A mixture of ethanol and water is prepared in the lab. Ethanol has a density of 0.789 g/mL. 47.3 mL of ethanol is added to 164.8 grams of water. Find the concentration of this solution in units of mass percent.

Q: Calculate parts per million Br- in a sample of seawater that is 0.865 mMBr- with a density of 1.025…

A: The concentration of Br- in ppm is given below

Q: A chemist needs to know the mass of a sample of Na, SO, to 4 significant digits. She puts the sample…

A: The significant figures (also known as the significant digits or precision) of a number written in…

Q: A chemist mixes 29.8 g of acetone with 38.5 g of isopropenylbenzene and 57.3 g of acetic acid.…

A: Given that, a mixture contains 29.8 g of acetone, 38.5 g of isopropenylbenzene, and 57.3 g of acetic…

Q: A chemist must dilute 35.3 mL of 1.80 M aqueous aluminum sulfate (Al, (So)) solution until the…

A:

Q: A chemist mixes 94.1 g of acetone with 58.0 g of thiophene and 82.4 g of methanol. Calculate the…

A: Interpretation-  To determine the percentage by mass for each component , component are given in the…

Q: A chemist prepares a solution of barium chloride (BaCl,) by measuring out 39. g of barium chloride…

A:

Q: A chemist mixes 49. g of chloroform with 53. g of acetyl bromide and 29. g of acetone. Calculate the…

A: Given: Mass of chloroform = 49 g Mass of acetyl bromide = 53 g Mass of acetone = 29 g.

Q: student is asked to make up a 16% sodium chloride solution. She makes the solution by weighing an…

A: Given that: Mass of the beaker = 98.56 g Mass of the beaker and sodium chloride = 114.71 g Mass of…

Q: A chemist must prepare 250. mL of 5.00 mM aqueous copper(II) fluoride (CuF,) working solution. He'll…

A: C1V1 = C2V2 C1 is concentration of stock solution V1 is volume of stock solution V2 is volume of…

Q: The dishwasher broke down. You want to use chlorine bleach solution to sanitize you’re dishes at…

A: To calculate the amount of bleach , we would first calculate the volume of whole sink . Also it is…

Q: A chemist makes 770. mL of aluminum sulfate (Al, (SO,),) working solution by mol adding distilled…

A: Answer: concentration of the chemist's working solution is 0.589 mol/L

Q: Volume occupied by 100 g of the following: Solution: Volume = 83.7 cm^3 Metal Bar: Volume = 9.84…

A: Volume occupied by 100 g of the Solution and metal bar is given  Solution: Volume = 83.7 cm^3 Metal…

Q: You have a 3.5 M H3PO4 solution available. Complete the following questions about this solution:…

A: The process by which the concentration of a solution is reduced by adding a suitable amount of…

Q: Calculate the volume in liters of a 0.81M barium chloride solution that contains 175. g of barium…

A: Given Molarity = 0.81 M Mass = 175 g Standard value  Molar mass of BaCl2 = 208.23

Q: When determining the density of a pure liquid or a solution, the temperture of the sample must be…

A: The volume of liquids will increase with increase in temperature.

Q: A chemist prepares a solution of copper(II) fluoride CuF2 by measuring out 0.159μmol of copper(II)…

A: Given :- number of moles of CuF2 = 0.159μmol  Volume of solution = 250. mL  To calculate :-…

Q: Calculate the volume in liters of a 0.0058 mM potassium permanganate solution that contains 75.0 g…

A: Interpretation: The volume of potassium permanganate solution is to be determined from the given…

Q: A student prepared a 12.5 M stock solution of CaCl2. What volume of the stock solution in…

A:

Q: A chemist wants to make 5.5 L of a 0.330 M CaCl2 solution. Part A What mass of CaCl2 (in g) should…

A: Generally molarity is calculated by using following equation.

Q: When determining the density of a pure liquid or a solution, the temperature of the sample must be…

A: Density of a substance is the ratio of its mass and volume. It is a measure of mass per unit volume.…

Q: A chemist prepares a solution of barium chlorate (Ba(ClO,)) by measuring out 2.0 g of barium…

A: W know that Molarity = number of moles of solute / volume of the solution in L Given that Mass of…

Q: A chemist must dilute 39.0 mL of 2.99 M aqueous aluminum chloride (AlICi,) solution until the…

A:

Q: Calculate the volume in milliliters of a 1.8M potassium iodide solution that contains 75.0 g of…

A:

Q: A chemist must dilute 48.0 mL of 3.86 M aqueous iron(III) bromide (FeBr,) solution until the…

A: Given : Initial volume of solution = 48.0 mL Initial concentration of FeBr3 = 3.86 M And final…

Q: A chemist prepares a solution of barium chlorate (Ba (CIO3),) by measuring out 13.7 g of barium…

A: Concentration = number of moles/volume(in L)  And,  Number of moles = mass/molar mass

Q: What is the percent by mass NaCl of a solution that contains 85.1 grams of NaCl and 119.1 grams of…

A: Percentage by mass (% m/m or % w/w )=mass of solutemass of solution×100%

Q: A chemist must dilute 62.6mL of 2.81M aqueous sodium thiosulfate Na2S2O3 solution until the…

A: Here given, Initial volume (V1) = 62.6 mL Initial strength (S1) = 2.81 M Final volume (V2) = ? Final…

Q: What mass of a 6.0% NaOH solution contains 12 grams of NAOH? Enter your answer in grams in the space…

A: The mass of solute in gram present in 100 g solution is known as the mass percent concentration of a…

Q: A chemist must dilute 33.3 mL of 592. mM aqueous barium chlorate (Ba(CIO,)) solution until the…

A: During dilution the formula to be used is V1 S1 = V2 S2 where, V1  = initial volume S1 = initial…

Q: A chemist must dilute 20.6 mL of 22.0 mM aqueous aluminum sulfate (Al, (SO,)) solution until the…

A: In dilution, the millimoles or moles of solute remains same before & after dilution (Dilution…

Q: 100 mL of water was mixed in 100 mL of 100 Proof alcoholic beverage. What is the percentage by…

A: percent by volume one of the concentration unit  here we are required to find the percentage by…

Q: I have the density of solution that is 1.092g/ml in an unknown solution, how can I get the sucrose…

A: Plot of density vs % of sucrose solution

Q: A chemist must dilute 54.1 mL of 6.21 M aqueous potassium iodide (KI) solution until the…

A:

Q: A chemist must prepare 675. mL of 42.0 µM aqueous silver(II) oxide (AgO) working solution. He'll do…

A: The volume of solution to be made is 675 mL = 0.675 L                                  ( since 1 L =…

Q: A chemist prepares a solution of barium acetate (Ba(C,H;O2),) by measuring out 54. g of barium…

A:

Q: The diagram represents a solution an element a compound a heterogeneous mixture

A: In this question, we will Identify this give diagram represent , a solution or a Element or a…

Q: A chemist prepares a solution of sodium carbonate (Na, CO,) by measuring out 101. g of sodium…

A:

Q: 4. (a) The sodium ion did not take part in this chemical reaction. What do we call such an ion? (b)…

A: sodium ions are spectator ions and undergoes solvation that is gets surrounded by negative pole of…

Q: A chemist must dilute 20.3 mL of 1.37 M aqueous calcium bromide (CaBr,) solution until the…

A: Final volume on dilution can be calculated by the following formula. M1V1=M2V2V2=M1V1M2M1=initial…

Q: A chemist prepares a solution of potassium dichromate (K,Cr,O,) by measuring out 35. g of potassium…

A: Molarity of a solution represents the concentration of a solution, which is expressed as mol/L.…

Q: A chemist dissolves 407. mg of pure barium hydroxide in enough water to make up 50. mL of solutio…

A: Mass of Ba(OH)2 = 407 mg Molar mass of Ba(OH)2 = 171 g/mol Moles = mass/MM   = 407/171 = 2.38 mmol…

Q: When determining the density of a pure liquid or a solution, the temperature of the sample must be…

A: Density is obtained by dividing the mass to the volume. Density of gases is lower than that of the…

Q: A chemist must dilute 15.5 mL of 5.62 M aqueous sodium chloride (NaCl) solution until the…

A: Given, initial concentration of aqueous solution of NaCl =5.62 Minitial volume of solution =15.5…

Q: What is the normality of the new. solution if a 200.0 mL of a 0.40 M HCl solution is diluted with…

A:

Q: umol A chemist must prepare 975. mL of 16.0 µM aqueous silver(II) oxide (AgO) working solution.…

A: Given : Final concentration of AgO = 16.0 µM Final volume of solution = 975 mL And Initial…

Q: 2. A solution is made by dissolving 175 g of sodium chloride in 1525 g of water. What is the percent…

A:

Q: A chemist must dilute 88.2mL of 6.18mM aqueous copper(II) fluoride CuF2 solution until the…

A: If a concentrated solution of Molarity M1 and volume V1 is diluted by adding water to a solution of…

Q: What is the percent by mass KBr of a solution that contains 88.7 grams of KBr and 119.7 grams of…

A: Given mass of KBr = 88.7 g Given mass of water = 119.7 g Mass percent is tells the concentration of…

Q: A 24.5 g sample of solution has a density of 0.768 g/mL. What is the sample volume (in mL)?

A: Density is a physical quantity that can be determined with the help of the mass and volume of the…