A student dissolved 1.78 g of magnesium chloride in 0.500 L of water to prepare a solution of concentration M. From that solution he took a volume of 0.05 L in another flask (S). Calculate the number of moles of magnesium chloride in the second flask (S). (show all your calculations, units and significant figures are important)

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: possessed by it? True or False? 15). 3 g of Sodium metal and a large amount of ammonia form a…

A: Solute: the component of a solution which is present in lesser amount.Solvent: the component of a…

Q: A 10.6 g sample of an aqueous solution of nitric acid contains an unknown amount of the acid. If…

A:

Q: A 9.47 g sample of an aqueous solution of hydroiodic acid contains an unknown amount of the acid. If…

A:

Q: A solution is prepared by dissolving 3.2 grams of NaCl (MM=58.44 g/mol) in enough water to make…

A: The molarity is a concentration term which is explained as the number of moles of solute dissolved…

Q: What volume of 6.0 M NaOH is needed to make 1.00L of 0.500 M NAOH solution? mL (Report your answer…

A: Consider the given information is as follows; Initial concentration M1 = 6.0 M Initial volume (V1) =…

Q: In the laboratory, a student dilutes 22.9 mL of a 11.9 M nitric acid solution to a total volume of…

A: Moles of solute remain constant during dilution. Moles of solute = molarity x volume of solution…

Q: How many grams of chlorine are in 269 milliliters of a 1.362 M MgCl2 solution? Hint: the solubility…

A: Molarity is the moles of solute present per unit of volume. So we can determine moles of solute if…

Q: The mass percentage of hydrochloric acid within a solution is 40.00%. Given that the density of this…

A: Given: Mass percent = 40% Density = 1.200 g/mL Molarity = ?

Q: Consider a solution prepared by adding 2.70 grams acetic acid to 122.8 grams of water :  a. what is…

A: Mass percentage of a component is calculated by dividing the mass of the component with the total…

Q: The mass of solute per 100 mL of solution is abbreviated as (m/v). Mass is not technically the same…

A: Solution : % (w/v) = mass of solute / volume of solution × 100 36 % = mass of sucrose / 645 ml So,…

Q: In the laboratory, a student dilutes 29.3 mL of a 6.04 M hydroiodic acid solution to a total volume…

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

Q: what masses of solute and solvent are present?

A: Number of moles = Molarity × Volume(L)  Molar mass of LiCl = 42.394 g/mol  Solution = solute +…

Q: One brand of laundry bleach is an aqueous solution containing 4.00% sodium hypochlorite (NaOCI) by…

A: Molarity is defined as a number of moles of solute dissolved in one liter of solution.…

Q: A solution is created by dissolving 12.0 grams of ammonium chloride in enough water to make 265 mL…

A: The number of moles (n) of ammonium chloride is calculated by the expression given below in which m…

Q: If I dilute 75mL of 0.40 M CaF2 solution to a final volume of 275 mL, what will be the molarity of…

A: Given :  Initial molar concentration of CaF2 solution = 0.40 M  Initial volume = 75 mL  Final volume…

Q: How many grams of chlorine are in 101 milliliters of a 1.474 M MgCl2 solution? Hint: the solubility…

A:

Q: A student dissolved 4.52 g of Mg(NO3)2(s) in enough water to make 400 mL of solution. What is the…

A: Given: Mass of Magnesium nitrate = 4.52g Volume of Solution = 400mL

Q: The mass percentage of hydrochloric acid within a solution is 32.00%. Given that the density of this…

A: Given: The mass percentage of HCl solution = 32.00% The density of the solution = 1.161 g/mL We have…

Q: Suppose you need to prepare 125.5 mL of a 0.256 M aqueous solution of NaCl.  What mass, in grams,…

A: * Volume of solution = 125.5mL          But 1 mL = 10-3 L * Volume of solution = 125.5 × 10-3 L…

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

A:

Q: Maggie filtered out a sample of copper (II) chloride, CuCl2 from a local pond, and found its mass to…

A: Molarity (M) :-  The number of moles of solute present in dissolved state in one litre of solution…

Q: Describe how you would prepare 100 m L of a solution that is 22 % acetic acid by volume .

A: Volume/volume percentage (v/v%) is calculated by dividing the volume of the solute by the total…

Q: The mass of solute per 100 mL of solution is abbreviated as (m/v). Mass is not technically the same…

A:

Q: An ethanol-water solution has been prepared by dissolving 10 mL of ethanol (d=0.789 g/mol) in a…

A: Given:- Volume of ethanol = 10 mL Density of ethanol = 0.789gml Volume of solution = 100 mL Density…

Q: If 22.6 grams of an aqueous solution of zinc chloride, ZnCl,, contains 5.33 grams of zinc chloride,…

A:

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: A dilute solution of sodium hydroxide was prepared by adding 42.1 mL of 1.02 M sodium hydroxide,…

A:

Q: For convenience, one form of sodium hydroxide that is sold commercially is the saturated solution.…

A: Concentration of the stock solution of sodium hydroxide saturated solution is given as 19.4 M.…

Q: An aqueous solution of sodium fluoride, NaF, contains 1.16 grams of sodium fluoride and 17.5 grams…

A:

Q: What is the concentration of the diluted solution?

A:

Q: You have 291 mL of a 1.25 M potassium chloride solution, but you need to make a 0.50 M potassium…

A: Given data is as follows: The initial volume of potassium chloride V1= 291 mL The initial…

Q: An aqueous solution is 10.0% by mass hydrochloric acid, HCl, and has a density of 1.05 g/mL.The…

A: 10% by mass HCl means, 10 g HCl in 100 g solution. Mass of solute (HCl) = 10 g Number of moles of…

Q: In many areas, the drinking water standard for nitrate ions is 5.00 ppb. Calculate the mass, in μg,…

A:

Q: Part A A sample of 7.92 g of Mg(OH)2 is added to 24.2 mL of 0.225 MΗΝΟ, Part B Part C • Part D •…

A:

Q: What mass of KBr (in grams) should you use to make 250.0 mL of a 1.20 M solution of KBr? Express the…

A: We have to predict the mass of salt needed.

Q: How many grams of dextrose are needed to make 675 mL675 mL of a 26.0% (w/v)26.0% (w/v) dextrose…

A:

Q: Suppose that 2.89 L of 6.75 M potassium carbonate is added to 1.38 L of 1.57 M magnesium nitrate.…

A: In this question, potassium carbonate is added to magnesium nitrate, after reaction , total…

Q: One brand of laundry bleach is an aqueous solution containing 4.00% sodium hypochlorite (NaOCI) by…

A: 0.517 M

Q: A solution of sodium hydroxide has a density of 1.14 g/mL and contains 32.8% sodium hydroxide by…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: An aqueous solution is 10.0 % by mass hydrochloric acid, HCl, and has a density of 1.05 g/mL. The…

A:

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: 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 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: A 7.26 g sample of an aqueous solution of hydroiodic acid contains an unknown amount of the acid. If…

A: Mass of hydroiodic acid (HI) can be determined by calculating the number of moles of sodium…

Q: Commercial vinegar is essentially a solution of acetic acid in water. A bottle of vinegar has 3.78 g…

A:

Q: To what volume should you dilute 50 mL of a 13 M stock HNO3 solution to obtain a 0.105 M HNO3…

A: The volume of diluted solution can be calculated using the equation (1). In this equation, M1 and V1…

Q: You need to make an aqueous solution of 0.196 M iron(III) sulfate for an experiment in the lab,…

A: First of all, we will calculate the number of moles of iron(III) sulfate using molarity equation.…

Q: The mass of solute per 100 mL of solution is abbreviated as (m/v). Mass is not technically the same…

A: %(w/v) = 100 x mass of solute/Volume of solution in mL

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.