12. a. What is the molarity of a solution made by mixing 125 mL of 5.00 M H3PO4 with 325 mL H2O? b. What is the molarity of a solution make by mixing 75 mL of 0.25 M Na2SO4 with 150 mL H2O? c. What volume of 9.00 M HNO3 is needed to make 675 mL of 0.750 M HNO3? d. What volume of 15.0 M H3PO4 is needed to make 750.0 mL of 3.0 M H3PO4?

Q: 100.0 mL of a 0.500 M solution of KBr is diluted to 500.0 mL. What is the new concentration of the…

A: The given problem relates to stock dilution, so we can use the below relation to calculate the final…

Q: 38. What is the total number of grams of KCI (molar mass = 74.6g/mol) in 1.00 L of 0.200 molar…

A: Question 38) To find mass of KCl, we need to use the formula of molarity which is given as follows:-…

Q: Calculate

A:

Q: 400.0 mL of a 0.455 M solution of NaCl is diluted to 900.0 mL. What is the new concentration of the…

A: Given, 400.0 mL of a 0.455 M solution of NaCl is diluted to 900.0 mLwe are asked to calculate the…

Q: 4. For the following reaction, OH O OH salicylic acid C7H6O3 138.12 g/mol acetic anhydride C4H603…

A:

Q: What is the molarity of the solution prepared by diluting 10.0 mL of 0.472 M  Mg(NO3)2 solution to…

A: The molarity for a dilute solution is calculated as follows

Q: 8.49 mL of 4.00 M acetone is combined with 10.0 mL of 1.00 M HCl, 15.0 mL of 0.00500 M I2 and 7.95…

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Q: Calculate the number of grams of solute in each of the following solutions. a.) 2.50 L of a 3.00 M…

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

Q: 2.01g of NaBr dissolves in 10.0 mL aqueous solution for an overall mass of 11.33g. a. What is the…

A: Given that, Mass of NaBr dissolved in water m = 2.01 g Mass of NaBr solution = 11.33 g Volume of…

Q: How many g of sodium ions are in 250 mL of 0.20 M NazSO4 solution? (Na2SO4: 156 g/mol , Na: 23…

A: first find the amount of Na2SO4 then find Fraction composition of Na in  Na2SO4 Then Multiply…

Q: What is the molarity of a solution that contains 140 grams of calcium chloride (CaCl2) dissolved in…

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Q: The mass/volume percent (m/v %) of a solution is defined as the ratio of the mass of solute thatis…

A: a. Steps to Convert Units of Molarity (M) to Mass/Volume Percent (m/v %)1. Identify the Molarity…

Q: 1.00 L aqueous solution that contains 5.00 g MgCl2 was diluted to 2.00L. a. what is the…

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Q: A solution was prepared by mixing 60.00 mL of 0.100 M HNO3 and 130.00 mL of 0.200 M HN03. Calculate…

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Q: Calculate the number of moles of solute present in 45.0 mgmg of an aqueous solution that is 1.30 m…

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Q: Calculate the quantity of 0.250 M NaCI needed to prepare 250 ml of 0.010 M NaCl. Оа.1 ml ОБ. 100 mL…

A:

Q: A. Describe how you would prepare 300 mL of 0.500M NaCI from water and dry NaCl. b. How would you go…

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Q: 5.) 0.155 g of AGNO3 in 10.0 mL of solution. B. How many grams of solute are needed to prepare each…

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Q: a. 370 mL of a 0.35 M NaNO3 solution: mol NaNO3 b. 288 mL of a 1.8 M HNO3 solution: mol HNO3 c. 4.4…

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Q: What volume of a 0.135 M KNO3 solution contains 3.41 g of KNO? O A) 0.51 L B) 0.250 L C) 0.54 L O D)…

A: Ans

Q: Calculate the molarity of a solution prepared by diluting 165 mL of 0.688 M CaCl2 to a final volume…

A: Given:

Q: Calculate the molarity of a solution of 579.6 g ZNSO4 (molar mass 161.47 g/mol) in 6.5x10“ mL of…

A: Consider the given information is as follows; Mass of ZnSO4 = 579.6 g Molar mass of ZnSO4 = 161.47…

Q: rinda toy 3. The EPA has set the limit for chromium in drinking water to 100 ppb. Calculate the…

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Q: 1. What is the concentration of lithium ions in .315 M Li2HPO4? 2. how many moles of HCl are there…

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Q: a. If 15.0 ml. of HSOeare required to neutralize 25.0 ml of 0.660N KOH solution, to what volume…

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

Q: 2. 2.01g of NaBr dissolves in 10.0 mL aqueous solution for an overall mass of 11.33g. a. What is the…

A: 2.Given that  Mass of NaBr dissolved m = 2.01 g Overall mass of NaBr solution = 11.33 g Volume of…

Q: B. 4.15 g C. 10.4 g D. 1.49g Q2. A 47.27 g of Ca(OH)2 is dissolved in water to make 2.5 L of…

A: