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: A chemist prepares a solution of iron(II) bromide (FeBr,) by measuring out 58.6 g of iron(II)…

A: Given, Mass of iron (II) bromide (FeBr2) = 58.6 g Volume of the flask = volume of the solution = 250…

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

A:

Q: How many mL of water do you need to add to 126 mL of a 0.53 M solution of acetone in order to create…

A: The solution of acetone contain acetone as a solute and water as a solvent. Thus for dilution of…

Q: A chemist prepares a solution of barium chloride (BaCl₂) by measuring out 9.93g of barium chloride…

A: The objective of this question is to calculate the concentration of a barium chloride solution in…

Q: A student weighs out a 1.75 g sample of NaCl, transfers it to a 250. mL volumetric flask, adds…

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Q: A 77.0 mL77.0 mL portion of a 1.70 M1.70 M solution is diluted to a total volume of 258 mL.258 mL. A…

A: given data  A 77.0 mL or 1.70 M total volume = 258 ml after dilution  129 mL portion of that…

Q: KCO3 3. Suppose 36.0246 g of potassium carbonate is dissolved in water to give a final solution…

A: Molarity = Number of mols of solute/Volume of solution in L Number of mols = Mass/Molar mass…

Q: Suppose 17.0g of potassium bromide is dissolved in 200.mL of a 0.50 M aqueous solution of silver…

A: First we would write a balanced chemical reaction between potassium Bromide and silver nitrate using…

Q: A chemist places 2.6428 g of NaCl in a 100 mL volumetric flask and adds water to the mark and calls…

A: The solution is given below -

Q: Potassium bromide (KBr) has a molar mass of 119 g/mol. If I want to make 82.0 mL of a 0.709 M…

A:

Q: Suppose 31.1 g of barium nitrate is dissolved in 200. mL of a 0.60 M aqueous solution of sodium…

A:

Q: Suppose 30.3 g of potassium iodide is dissolved in 350. mL of a 0.30 M aqueous solution of silver…

A: Given: Mass of potassium iodide( KI ) = 30.3 g Molar mass of potassium iodide = 166g/molTherefore,…

Q: Suppose 17.0g of barium nitrate is dissolved in 100.mL of a 0.70 M aqueous solution of…

A:

Q: Potassium bromide (KBr) has a molar mass of 119 g/mol. If I want to make 82.0 mL of a 0.167 M…

A: Since, Molarity is the number of moles of solute dissolve in one litre of the solution. Then,

Q: A solution of cobalt(II) chloride is analyzed, and the concentration of cobalt(II) ions is found to…

A: Given,  Concentration of cobalt(II) ions(Co2+) = 0.27 mol/L Concentration of Chloride ion (Cl^-1) =…

Q: A chemist needs 11.32 mL of 1.82 M HCl. What volume in mL of 3.74 M HCl must be diluted in water to…

A: To make 1.83M, 11.32mL HCl from 3.74M HCl, we have to take out some specific volume of 3.74M HCl and…

Q: An aqueous solution of KBr is prepared by dissolving 85.7 g of KBr in enough water to make 2.89 L of…

A: GIven: Mass of KBr=85.7 g Molar mass= 119.002 g/mol The volume of the solution=2.89 L Molarity of…

Q: calculate the concentration of dye in the resulting mixture in units of mg of dye / L of solution.

A: Given :-  initial concentration of food dye solution = 45.1 mg of dye / L of solution  initial…

Q: Suppose 1.44 g of potassium sulfate is dissolved in 150. ml. of a 54.0 m M aqueous solution of…

A: In the given reaction concentration of K+ can be calculated as.Calculate the number of moles of the…

Q: Suppose 5.53g  of sodium chloride is dissolved in  100.mL  of a  0.50 M  aqueous solution of…

A:

Q: The vinegar solution you can purchase at the store is about 5% by mass acetic acid. It will be…

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Q: What volume (in ml) of concentrated HCl (with a concentration of 10 M) do you need to prepare 10 ml…

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Q: An aqueous solution of sodium hydroxide, NaOH , is made by dissolving 15.6 grams of sodium hydroxide…

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

Q: Suppose 2.01g  of sodium nitrate is dissolved in  350.mL  of a  31.0mM  aqueous solution of…

A:

Q: A)  Calculate the molarity 12.21 mg KI in 107.6 mL of solution         Express your answer using…

A: Molarity of a solution is defined as the number of moles of solute to the total volume of solution.

Q: A 215 mLmL sample of ocean water contains 6.9 gg of NaClNaCl What is the molarity of the solution…

A: The ratio of moles of solute to the volume of solution in liters is known as molarity.

Q: A 50.0 mL aqueous stock solution of 0.67 M HCl is diluted to a final volume of 188.1 mL. What is the…

A: The volume of stock solution before dilution (Vi) = 50.0 mL The molarity of stock solution before…

Q: Potassium bromide (KBr) has a molar mass of 119 g/mol. If I want to make 82.0 mL of a 0.626 M…

A: Molar mass of KBr = 119 g/mol Volume of solution =82 mL = 0.082 L  Molarity = 0.626 M  We have to…

Q: What volume of a 12.0 M acid stock solution is needed to prepare 40.0 mL of a 5.00 M acid solution?…

A:

Q: In order to prepare a certain volume of solution with a desired concentration, you would need to…

A:

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

A: Given: Mass of cylinder = 4.0 g.Mass of cylinder with thiosulfate = 46.56 g.And the volume of the…

Q: Potassium bromide (KBr) has a molar mass of 119 g/mol. If I want to make 82.0 mL of a 0.231 M…

A:

Q: You are asked to create a 0.35 M solution of calcium chloride (CaCl2) using a 250.0 mL volumetric…

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Q: One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaminants in water is…

A: The chemical reaction that takes place between copper chloride and silver nitrate is shown below:…

Q: A 2.5 L sample of a 6.2 M NaCl solution is diluted to 65 L . What is the molarity of the diluted…

A:

Q: How many moles of solute are present in 300. mL of a 0.60 M solution of NaOH? Please report your…

A:

Q: Suppose 0.433 g of zinc chloride is dissolved in 150. mL of a 19.0 m Maqueous solution of potassium…

A: Given, The mass of zinc chloride = 0.433 g. Volume of potassium carbonate = 150. mL Molarity of…

Q: Your lab partner gets out a 100-mL graduated cylinder and a 100-mL beaker to prepare 100.00 mL of…

A: We already have a 1.201 M solution. We need to dilute it to make 100ml of 0.1201 M

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: 1. How many moles of potassium chloride, KCl, are in 35.0 g of KCl. 2. Enter your answer with both…

A: 1.) Given  mass of KCl = 35.0 g    Required data - molar mass of KCl = 74.5 g/mol   Formula used…

Q: Potassium bromide (KBr) has a molar mass of 119 g/mol. If I want to make 82.0 mL of a 0.941 M…

A: The molarity of the solution is defined by the number of moles of solute present in one liter of…

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.