A hospital saline solution is analyzed to verify its concentration. A 50.0-mL sample of the solution with a mass of 43.69 g is evaporated to dryness. If the solid sodium chloride residue has a mass of 5.89 g, what was the mass percent of sodium chloride in the original solution? % NaCl

Q: How many microliters of original sample are required to produce a final dilution of 102 in a total…

A: according to Dilution law initial = final  M1V1 = M2V2  final dilution = M2 / M1 =10-2  (given)…

Q: 400.0 mL of a 0.455 M solution of NaCl is diluted to 900.0 mL. What is the new concentration of the…

A: Given, 400.0 mL of a 0.455 M solution of NaCl is diluted to 900.0 mLwe are asked to calculate the…

Q: A 122-mL sample of a 1.2 M sucrose solution is diluted to 500.0 mL. What is the molarity of the…

A: Given, volume of sample, V1 = 122 mL Molarity of sucrose solution, M1 = 1.2 M Volume of the…

Q: 75 ml of an aqueous solution of HCIO4 with the percent by mass 35 % and density 1.67 kg/L , was…

A: It is given that 75 mL of an aqueous solution of HClO4 with a density of 1.67 kg/L, is mixed with…

Q: 8.49 mL of 4.00 M acetone is combined with 10.0 mL of 1.00 M HCl, 15.0 mL of 0.00500 M I2 and 7.95…

A: Molarity of a solution is defined as number of moles of solute dissolved per litre of the solution.…

Q: A 30.0 mL sample of a 40.0% aqueous NaCl solution is diluted to 1.00 L to produce a 0.300 M NaCl…

A: In a given problem we have to figure out the density of the stock solution of NaCl

Q: on khowing the molečula weight of the solute is 327.33 g/mol and the density is 1.28 g/mL.

A: Given, volume of Solution = 250 mL  Molarity = 0.1 M  Molar mass of solute = 327.33 g/mol Mass of…

Q: 715 mL of water was added to 40.0 mL of 0.550M MgCl4 solution. Assuming the volumes are additive,…

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

Q: A 65.0 mL portion of a 1.20 M solution is diluted to a total volume of 288 mL. A 144 mL portion of…

A: When the solution is diluted then the concentration of the solution decreases.  So the concentration…

Q: 0.05 g of acetyl salicylic acid has been dissolved to the volume 25.00 ml to create a stock…

A:

Q: A KNO3 solution is made using 92.4 g of KNO3 and diluting to a total solution volume of 1.80 L.…

A:

Q: A mixture is prepared by mixing 35.27 mL of the blue dye solution with 35.00 mL of the red dye…

A: Volume of Blue dye  = 35.27 mL Volume of red dye = 35.00 mL Volume of yellow dye = 33.89 mL

Q: An aqueous potassium iodate stock solution is made by dissolving 5.49 mol KIO, in sufficient water…

A:

Q: a student will be preparing 100.0 ml of a 0.050 m aqueous solution of NaCl in a clean and dry…

A:

Q: Consider the compound tartrazine (Yellow 5 food dye) that has a chemical formula of C16H9N4Na3O9S2.…

A: 1) Since molar mass = sum of ( Atomic mass of each atom present in the molecule X number of atoms)…

Q: A 14.8 M solution of concentrated nitric acid has 15.7 mL withdrawn from it. The 15.7 mL sample is…

A: When a concentrated solution of concentration C1 and volume V1 is diluted by adding water to a final…

Q: 25.0 mL of 0.212 M NaOH is neutralized by 26.7 mL of an HCl solution. The molarity of the HCl…

A: Given -> Volume of NaOH(V1) = 25.0 ml = 0.025 L Molarity of NaOH(M1) = 0.212 M Volume of HCl (V2)…

Q: molarity

A:

Q: What term is used by chemists to quantitatively describe a solution in which a relatively small…

A: Types of solution in terms of concentration 1) dilute solution 2) Concentrate solution

Q: A student prepared a stock solution by dissolving 20g of NaOH in enough water to make 150 mL of…

A: To solve this first we have to calculate the concentration of NaOH then according to dilution…

Q: What is the molarity of a solution that is prepared by mixing 37.0 mL of ethanol in 100.0 mL of…

A: Given, The volume of ethanol = 37 ml volume of water = 100 ml Volume of solution = 133 ml Density of…

Q: 6 M of HCl solution is required for the chemical analysis. How much water must be added to 250 mL…

A: Given: Initial concentration (stock solution), M1 = 12 M The initial volume (stock solution), V1…

Q: You have a stock solution of NaCl in water that has a concentration of 50.0g/L. State what volume of…

A: Given: Concentration of stock solution of NaCl = 50.0 g/L.

