250% Explain why KCI is an ideal salt to be used in salt bridge.

Q: A. calculate the volume of standard sodium hydroxide solution (~0.010 M) needed to completely react…

A: Hello. Since your question has multiple parts, we will solve first question for you. If you want…

Q: How much NaCl would you dissolve and dilute to the 100.00 mL mark in a volumetric flask with DI H2O…

A: Given,Molarity of NaCl = 0.475MThe amount of NaCl required to dilute to 100mL using water to prepare…

Q: 4. How would you prepare 25.00 mL of a 0.500 M solution using a. Nitric acid from 15.8 M…

A: The question is based on the concept of solution preparation. we have been given requirements of the…

Q: a) What is the maximum amount of salt (in molecules) that can be produced when 35 mL of 0.102 M of…

A: Number of moles of strontium hydroxide = 0.035 L × 0.102 M = 0.00357 mol Number of moles of nitrous…

Q: What mass of Na3PO4・12H2O would be needed to prepare 0.250L of a solution in which the Na+ ion…

A: Concentration of Na+ ion = 0.250 mol/litre  Volume of solution = 0.250 L  Molar mass of Na3PO4.12H2O…

Q: What volume (in L) of 1.2 M FeCl2 would be required to obtain 0.85 moles of CI- ions?

A: The molarity of a solution is calculated using the following expression,…

Q: What is the molarity of a solution of volume (1.6 L) and dissolved in (1.5 g) of * potassium bromide…

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Q: If  niferex liquid solution provides 10 mg of elemental iron in 1 teasepoonful, how many mL of…

A: We need to calculate mL of solution required to provide 55 mg of elemental iron.

Q: The concentration of SO2 is 0.5 ppm. Calculate the equivalent concentration in μg/m^3 at standard…

A: Concentration of pollutants in air can be measured in unit of ppm or ppb

Q: 200.0 mL of a 0.680 M solution of KCl is diluted to 600.0 mL. What is the new concentration of the…

A: During dilution no. Of moles remains constant , so we can use equation of dilution.

Q: What volume of 11.0 M Potassium Dichromate must be used to prepare 1.5 L of 0.45 M solution?

A: Given, initial Molarity of potassium dichtomate , M1 = 11.0 M Final Molarity  , M2 = 0.45 M Volume ,…

Q: 6 How would you prepare 2.5 L of approximately 0.0600 M 13 solution? Calculate the molar…

A: Introduction to Molarity The total number of moles of solute in a given solution's molarity is…

Q: Explain why a dialysis solution must have a low sodiumion concentration if it is designed to remove…

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Q: How many grams of lodine should be used in preparing 5000 mL of 1:20 solution?

A: 1:20 means 1 g of Iodine is dissolved in 20 ml. So we have, 20 ml dissolves 1 g Therefore,  1 ml…

Q: How many grams of boric acid [B(OH)3, FM 61.83] should be used to make 2.00 L of 0.050 0 M solution?

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Q: 6. The mass of K3PO4 needed to prepare 250.0mL of an aqueous solution in which PO. concentration is…

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Q: Sketch a qualitative enthalpy diagram for the process of dis-solving KCl(s) in H₂O (endothermic)

A: When a reaction takes place, the reactants are converted to products. Some bonds are broken and some…

Q: What is the maximum mass of potassium nitrate that can be dissolved in 500. mL of water at 60°C?

A: Solubility of a compound is expressed by the mass of that amount that can be dissolved in 100 g of a…

Q: Will the following reaction take place? Explain. NaBr(aq) + F2(1)>

A: Given that : We have to identify whether or not the following reaction takes place.

Q: Write the balanced equation if Vitamin C is oxidized by I2. That was generated by mixing KIO3 and KI

A: A chemical technique which can be used for the determination of amount of compound present in a…

Q: Tell whether the solutions are 0hysical or chemical change and explain A. Iodine sublimation B.…

A: Physical changes only change the appearance of a substance, not in chemical composition. Chemical…

Q: Calculate the mass volume percent, % (m/v), of a 2.15 M solution of NaOH (FM = 40.00 g/mol).

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Q: How many grams of Pb(NO3)2 (331.2 g/mol )are needed to prepare 100 ppm (w/v) of Pb* (207.2 g/mol) in…

A: The molar mass of Pb(NO3)2 is = 331.2 g.mol The molar mass of Pb is = 207.2 g/mol The concentration…

Q: Calculate the mass (m/m) percent of sodium iodide in solution prepared by dissolving 6.43 g of NaI…

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Q: Calculate the molarity of KI in a 400 mL solution of tincture of iodine if the solution contains 5%…

A: Molarity is defined mathematically as follows:Molarity=molevolume in litre unit

Q: Calculate the mass of water in kg required to prepare a 3.00m aqueous solution of NH3 using 35g of…

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Q: Lead is a poisonous metal that especially affects children because they retain a larger fraction of…

A: Parts per million is equal to the ratio of the mass of solute to the mass of solution multiplied by…

Q: What is the molarity of the salt produced in the reaction of 200 mL of 0.100 M HCl with 100 mL of…

A: Balancing a Chemical Reaction:-  Balancing a chemical equation is necessary so as to abide by the…

Q: Calculate the mass percent of 2.67 g KCl dissolved in 46.1 g H2O

A: Mass percentage: mass of solutetotal mass of solution×100g

Q: How many gram of H2SO4 are necessary for the preparation of 0.175dm^3 of 6.00M of H2SO4?

A: We have 0.175 dm3 as volume , Molarity as 6 M, we have to calculate the mass of the sulphuric acid…

Q: Dissolving 0.845 mol NaCl in 1540mL of water yields a solution with what concentration? a. 0.000549M…

A: To evaluate any certain solution's concentration (binary solution) which consists of a substance…

Q: How many grams of KClO3 will dissolve in 100g of water at 55oC?

A: The given graph is plotted between solubility and temperature. Solubility represents the amount of…

Q: What is the mass of Potassium lodide (KI) that will dissolve in 50 g of water at 5°C? O a. 72g O b.…

A: Solubility product is a product of the concentration of ions with the power when the solution is…

Q: prepare a standard solution of a potassium Chloride (KCI), 0.3 N in 500 ml of water. (atomic weight…

A: Normality = Number of gram equivalents/ [volume of solution in litres]  Number of gram equivalents =…

Q: 2. Determine the volume of 0.10 M potassium thiocyanate needed to prepare 100.00 mL of a 0.00100 M…

A: Ans. According to law of similarity:           N1V1=N2V2…

Q: How would a student make 500.0 mL of a 0.05000 M solution of iron (III) using a stock solution that…

A: In 500 mL of 0.05 M solution of iron (III), the moles of iron(III) = molarity X volume of solution…

Q: Carbon tetrachloride, once widely used in fire extinguishers and as a dry cleaning fluid, has been…

A: Here we use the colligative property of solution which is elevation in boiling point on addition of…

Q: How much hydrazine is needed to prepare 100 mL of a 0.5 M stock solution?(MW = 32g/mol) b) How…

A: To determined mol of substance(quantity) we can use Molarity formula of solution which is give…

Q: How many grams of Na2S2O3 are needed to prepare 50.0 mL of 5.00%(m/v) NaS2O3 solution?

A: Given: Mass-volume % of Na2S2O3 = 5.00%(m/v) total volume = 50.0 ml

Q: What is the Molarity of the solution prepared by diluting 35.0 mL of 1.25 M AgNO3 to 95.0 mL?

A: On diluting a solution, no of moles do not get change. As no of moles = Molarity ×Volume, thus…

Q: How would you prepare a 12 mL solution of 1 mM NaCl in deionized water if your precision balance has…

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Q: Calculate the molar concentration of HNO3 (63.0 g/mol) in a solution that has a specific gravity of…

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Q: How many grams of KCI must be added to 250.0 mL of water to prepare a 9.82% (m/v) solution?

A: Given that: Volume of water = 250.0 mL (m/v) of the solution = 9.82% Mass of KCl = ?

Q: 61. Concentrated HCI (36.46g/mol) has a purity of 36.5% w/w and sp.gr. 1.18; approximately how many…

A: Given that, Concentrated HCl has a purity 36.5% (w/w). The molar mass of HCl is 36.46 g/mol. The…

Q: Calculate the concentration of the solute: 125 mL of 0.640M diluted to 2.00 L

A: Given : Initial concentration of solute = 0.640 M Initial volume of solution = 125 mL And final…

Q: How would a student make 0.500 mL of a 0.05000 M solution of iron (III) using a stock solution that…

A:

Q: What is the molality of lithium ions in a 0.302 m solution of Li;PO, assuming the compound…

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Q: What are the steps to take to find the solution for the following problem: 1037.78 ÷ 3.2 × 0.1?

A: We will apply the BODMAS for this equation.  The order of solving such problem is  B = bracket O =…