You were careless when writing the procedure for an upcoming lab on dilutions. You wrote down how to make a stock solution for each of the following substances, but you didn't record the concentration. Now you must calculate the concentration of the stock solution before you can make the dilutions required in the lab and subsequently calculate the final molarity. 7. Your stock solution was made by adding 75 grams of NaCl in 1.4 L. Calculate the concentration of your stock solution. dilute 25ML of the stock solution to a final volume of 1L. Calculate the molarity of the final solution. Your instructions indicated you will

Q: In the laboratory you dissolve 18.3 g of iron(III) acetate in a volumetric flask and add water to a…

A: Mass = 18.3 g Volume = 250 mL = 0.250 L Molarity = ? Concentration of iron = ? Concentration of…

Q: If you were asked to make a 100.0 mL solution with 36.15 g of potassium permanganate (KMnO4), what…

A: The given mass of KMnO4 = 36.15 g The desired volume of the solution = 100.0 ml   Given molar…

Q: For the titration of your sample you put 0.1039 g of Aspirin in your flask.  Pretend that the…

A: Mass of aspirin in sample =0.1039 gConcentration of standardized NaOH solution = 0.1000 MMolar mass…

Q: Calculate the molarity of each of the following solutions:(a) 293 g HCl in 666 mL of solution, a…

A: Molarity (M) of a solution is defined as the number of moles of solute dissolved per volume of the…

Q: is the new concentration of the solution?   2. You start with 2.5L of a KNO3 stock solution and…

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

Q: The final volume of the solution is 284 mL. What is the concentration of CUSO4 in the final…

A:

Q: What is the final concentration of the diluted solution if a student was asked to prepare a new HCl…

A: Given: Concentration of stock HCl solution = 12 M Volume of stock solution taken = 0.50 mL  And the…

Q: You were assigned by your instructor to determine the concentration of NaCl in water. You did three…

A:

Q: chemist prepares a solution of nickel(II) chloride NiCl2 by measuring out ×1.010^2μmolof nickel(II)…

A:

Q: 4. Calculate the molarity of each of the following solutions: (a) 10.0 g H,SO, in 250 mL of solution…

A: Answer: These questions are based on the basic understanding of concentration terms and relation…

Q: A solution is made by dissolving 28.5 g of iron(III) fluoride, FeF3, in enough water to make exactly…

A: Given data contains, Mass of iron (III) fluoride is 28.5 g. Volume of the solution is 250 mL=0.25 L…

Q: 1.) If you have 0.200 mol of a compound in a 0.775 M solution, what is the volume (in L) of the…

A: Molarity  is the ratio of number  of  moles of solute by total  volume of  the solution.  Number  of…

Q: Exactly 10.0 grams of iron(III) sulfate (molar mass = 400 g/mol) was dissolved in enough water to…

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Q: A student weighs out a 3.22 g sample of K2SO4 , transfers it to a 100. mL volumetric flask, adds…

A:

Q: In the analytical chemistry laboratory, Ramli has to perform a titration of barium chloride (BaCl2)…

A: Given mass of solution = 0.108 M  Given volume of solution= 2.0 L

Q: A chemist prepares a solution of iron III  chloride    FeCl3    by measuring out  0.40g  of…

A: Given : mass of FeCl3 dissolved = 0.40 g And volume of solution prepared = 100 mL = 0.100 L…

Q: In the lab, a student makes a solution of KOH by dissolving 52.0 grams of solid in 255 mL of water.…

A:

Q: In the laboratory you dissolve 13.4 g of silver nitrate in a volumetric flask and add water to a…

A: A question based on concentration terms that is to be accomplished.

Q: What is the molarity of sodium chloride in a solution that is 26.9% by mass NaCl and has a density…

A:

Q: Suppose you have 100.00 mL of an HCl solution and transfer 2.00 mL of it to a 100.00-mL volumetric…

A: The final diluted sample has concentration = 0.000158 M

Q: A chemist prepares a solution of iron(III) chloride (FeCl,) by measuring out 2.0 g of FeCl, into a…

A: Mass of FeCl3 = 2 g Molar Mass of FeCl3 = 162.2 g mol-1  Volume of the solution = 250 mL = 250 ×…

Q: A chemist prepares a solution of sodium bromide (NaBr) by measuring out 0.14 g of NaBr into a 250.…

A:

Q: A stock solution of nitric acid is found in the back of the chem stock room, but the concentration…

A:

Q: A chemist places 2.2352 g of NaCl in a 100 mL volumetric flask and adds water to the mark and calls…

A: Weight of NaCl is 2.2352 gm Molar mass of NaCl is 58.5 gm/mole

Q: The solubility of heptanol, CH3(CH₂)6OH, is 0.16 g per 0.10 L. What is the molarity of the solution?…

A: We use the below formula to find molarity; Molarity(M) = moles of solute(heptanol)volume of the…

Q: In the laboratory you dissolve 18.9 g of manganese(II) bromide in a volumetric flask and add water…

A: molarity = mol/ volume(in L )   [MgCl2] is concentration of MgCl2.

