1. You have a stock solution of 14.2 M NH3. How many milliliters of this solution should you dilute to make 1000 mL of 0.210 M NH3?         Express your answer using three significant figures.   2. If you take a 15.0-mL portion of the stock solution and dilute it to a total volume of 0.700 L, what will be the concentration of the final solution?        Express your answer using three significant figures.

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A: Molarity of a solution is defined as the number of moles of solute present in one litre of the…

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…

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Q: A chemistry student weighs out 0.0261 g of acrylic acid (HCH,CHCO2) into a 250. mL volumetric flask…

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Q: A student takes a sample of KOH solution and dilutes it to 100.00 mL of water. The student…

A: Dilution of solution can be done by adding water in it and the concentration of original solution…

Q: An analytical chemist weighs out 0.029 g of an unknown monoprotic acid into a 250 mL volumetric…

A: Assuming the monoprotic acid is HA. Hence the reaction between the acid and base is  HA + NaOH…

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 chemist adds 900.0 mL of a 3.98 g/dL barium chloride (BaCi,) solution to a flask. Calculate the…

A: To solve this problem we will calculate the mass of BaCl2

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Q: In the laboratory, a student dilutes 16.8 mL of a 6.40 M hydrochloric acid solution to a total…

A: • Before dilution,Concentration of HCl solution (M1) = 6.40 MVolume of HCl solution (V1) = 16.8 mL•…

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: An analytical chemist weighs out 0.023 g of an unknown monoprotic acid into a 250 mL volumetric…

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Q: You perform your first titration using your NaOH with a KHP solution. Your KHP solution is made with…

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Q: a) If 42.1 mL of 1.02 M sodium hydroxide, measured using a graduated cylinder, is placed in a beaker…

A: Beaker doesn't exactly measure the volume of any substance. For the measurement of volume one should…

Q: You have 450 mL of a 0.125 M HCI solution and you want to dilute it to exactly 0.100 M How much mL…

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

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: You are asked to conduct an experiment where you will combine hydrochloric acid nd sodium hydroxide…

A: To find the total volume of the solution in the beaker at the end of the experiment, you need to add…

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: In the laboratory, a student dilutes 27.2 mL of a 8.33 M hydroiodic acid solution to a volume of…

A: hydroiodic acid solution ( HI ) Initial volume = V1 = 27.2 mL Initial Concentration = M1 = 8.33 M…

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

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Q: 45. You have three sodium carbonate solutions on a lab table in front of you. All of the solutions…

A: The dilution law is shown below: M1×V1 = M2×V2 M1 = molarity for stock solution M2 = molarity for…

Q: es this solution with 0.0600 M NaOH solution. When the titration reaches the equivalence point, the…

A: We should equal equivalent of both acid and NaOH ion to get molarity mass of acid  Equivalent =…

Q: If you had to prepare a 0.200 M HCl solution from 17.0 mL of a 2.60 M HCl stock solution, to what…

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Q: Calculate the molarity of each solution. 1. 0.142  mol  of sucrose in 696  mL  of solution…

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

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Q: A titration is performed to determine the amount of sulfuric acid, H2SO4, in a 7.51 mL sample taken…

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Q: Suppose you want to make a 0.75 M solution of copper (II) sulfate in a 250 mL volumetric flask. What…

A: To calculate mass of CuSo4 required to make 0.75M solution in 250 ml.

Q: .To find the concentration of an acid solution, pure sodium carbonate can be used as a standard. In…

A: Given: Mass of sodium carbonate i.e. Na2CO3 used = 2.15 g. And the volume of HCl solution used =…

Q: volume of 34.2 mL of a 1.16 M KMnO4 solution is mixed with 16.7 mL of a 0.392 M KMnO4 solution.…

A: Given, Note: 1L = 1000 mL Solution I Concentration of KMnO4 solution I = 1.16 M = 1.16 mol/L Volume…

Q: A lab prepared a solution of sulfuric acid with a volume of 5.0x10-4 m3. The solution is further…

A: Molarity is defined as the number of moles of solute dissolved in 1 L of solution. The unit of…

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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: A 2.2964 g sample of Na₂ CrO4 (MW = 161.97 g/mol) is dissolved in 100.0 mL of water. Assume the…

A: According to the question we have a solution of sodium chromate (Na2CrO4) and water (H2O) where Mass…

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 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: An analytical chemist weighs out 0.167 g of an unknown monoprotic acid into a 250 mL volumetric…

A:

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?…

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Q: Determine the mass of silver chromate that will dissolve in 1.0-gallon of water. (Note: 1 gal =…

A: solubility product is defined as the product of concentration of ions formed when a sparingly…

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

A: The mass of empty graduated cylinder = 6.250 gThe mass of sodium thiosulfate with the graduated…

Q: 1)A 191 −mL sample of a 1.4 MM sucrose solution is diluted to 450 mL. What is the molarity of the…

A: Since you have posted a question with multiple questions, we will solve first question for you. To…

Q: 10. Concentrated nitric acid, HNO3(aq), has a concentration of 15.7 M. What volume of concentrated…

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Q: You have a stock solution of 5.0 M NaCl. If you want to make 300.0 mL of 0.150 M NaCl, how many…

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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…

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Q: Given a solution of ammonia that is 14.8 M, how many milliliters of this solution should dilute to…

A: Number of moles of solute present in 1 liter of solution is known as molarity of the solution.

Q: You were tasked to prepare KNO3 solution with a concentration of 0.866 M. What volume (in mL) of…

A: When we make solution of any concentration from the given stock solution then we use the equation…