was treated with 25.0 mL of 0.102 M KMNO4 solution. The rea...

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Q: Q.1: The force constant of the bond in HCl is (516 N/m). Assuming the value of the force constant do...

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Q: If the initial pressures of S2Cl2 and CCl4 were both 0.35 atm and there was noCS2 or Cl2 the total p...

A: The given reaction and its equilibrium constant is S2Cl2(g) + CCl4(g) ⇌ CS2(g) + 3Cl2(g)Kp = PCS2PCl...

Q: Calculate the final molarity of ammonium cation in the solution. You can assume the volume of the so...

A: See answer below.

Q: 1. Which of the following electromagnetic waves is given off as heat? A. Radio Waves B. Infrared Ray...

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Q: Physical Chemistry Q1) In this reaction CH;COOCH, + H,0 –→ CH,COOH + CH,OH Note that the rate and or...

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Q: Chemistry Question

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Q: How many moles of nitrogen gas would be produced if 9.29 moles of copper(II) oxide were reacted with...

A: The question is based on the concept of Reaction Stoichiometry. we have been given the moles of limi...

Q: We have a polyethylene sample containing 4000 chains with molecular weights between 0 and 5000 g/mol...

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Q: Crude oil containing 5.0 mole per cent of gasoline is stripped by running the crude down a columnup ...

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Q: Give the electron counts, formal oxidation states, and dn configurations of the following transition...

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

Q: What is the difference between pH 5 and pH 9 in terms of hydrogen ion concentration? Show your work.

A: pH is short for potenz hydrogen, i.e., power of hydrogen. pH ranges from 0 to 14, where 0-6.9 is aci...

Q: 1/ Prepare 2-methyl butane from 1-Chloro-2-butane by reduction alkyl halide ; using any material and...

A: This is the organic reaction. Mechanism of the reaction is given by 

Q: Which combination(s) of alkyl bromide and epoxide can be used to prepare the following product by ad...

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Q: [References Follow the flow of electrons indicated by the curved arrows in the following polar react...

A: In this reaction oh- attack on hydrogen. Hydrogen leaves it's electron and  formation of double bond...

Q: Rank the following from most to least acidic. Rank from most to least acidic. To rank items as equiv...

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Q: CH3 CH, CH, X3 hv CH or it HC CHS HC CH HyC X-F,CI, Br or I Summarize the effect of each factor on t...

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Q: Calculate the internal energy change (ΔE) for a system undergoing an exothermic process in which 24....

A: Given in the question:heat flow out of system, therefored,∆Q=-24.9 kJWork is done on the system,∆W=1...

Q: Come Work: Give the miller indices for the following Shapes : F Ap A [B H. H. -y G. 3- CO

A: You added 12 questions but according to guidelines i can answer only 3

Q: Q.2: Calculate the longest wavelength for electron revolving in the fifth excited silicon atom, drop...

A: The longest wavelength is calculated by using the equation below, 1λ=RZ21n22-1n12 R = Rydberg consta...

Q: How many moles (n=?)of carbon dioxide gas occupy a volume of 81.3L, and a temperature of 368 K at 20...

A: The combined relation between gas laws is known as the ideal gas law or the gas equation. The equati...

Q: please help?

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