Expeniment name and Chemi cal forimula Cobalt (1) aitrate Suldtatance sene and chemical formula 2 Mm, 9/mol 182.95 glmol Tnihal volume, L Inihial Concentrahion measure d, mal/L Number of mole's and mass of mass Of Solute 500ML 0-876 mollL 0-438 mol ColN Concentrction after eveptrahon 1.461 mal L Can you please explain to calculate how the was arrived at ?

Q: 74.S5g/mcl p el It'an aquecusSclution uf KCl\(mclar mass. has a concentration of S.50m what is the…

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Q: What is the concentration of arsine (in units of grams per liter) dissolved in water at 25° C, when…

A: Given : Partial pressure of Arsine = 0.701 atm  And K for Ar = 8.9 X 10-3 mol/L.atm

Q: mass of Na2CO3 (grams) moles of Na2CO3 V final, volume dilute HCl at endpoint (mL) V initial, volume…

A: Molar mass of Na2CO3 = 105.99 g/mol  Required conversion factor is: 1 mol Na2CO3 = 105.99 g Na2CO3…

Q: How many miliequivalentsare there in 50ml of 0.2M H2SO4

A: Answer :-- Here, we have to determine the moles of H2SO4 in the solution, using the formula are…

Q: step-3 conclu sion Hence con centration in Rirst tanle can be Salt esepressed as C, vt ニ exp | Vo

A: The following values are given in the question. At t=0,  salt solution volume in first tank= V0…

Q: For this question, let's assume that both the number of moles (0.438 mol Co(No3)2 and the mass of…

A: We have to calculate number of moles and mass of solute [ Co(NO3)2 ].

Q: Part A: Determination of Densities of Pure Water and Calcium Chloride Solutions (1) Temperature of…

A: Concept used: Density = mass VolumeSpecific Gravity =Density of solutionDensity of reference

Q: Q.) What is mole mass) aqueous s A. 0.15 B. 0.50 C. 0.75 D. 0.02 E. 1.00

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Q: Please answer the questions

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Q: 6. You have extracted and eluted 100ul of RNA and find that the concentration is 250ug ul, how would…

A: 6. Dilution of the solution: When we dilute a concentrated solution with pure water, the mole of…

Q: The molarity of 100mL of 69% HNO3 , sp. grv. 1.4 equal ----------------

A: Molarity is the term which is used to represent the concentration of the solution. Molarity is…

Q: fine the mass (g) of the solute  135ml of 2.01M HNO3

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Q: bollit so of boon lost 2505 6918 Hydrogen peroxide (H₂O2 34.02 g/mol) is sold as an aqueous solution…

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Q: What mass of solute, in g, is needed to create 7.6OL of 0.125M AgC2H3O2?

A: Molar mass of AgC2H3O2 = 166.91g/mol Number of moles = given mass/Molar mass

Q: moles of solute Molarity Molarity = liters of solution 1. Determine the molarity of these solutions:…

A: a) M= 4.672.04          = 2.w89 M b)M= 0.6291.5         =0.4193 M c) M= 4.783×1106×10          =…

Q: * Identity of Dehydrated salt (for afterwards) Mass of empty dish 70.874g Mass of dish + hydrated…

A: The number of moles of dehydrated salt is 0.002384 mol. nMnCl2=mMnCl2MMMnCl2=0.3 g125.844…

Q: 1. Fill in the table below by completing the following calculations (moles NaOH, moles HNO3,…

A: ♣ The chemical reaction between HNO3 and NaOH takes place in the following way -…

Q: Past 11:Chave s' Law Cherles' Low describer the relatronship between volume(V) and templature. when…

A: Charles law states that Volume is directly proportional to temperature when number of moles and…

Q: I don't know how to answer the question to the file attached

A: According to the rules followed in significant figure calculations, the result obtained from…

Q: What weight of CaCl2 is needed to prepare 100mL of a 0.20 M solution? i. 20.0g ii. 0.02g iii. 2.20g…

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Q: Calculate the mass percent of a solution that is prepared by adding 36.4 g of NaOH to 273 g of H2O.…

A: To find out mass percentage of solution ? Given,  mass of NaOH=36.4 gmass of H2O =273 g

Q: Determine the mass of solute (in g) contained in 250.0 mL of a 1.77 M solution of AlF3. g AlF3

A: Molarity is defined as the number of moles of solute present in one liter of solution.