Q: In the laboratory you dissolve 13.8 g of zinc iodide in a volumetric flask and add water to a total…

A: Given data: The mass of Zinc iodide (ZnI2) = 13.8 g. The volume of the solution = 375 mL=0.375 L. To…

Q: The molarity of a solution prepared by dissolving 15.9 grams NaI in 500. mL of solution is:

A: Molarity= (given mass/molar mass)*(1000/volume (ml))

Q: For each part of this question, consider the following scenario: You need to make a stock solution…

A:

Q: If you are asked to prepare a 3.10 M NaOH solution in the laboratory, to what volume should you…

A:

Q: In the laboratory you dissolve 22.7 g of copper(II) nitrate in a volumetric flask and add water to a…

A: Given : Mass of copper (II) nitrate i.e Cu(NO3)2 = 22.7 g And volume of solution = 500 mL = 0.500 L…

Q: A student weighs out a 3.06g sample of MgBr2, transfers it to a 135mL volumetric flask, adds enough…

A:

Q: A chemist starts with 25.0 mL of a 0.20 M NaCl solution and dilutes it to 500 mL. What is the…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: 6) Vinegar can be assayed to determine its acetic acid content. Determine the molarity of acetic…

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Q: 1. A stock potassium dichromate solution (K,Cr,0,; molar mass is 294.2 g/mol) is prepared for…

A: the solution of pottasium dichromate is given

Q: 4) Write a chemical equation describing the dissolution of Ba(NO3)2 in water. To give you an example…

A: Given, Mass of Ba(NO3) is 41.9 grams. Volume of solution is 495 mL.

Q: Consider the balanced reaction below. FeCl3 (aq) + 3 NAOH (aq) --> Fe(OH)3 (s) + 3 NaCI (aq) A 0.532…

A: Given: Concentration of NaOH = 0.532 M Concentration of FeCl3 = 0.398 M Volume of of FeCl3 = 34.9 mL…

Q: What is the minimum mass of sodium hydroxide required to neutralize a solution that was prepared by…

A: The reaction between an acid and a base gives salt and water as the product. Such kind of reaction…

Q: Part A A strontium hydroxide solution is prepared by dissolving 10.45 g of Sr(OH)2 in water to make…

A:

Q: In the laboratory you dissolve 19.0 g of iron(II) sulfate in a volumetric flask and add water to a…

A:

Q: If you add 250 ml of water to 250 ml of a 1.8M NaOH solution, what will the molarity of the diluted…

A: According to law of dilution, the number of moles of solute remains constant in the solution. During…

Q: In the laboratory you dissolve 14.7 g of chromium(III) nitrate in a volumetric flask and add water…

A: Chromium(iii) nitrate is a strong electrolyte so completely dissociate into ions.

Q: You need to make a stock solution ofMg(HCO3)2 with a concentration of 5.50 M. You have a 750.0 mL…

A: Number of moles of solute present in 1 liter of solution is known as molarity of the solution.…

Q: You are asked to make a stock solution of NaCl and dilute it to a 25 mL of 0.72 M and a 25 mL of…

A: We can make 100 mL of 1 M NaCl solution as stock solution. To make 100 mL of 1 M NaCl solution , the…

Q: A solution is made by dissolving 14.7 g of iron(III) sulfate, Fe2(SO4)3, in enough water to make…

A: The number of moles (n) in 14.7 g of iron (III) sulfate is calculate as shown below where 399.88…

Q: In the laboratory you dilute 3.85 mL of a concentrated 12.0 M perchloric acid solution to a total…

A:

Q: Consider a solution prepared by combining 45.0 g of BaCl2 with enough water to prepare a 750.0 mL of…

A: Given: Volume of solution = 750 mL = 0.750 L Mass of BaCl2 = 45.0 g Molar mass of BaCl2 = 208.23…

Q: stock solution of nitric acid is found in the back of the chem stock room, but the concentration on…

A:

Q: A chemistry student must write down in her lab notebook the concentration of a solution of sodium…

A: Mass/Volume concentration is defined as mass of solute present per mL of solution. Concentration…

Q: According to the label on a bottle of concentrated hydrochloric acid, the contents are 36.0% HCl by…

A: Let the mass of solution is 100 g Given  mass of HCl will be 36.0 g Number of moles of…

Environmental Pollution

Environmental pollution occurs due to some unwanted alteration in the surroundings which results in unfavorable effects on all organisms of that surrounding.