The salt content was extracted from a 12.0000 g junk food sample. The extract was diluted to 100.00 mL. From this solution, 15.00 mL was taken and required 23.75 mL of a 0.08943 M AgNO3 solution to reach the endpoint. What is the percentage by mass of salt as NaCl (58.45 g/mol) in the junk food sample?  ANS: 6.897 % NaCl

Q: What volume in mL of 0.300 M NaF would be required to make a 0.0470 M solution of NaF when diluted…

A: Given, Initial Molarity, M1 =  0.300 M Volume, V1 = ? Final volume of the solution, V2 = 250.0 mL…

Q: Solution A is prepared by dissolving 95.8 g of Na3PO4 in enough water to make 1.50 L of solution.…

A: Given: For solution A  Volume of water= 1.50L  Na3PO4=95.8 g  For solution B Volume= 2.50L Molarity…

Q: . A 0.57 gram sample aspirin (MM=180 g/mol) is crushed and dissolved in water. The sample is…

A: Since you have posted multiple questions, we are entitled to answer the first only. 1) Given: Mass…

Q: By experiment, the normality of H2SO4 was found to be 0.5172. If 39.65 ml of this acid neutralized…

A: 1. Given in the question =  Normality of H2SO4 solution = 0.5172  Volume of acid = 39.65 mL Volume…

Q: Put together a PROCEDURE for an experiment in which you prepare 100.00 mL of a solution. Solution…

A: Given that, Concentration of dilute HCl solution = 3.0 M A solid FeCl3.6H2O, iron(II) chloride…

Q: Calculate the grams of lead(II) nitrate to make 766 mL solutions with the following concentrations.…

A: Molar mass of lead(II) nitrate = 331.2 g / mol

Q: The solubility of an unknown sample was determined. A volume of 20 mL of filtered supersaturated…

A:

Q: 1 gram of AgCl (s) is added to  flask containing 98.741mL of an unknown NaCl solution. The…

A: AgCl is a partially soluble salt whereas NaCl is completely soluble. Thus NaCl will extert common…

Q: y! how to Q What g. y zinc anc y ideal ga y What g Q What g y What g W molarit Experim…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: ater (dH2O). What is the concentration of this MgSO4 solution expressed as % (m/m)? [Mwt MgSO4 =…

A:

Q: What volume of 10 ma/m % KOH solution is needed (with a density of 1.09 g/cm3) to neutralize 25 cm3…

A: Let the mass of KOH solution be 100 g.10% m/m. Therefore mass of KOH = 10g = 0.178 moles.Volume of…

Q: 1. Determine the concentration and amouht of requ 2. Carefully fill the flask to the mark etched on…

A: To prepare a solution of known concentration it is necessary to know that we must be aware of the…

Q: The volume of water needed to dissolve 0.0597 grams of barium chromate is ______ L. Assume no…

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

Q: What volume in mL of 0.300 M NaF would be required to make a 0.0365 M solution of NaF when diluted…

A: According to formula, M1V1       =        M2V2 Before Dilution                After Dilution M1 =…

Q: 139.1 mg of NaCl (MM=58.44 g) is dissolved in 373.08 L of water. What is the concentration of Na+…

A: Given that,  Amount of NaCl to be dissolve in water = 139.1 mg  Mass of Na+  in 139.1 g, m = (139.1…

Q: pertuint UI (TI/III) CONCentration. Step 5. Put exactly 1 cup (or 237 mL) of distilled water into…

A: In the given question we have to calculate the mass percent of Solution. given data: 1 cup of…

Q: Determine the mass of Ferrous ammonium sulphate ((NH4)2.Fe(SO4)2.6H2O) required to prepare 20 ppm…

A: For Ferrous Ammonium sulphate, Volume, V = 100 mL = 0.1L Concentration, C = 20 ppm Mass, m = ?

Q: What are the 4 steps of an appropriate and safe laboratory procedure for preparing the solution?…

A:

Q: A commercial base solution, NH3 has a specific gravity of 0.898. Calculate the molarity of a 28.0 %…

A: The molarity is given as the no of moles of solute present in the one liter of solution.

Q: Solute: HCl Composition of Solution: Wt% HCl = 25% Density, g/mL: 20 degrees: 1.149 ; 80 degrees:…

A:

Q: What volume, in mL of 2.0 M sulfuric acid is required to make 450 mL of 0.25 M solution of sulfuric…

A: Given a solution of sulfuric acid having concentration of 2.0 Mwe are asked to calculate the volume…

Q: Hannah needs to make a solution of KMnO4 to be used in a chemistry experiment. On the shelf in her…

A: Basically when we need to make solution of another lower concentration from a higher concentrations…

Q: How many mL of 0.25 M of SDS is required to be poured in a 750 mL so that its final concentration is…

A: From given data  Initial concentration M1= 0.25 M Final concentration M2= 0.024 M  Final volume V2 =…

Q: o determine the amount of copper and the identity of the copper compound in the unknown sample, a…

A: Given :-  Stock volume of copper containing sample = 100 mL  Mass of copper containing sample in…

Q: 500 mL of pure water is first added to 500 mL of 0.500 M K2Cr2O7, making a “standard” solution. What…

