Consider 100.0 ml of a 1.00 M solution of sodium chloride in a beaker. After several days have elapsed, you test the solution and find that it has a concentration of 1.33 M. How much water must have evaporated?

Q: You have 130.0 mL of a 0.245 M salt solution in a coffee mug. After leaving the mug out for weeks,…

A: Answer :-           130.0 ml of 0.245 M salt solution in a coffee mug after a week a lot of water…

Q: A reagent bottle is labelled 3.00 M sulfuric acid. You titrate a 25 mL sample with 1.58 N sodium…

A: neutralisation reaction are reaction where the acid and base react to form a salt and water here we…

Q: How do you calculate the density of 0.9-M solution of HCl? The book gives the density of 1.0-M HCl…

A: Given: Molarity of HCl = 0.9 M Molecular weight of HCl = 36.46 g/mol

Q: What is the mass of a solution if 25.0 ml of NaOH was added to a 35.0 ml of water? Assume a density…

A: The density of a solution is the ratio of its mass to volume. It is labelled in equation (1) in…

Q: A 10 % solution of NaCl means that in 100 grams of solution there is? a. 5.85 g NaCl b. 58.5 g…

A: A multiple choice question based on percentage of solution, which is to be accomplished.

Q: 71.  What mass of solid NaOH (97.0% NaOH by mass) is required to prepare 1.00 L of a 10.0% solution…

A: Given,Volume of solution = 1.00L. Density of 10.0% solution = 1.109g/mL.

Q: Write a detailed set of instructions for making two solutions: (1) 100 mL of 12 M NaOH from solid…

A: (1) Given, 100 mL of 12 M NaOH Molar mass of NaOH = 40 g.                                     48 g…

Q: Calculate the molarity of each of the following solutions. A.) 27.03 g C6H12O6 in 1.25 L of…

A:

Q: A 10.5%(w/w) NiCl2 solution has a density of 1.149 g/mL. What is the mass in grams of Ni2+ contained…

A: Given : 10.5%(w/w) means 10.5 grams of NiCl2 (solute) present in 100 grams of solution. Mass of 1 L…

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

A:

Q: In the laboratory, a student dilutes 26.7 mL of a 7.32 M hydrochloric acid solution to a total…

A: Initial Molarity, M1 = 7.32 M Initial volume, V1 = 26.7 mL Final Molarity, M2 = unknown Final…

Q: To prepare 50 ml of a 100 mM solution of NaCl, a researcher should add___(volume with units) of the…

A: Given: The molarity of the stock solution is 1 M. The molarity and volume of the final solution are…

Q: In the laboratory, a student dilutes 17.9 mL of a 8.42 M hydrochloric acid solution to a total…

A:

Q: Suppose you would prepare a standard solution. What laboratory glassware you must appropriately use…

A: Preparing a solution of known concentration is the most common activity in any analytical lab. The…

Q: In the laboratory you dilute 5.53 mL of a concentrated 12.0 M perchloric acid solution to a total…

A: The molarity of a solution is given by:

Q: 1. A solution of sodium bicarbonate is prepared by adding 45.00 g of sodium bicarbonate to a 1.00-L…

A:

Q: 46.29 g of KOH is dissolved in 250. mL of water. A. If I add 500. mL of pure water to this 250. mL…

A: We know that,   Molarity = no. of moles of solute/volume of…

Q: 3. Dioxin (MM = 321.97 g/mol) is one of the most toxic compounds on the planet and the EPA has set…

A:

Q: solution of hydrochloric acid was formed by dissolving 5.51 g of hydrogen chloride gas in enough…

A: In this question, you will calculate the Concentration of the Solution in weight / volume %  You can…

Q: How many milligrams per liter are equivalent to a 1.2% solution of a substance in water?

A: The answer is given below-

Q: In the laboratory, a student dilutes 12.8 mL of a 9.35 M perchloric acid solution to a total volume…

A: In the dilution process, the relationship between initial and final concentrations and volumes of…

Q: In the laboratory you dilute 3.30 mL of a concentrated 3.00 M perchloric acid solution to a total…

A: Given :-  Initial concentration of solution = 3.00 M  Initial volume = 3.30 mL  Final volume = 175…

Q: In the laboratory, a student dilutes 25.6 mL of a 8.86 M perchloric acid solution to a total volume…

A: Given: final volume of solution(V2)=250 ml initial volume(V1 )=25.6 ml initial concenteration(M1) =…

Q: A sample of concentrated nitric acid has a density of 1.41 g/mL and contains 70.0%HNO, by mass. What…

A: Given: Density of concentrated nitric acid=1.41g/mol Mass percentage of nitric acid=70.0% Formula:…

Q: Which of these will NOT dissolve in water?    a.table salt b.sugar c.vinegar d.bacon fat

A: Given options are : a.table salt b.sugar c.vinegar d.bacon fat Which of these…

Q: A cola drink contains 10.6 g of sucrose per 100 mL. (i) Calculate the molarity of the sucrose…

A: Given : Mass of sucrose i.e C12H22O11 = 10.6 g And volume of solution = 100 mL = 0.100 L…

Q: A chemist needs 13.81 mL of 1.458 M NaCl. What volume in mL of 3.767 M NaCl must be diluted in water…

A: Moles before dilution and after dilution ae same as per mole concept.

Q: Calculate the normality of 0.321 g sodium carbonate when it is mixed in a 250 mL solution

A:

Q: What laboratory equipment do you need to prepare 250 mL of a 0.010 M solution of NaCl from a stock…

A: The molarity of a solution is used to define the concentration of solute in that solution. The…

Q: 69.0 mL of 2.0 M Sr(OH)2 are mixed with 31.0 mL of 1.8 N Sr(OH)2 . What is the normality of the…

A: Given Sample 1 : Molarity of Sr(OH)2 = 2.0 M , volume = 69 ml Sample 2 : Normality of Sr(OH)2 = 1.8…

Q: Describe how you would make a 500.0ml sample of 2.00 M KBr solution. You have access to solid KBr, a…

A:

Q: How many milliliters of a 0.900% (m/v) normal saline solution can be prepared from 2.00 g of sodium…

A: Percentage (mass/volume) can be defined as the weight of solute in g per volume of solution in mL,…

Q: In the laboratory you dilute 5.08 mL of a concentrated 6.00 M hydrochloric acid solution to a total…

A: The volume of the concentrated solution, V1=5.08 mL The Concentration of the concentrated solution,…

Q: A 12.6 g sample of an aqueous solution of perchloric acid contains an unknown amount of the acid.If…

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

Q: A solution is made by combining 4.00 g of sugar and 100 mL of water (density of water = 1.00 g/mL).…

A: %w/w = mass of solute/mass of solution*100

Q: You are trying to prepare 75 mL of 1.00 M sodium chloride solution. How many grams of sodium…

A: Given data,The volume of NaCl = 75 mLThe concentration of NaCl = 1.00 MMolar mass of NaCl =…

Q: Calculate the normality of 0.321 g sodium carbonate when it mixes in a 250 mL solution.

A: Given,  Mass of Sodium carbonate (Na2CO3) = 0.321 g Molat mass of Na2CO3 = 106 g/mol Mole = mass/MM…

Q: In the laboratory you dilute 2.50 mL of a concentrated 12.0 M hydroiodic acid solution to a total…

A: According to volumetric principle M1 = Molarity of HI before dilution = 12.0 M V1 = Volume of HI…

Q: What does it mean when we say that a 200-mL sample and a 400-mL sample of a solution of salt have…

A:

Q: A student in a lab takes 16.0 M aqueous stock solutions and dilutes it in a 500 mL volumetric flask…

A: Molarity of Stock Solution = M = 16.0 MVolume of Solution on 1st dilution = V1 = 500 mLVolume of…

Q: An aqueous solution of 2.54 M silver nitrate, AgNO3, has a density of 1.35 g/mL.The percent by mass…

A: The percent by mass of AgNO3 in the solution is calculated in step two.

Q: In the laboratory, a student dilutes 23.8 mL of a 8.98 M hydrochloric acid solution to a total…

A: We have given that  a student dilutes 23.8mL of a 8.98M hydrochloric acid solution to total volume…

Q: In the laboratory you dilute 2.56 mL of a concentrated 12.0 M hydrochloric acid solution to a total…

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

Q: In the laboratory you dilute 2.53 mL of a concentrated 12.0 M hydrochloric acid solution to a total…

A:

Q: What volume (mL) of a concentrated solution of calcium chloride (9.00 M) must be diluted to 350. mL…

A: Since we are just diluting the concentrated solution  Hence the moles of calcium chloride will be…

Q: Assuming the concentration of a solution is 0.457 M, what volume of this solution contains 101.2 g…

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: In the laboratory you dilute 5.20 mL of a concentrated 6.00 M hydroiodic acid solution to a total…

A: The Concentration of the dilute solution can be calculated as,  M1V1 = M2V2 where, M1 = Initial…