Q: Potassium hydrogen phthalate is a solid, monoprotic acid frequently used in the laboratory to…

A: 1. We have 29.3 ml of 0.557 M of NaOH solution, which we are titrating with KHP. We have to…

Q: A student has a solution of sodium nitrate and believes it is saturated. Which statement provides…

A: Solutions are liquids that contain dissolved substances inside, usually former solids. Dissolving…

Q: Calculate the molarity of a solution prepared by dissolving 17.05 grams of KCI ( OR K CI) to total…

A:

Q: A 373-mL sample of a 0.481-M CaCl2 solution is left on a hot plate overnight; the following morning,…

A: The objective of this question is to find out the volume of water that evaporated from the CaCl2…

Q: One half liter (500.0 mL) of 2.50 M HCl is mixed with 250.0 mL of 3.75 M HCl. Assuming the total…

A:

Q: at a certain temperature,1.85 grams of barium hydroxide will dissolve to form 100.0 ml of a…

A: The given mass of barium hydroxide = 1.85 g The volume the solution = 100.0 mL = 0.100 L  The…

Q: How many moles of CSOH are contained in 244 mL of 0.135 m CsOH solution? The density of the solution…

A: Volumeof CsOH = 244 mlMolality of CsOH = 0.135 mDensity of solution = 1.22 g/mL

Q: A 13.3 g sample of an aqueous solution of hydrochloric acid contains an unknown amount of the acid.…

A: Given: Mass of sample = 13.3 g Volume of Ba(OH)2 = 21.1 mL Molarity of Ba(OH)2 = 0.603 M Molar mass…

Q: series of iron standard solutions need to be made from a 40 ppm iron stock solution provided. For…

A: As we know , Moles the solute remains same on dilution but volume of the solution increases.…

Q: 4. Sodium hydroxide solution was standardized against one gram of potassium acid phthalate. First…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: 50 ml of 1 M HCl reacts with 50 ml of 1 M NaOH. what is the mass of the resulting solution

A:

Q: The "solute" is the chemical that gets dissolved, and it should be set to "Drink Mix." Adjust the…

A: According to the answering guidelines, I'm posting the solution for the first 3 sub parts. Kindly…

Q: A 122-mL sample of a 1.2 M sucrose solution is diluted to 500.0 mL. What is the molarity of the…

A: In 122 mL sample of 1.2 M sucrose, the number of moles of sucrose is; 1000 mL=1.0 Ln=122 mL1000…

Q: For each of the following solutions, calculate the normality.  a) 15.3 mL of 0.135 M HCl diluted…

A: (a) The molarity of 15.3 mL HCl before dilution is 0.135 M. The volume of solution after dilution is…

Q: A 0.678-g sodium carbonate sample with 98.6% purity requires 36.8 mL of sulfuric acid solution to…

A: We can determine molarity by using Molarity =  mole of solute/ volume of solvent (in the litter)

Q: Exactly 42.35 mL H2SO4 is neutralized with 21.15 mL of 0.500 M NaOH, what is the normality of H2SO4?

A: Given: Volume of H2SO4 V1=42.35mL Volume of NaOH V2= 21.15mL Molarity of NaOH M2= 0.500M To find:…

Q: A 6.00 M stock solution of potassium permanganate is diluted successively by first diluting 5.00 mL…

A:

Q: You dissolved 43.0 g NaOH in distilled water and brought the final volume up to 500 mL. Give the…

A: Given :-  Mass of NaOH = 43.0 g  Volume of solution = 500 mL  To calculate :-  Molar concentration…

Q: If 8.0 mL of a 0.40 M NiSO4 solution is needed to prepare 10. mL of 0.32 M NiSO4 solution, how much…

A:

Q: A 12.7 g sample of an aqueous solution of hydrochloric acid contains an unknown amount of the acid.…

A:

Q: You add 25.0 mL dionized water to 60.0 mL of 0.450 M potassium cyanate. Calculate the molarity of…

A: Given: Molarity of potassium cyanate = 0.450 M Volume of potassium cyanate solution = 60.0 mL Volume…

Q: 11.) What is the molar concentration of 268 mg of sodium acetate when added to 135 mL of water?

A: Molarity of the solution can be determined by dividing the number of moles ofsolute with the volume…