A: Given that, 500 mL of 0.500 M of K2Cr2O7, making a "standard" solution, i.e. V1 = 500 mL and S1 =…

Q: Express the concentration of a 0.0160 M aqueous solution of fluoride, F−, in mass percentage and in…

A: The molarity of the fluoride ion is = 0.0160 M The density of the solution is = 1.00 g/mL The molar…

Q: How to get 10% HCl solution and 6 M HCl Solution from concentrated HCl solution, which is 12 M or…

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

Q: Locke-Ringer's solution contains 9 g of sodium chloride, 0.24 g of calcium chloride, 0.42 g of…

A: Locke-Ringer Solution An isotonic solution used for the treatment of dehydration. It contains…

Q: Show your complete solution and round-off your answers to four decimal places.   A 0.1093-g sample…

A: Number of mmol = Molarity x Volume (mL) Na2CO3  +  2AgNO3  ----->  2NaNO3  +  Ag2CO3 KSCN  +…

Q: How many mL water must be added to produce a. 625 mL of 1.00M solution from 6.00M solution? b.…

A: a)Given: M1= 6.0M M2= 1.00M V1 = ? V2= 625mL for dilution M1V1=M2V2  V1 = M2V2/M1 = 1.00 x 625/6.0 =…

Q: A 0.128 g sample of KHP (HKC8H4O4) required 28.54 mL of NaOH solution to reach a phenolphthalein…

A:

Q: Rudolf has an 15mL extract from a plant sample. He took a 50.0 μL aliquot and diluted the solution…

A: From 15 mL extract of a plant sample, 50.0 μL aliquot is taken and diluted to 1 mL. Another…

Q: Prepare a glucose solution (mm=180.16 g/mol) using the described procedure: 1. Dissolve 216.5 g of…

A: 1. Definition: Molarity is a concentration term for a solution. The molarity of a given solution is…

Q: About 40.00 mL of Na2S2O3 are needed to react with 4.0 x 10^-3 moles of I2. 2S2O3^-2 + I2 -> S4O6^-2…

A:

Q: Q3/ Calculate the normal concentration of 0.5 g K,Cr,07 dissolved in 500 ml of water ?g.M.w K2Crz0,…

A: Question 3 :- Given Mass of K2Cr2O7 = 0.5 gram MOLAR Mass of K2Cr2O7 = 294 g/mol Moles of of K2Cr2O7…

Q: 13. A solution of Na2CO3 (105.99 g/mol) is obtained by dissolving 0.10599 g of Na2CO3 into in a…

A: The question is based on the concept of solutions.   molarity is a method of expressing…

Q: Determine the volume of dilute HNO3 (d= 1.11 g/mL and 19% pure) that can be prepared by diluting 50…

A: Interpretation -  To determine the volume of dilute HNO3 (d= 1.11 g/mL and 19% pure) that can be…

Q: How many mL of 0.300 M NaF would be required to make a 0.0715 M solution of NaF when diluted to…

A: For the preparation of dilute solution from a stock solution, we can use the following formula,…

Q: A 250 cm solution is prepared by dissolving 8,0 g sodium hydroxide in distilled water. a) Calculate…

A: Given data mass of sodium hydroxide (NaOH) = 8.0 g Volume of NaOH solution = 250 cm3…

Q: How many mL of water should be added to dilute 80.00 mL of 6.000 M KI to 2.400 M KI

A: Given details: Initial volume, V1=80mLInitial molarity, M1=6 MFinal molarity, M2=2.4 M We have to…

Q: NaOH was standardized with 0.5 g potassium acid phthalate. At endpoint, 24.20 mL NaOH solution was…

A: Given:  Mass of potassium acid phthalate = 0.5 gm  Molar mass of potassium acid phthalate = 204.2…

Q: Based from the Molarity of the palmitic acid solution that you were able to solve earlier, how will…

A: Given,  Stock solution : Molarity  M1: =2 M Volume = V1 (to calculate) Diluted solution : Molarity…

Q: A solution was prepared by dissolving 3.50 g of KCI MgCl₂ 6H₂0 (277.85 g/mol) in sufficient water to…

A:

Q: (A)The following figure is the structure of Glycerin molecule. There is a certain functional group…

A: a. The functional group present in glycerin molecule is alcohol. b.

Q: Suppose 1.96g of potassium bromide is dissolved in 250mL of 33.mM aqueous solution of silver…

A: Given: 1.96g of potassium bromide is dissolved in 250mL of 33.mM aqueous solution of silver nitrate.…

Q: ou are provided with a) 500 mL of 10 M KMnO4 solution b) 100 grams of pure NaCl c) 100 mL of 12 M…

A: Solution - According to the question - Given - 1. Prepare the ferrous sulphate solution in a beaker…

Q: What volume in mL of 0.300 M NaF would be required to make a 0.0605 M solution of NaF when diluted…

A: Molarity is a concentration term. It is expressed as the number of moles of solute dissolved in per…

Q: Given a 100 mL solution of 0.050 M BaCl2●2H2O solution, which of the following statements is…

A: Answer: First of all we will calculate the number of moles of BaCl2.2H2O and then with help of this…

Q: 320 g of a sample of Mg with a coating of Mgo on its surface needed 20 ml 0.1 M HCL for complete…

A: