Iodine-131 is a radioactive isotope. After 9.00 days, 46.0% of a sample of 1311 remains. What is the half-life, 112.1 of 1311? 11/2 == I Enter numeric value days

Q: Gold spacer in liquid cell TEM is used for Select one: a. All of these b. Liquid Flow c. Liquid…

A: TEM is a transmission electron microscopy. It is a technique used to determine the structure of…

Q: What are diffusion controlled method?

A: Diffusion-controlled method: Diffusion-controlled Method involves the reactions in which the rate of…

Q: A cylindrical sample of solid germanium has length 55.0 mm and diameter 5.0 mm. In a test circuit,…

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Q: Ep(Cu¹2/Cu)= -0.022 V

A: To determine the concentration of the species in cyclic voltammetry, you need to use the Nernst…

Q: does melting point determination remove impurites in crude protein?

A: Concept- Melting point is the temperature at which solid will convert into liquid. Because it is a…

Q: How coulometry is done? Explain the steps in a simple way.

A: Coulometric Analysis is an application of Faraday᾿s first law of electrolysis. It is based on the…

Q: Why is it important to assess factors that influence egg white foam stability?

A: Egg white foams are made from whipping egg whites very quickly to add air and create volume. Airy…

Q: In paper chromatography, the stationary phase is made of ---------- and the mobile phae is made of…

A: A paper chromatography variant, two-dimensional chromatography involves using two solvents and…

Q: Resistance of 0.2 M solution of an electrolyte is 50 0. The specific conductance of the solution is…

A: GivenSpecific Conductance = κ = 1.3 Sm-1Given resistance = 50 ohmκ = 1R× cell constant1.3 Sm-1 = 150…

Q: The resistance of a cell containing the solution is 48. The cell constant of the solution is 0.3476…

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Q: On binary phase diagram and types. Check the wrong option a) The alloy that contains exactly the…

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Q: absorbance of 0.467. A standard solution was put through appropriate dilutions to give the…

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Q: Which technique is based on the stronger attractionsome components have for the stationary…

A: In chemistry, when a reaction is performed between the reactants, that just does not involve mixing…

Q: Calculate the PH of the solution to 2 significant figures  0.021 moldm-3 HCl show all working outs

A: Given, [HCl ] = 0.021 mol dm-3  PH is defined as negative logarithm of concentration of [H+ ] ion.

Q: Discussion of the result of the Charpy test on Mild steel & Carbon steel

A: Charpy test determines the toughness or impact strength of the material in the presence of a flaw or…

Q: 4.Discussed the Purposed of the Golden rules in the practice of Forensic Chrmistry.

A: The application of chemistry and its subfield which deals with toxicology in a legal manner is study…

Q: 5- Resistance of the 0.05 M solution placed between two Pt electrodes having surface area 10 cm' at…

A: Concentration = 0.05 M Surface area(A) = 10 cm2 Length (l) = 1.5 cm Resistance (R) = 50 ohm

Q: Which method of DO measurement is the least reliable? Pick the best answer Galvanic cell Optical DO…

A: B) Galvanic Cell is the method of measurement of dissolved oxygen content which is the least…

Q: How to assay expectorant KI in details please

A: Potassium Iodide is a chemical compound with formula KI. It is used for medication purposes and as a…

Q: What happen to ink in the filter paper strip which is store in isopropyl alcohol for 15 minute

A: Given: To determine what happen to ink in the filter paper strip which is store in isopropyl alcohol…

Q: 1 Explain the effect of temperature on the rate of corrosion with the drawing.

A: Since you asked multiple questions so as per Q&A guidelines of portal I solve first question…

Q: Short answer: 1. Sodium reacts with water to produce hydrogen gas and sodium hydroxide. If 15 g of…

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Q: 1. What is the function of a liquid junction? 2. What causes the potential difference at the liquid…

A: Hi, we are supposed to answer one question. To get the remaining questions solved please mention the…

Q: Calculate the equivalent conductance at each concentration of sodium iodide solution in the cell…

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Q: Name the disadvantages of cloud point extraction technique.

A: A question based on analytical process that is to be accomplished.

Q: 5. Consider the phase diagram of Cu-Be shown below. At 1000°C with an overall alloy composition of 1…

A: Given phase diagram:

Q: A 0.28g steel sample containing an unknown % of Mn is dissolved and digested. The solution is tested…

A: Answer:- This question is answered by using the simple concept of calculation concentration using…

Q: how the liquid junction potential can be eliminated ?

A: When two different concentrations of electrolyte solution come in contact forms liquid junction…

Q: 1-Define of passivity metals and what specifications of it? 2-Wirte of methods to reduce corrosion…

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Q: Give the applications of semidry scrubbing system?

A: A dry scrubber, also called as dry scrubber system, is defined as the pollution control equipment…

Q: Distinguish between interstitial defect and metal excess defect.

A: Interstitial defect metal excess defect This defect arises due to the occupation of some atoms in…

Q: What is the role of collectors in Froth Floatation process?

A: Various processes are used for extraction of minerals. These minerals are very useful for…

Q: Can elastic hose use for pumping and transferring concentrated solution of CH3COOH for long time? If…

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Q: A Red O B Lilac O C Green O D Yellow

A: the flame test was careed out on sodium carbonate the flame color will be yellow

Q: In thin layer chromatography, the stationary phase is made of and the mobile phase is made of solid,…

A: Thin layer chromatography: TLC is a chromatography technique used to seperate non-volatile mixture.…

Q: How long would it take to plate 6.49 g of nickel onto copper using a 2.0 V power supply with a 437…

A: Given data : Mass of nickel deposited (m) = 6.49 g Current (I) = 437 mA = 0.437 A Molecular weight…

Q: (d) Calculate the electrical conductivity of a 6.0 mm diameter cylindrical silicon specimen of 60 mm…

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Q: application of intergration

A: To determine the rate of a chemical reactions.