Chapter 4 Concentration 1. What is the molarity of a solution in which 0.45 grams of sodium nitrate are dissolved in 265 mL of solution? 2. What will the volume of a 0.50 M solution be if it contains 25 grams of calcium hydroxide? 3. How many grams of ammonia (NH,) are present in 5.0 L of a 0.050 M solution? If I make a solution by adding water to 35 mL of methanol (CH,OH) until the final volume of the solution is 275 mL, what is the molarity of methanol in this solution? (The density of methanol is 0.792 g/mL) 4. Dilution

Q: How much Ba(OH)2 in mg per mL solution is contained in 0.400 M Ba(OH)2 (FW 171.34 g/mol)

A: Given: Concentration of Ba(OH)2=0.400M=0.400 mol/L Ba(OH)2 in mg/mL=?

Q: A 10.00 mL of vinegar solution is titrated with 39.0 mL of 0.20 M NaOH.The calculated mass percent…

A: We have to calculate the density of vinegar .

Q: Calculate the volume of 0.742 M HNO3 that can be neutralized by 60.9 mL of a 1.63 M KOH solution.…

A: Given : Concentration of HNO3 = 0.742 M Concentration of KOH = 1.63 M And volume of KOH solution =…

Q: volume (mL) of 0.105 M HClO4 solution is required to neutralize

A: Since the acid is monoprotic while the base is diprotic And according to the reaction below

Q: 1.45 g Mg(OH)2 (58.32g/mol) is added to 45.0 ml of 1.00M HCL solution, how many grams of…

A:

Q: 1).  Determine the concentration of a solution prepared by diluting 25.0 mL of a stock 0.188 M…

A: Since, this is multiple questions we are answering first question.

Q: Whens 28 g of KOH dissolves in enough water to make 250 mL of solution, what is the resulting…

A: The question is based on the concept of molarity.    it is defined as number of moles of solute…

Q: What volume of 0.512 M NaOH solution would be required to neutralize 32.0 mL of 0.446 M HNO3…

A: Neutralization reaction is the one in which an acid reacts with a base and form a salt and water. At…

Q: A 10.00 mL of vinegar solution is titrated with 39.0 mL of 0.20 M NaOH.The calculated mass percent…

A: Givenvolume of vinegar solution=10 mlmolarity of NaOH=0-2Mvolume of NaOH=39 mlmass% =5.2%molae…

Q: Hard water often contains dissolved Ca2+ and Mg2+ ions. One way to soften water is to add…

A:

Q: Calculate the molarity of each of these solutions. a. A 4.053-g sample of NaHCO3 is dissolved in…

A:

Q: 235 mg of magnesium chloride is added to 125 mL of water. What is the concentration of ions in the…

A: Molarity (M): Molarity is number of moles of the solute present in the one liter of the solution.…

Q: 13.Calculate the concentration in g L-for each of the following solutions. a) 0.25 g barium nitrate…

A: Concentration of a solution ( in g/L ) is the ratio of mass of solute in grams to volume of solution…

Q: While working in a laboratory, you are attempting to minimize the acid-base properties of an unknown…

A: HCl reacts with NaOH in step 1 . HCl is present in excess and then the leftover /excess HCl react…

Q: Suppose you need 300 mL of 0.250 M NaCI, but the only supply of sodium chloride you have is a…

A: Given: The molarity of the NaCl solution after dilution = 0.250 M The volume of the NaCl solution…

Q: What mass of potassium nitrate would have to be dissolved in 21.0 g of water in order to make a…

A: Strength of solution = 45% Mass of water (solvent) = 21g Solute = potassium nitrate (KNO3)

Q: 34. What volume of 0.782 M HCI is needed to neutralize 29.1 grams of Al(OH)3? 3 HCI (aq) + Al(OH)3…

A: Molarity (M) :-  The number of moles of solute dissolved in one litre of solution is known as…

Q: A 22.1 g sample of SrCl2 is dissolved in 112.5 mL of solution. Calculate the molarity of this…

A:

Q: What volume of a 0.337 M hydrobromic acid solution is required to neutralize 12.3 mL of a 0.190 M…

A: Since the reaction is  HBr + NaOH ----> NaBr + H2O Hence 1 moles of NaOH will need 1 moles of HBr…

Q: Whens 28 g of KOH dissolves in enough water to make 250 mL of solution, what is the resulting…

A: We have 28 g KOH , 250 ml of solution, we have to calculate the Molarity.

Q: What volume (in mL) of water must you add to 25.0 mL of a 0.250 M NaBr solution to produce a 0.0275…

A:

Q: A 25.3-g sample of potassium sulfate is dissolved in 350.0 mL of solution. Calculate the molarity of…

A: Given :-  Mass of potassium sulfate = 25.3 g  Volume of solution = 350.0 mL  To calculate :-…

Q: What volume of 1.25 M Hydrochloric acid is required to neutralize 37.5 ml of 0.55 M Potassium…

A:

Q: Calculate the new concentration of a NaOH solution when 75 mL of a 1.6 M NaOF is diluted to a final…

A: Molarity is the moles of solute present in one liter of solution. It is expressed by M. By help of…

Q: 20.0 grams of Na2CO3 are dissolved in 1.50 L of water.  What is the molarity of the Na?  a) 0.125 M…

A:

Q: Calculate the mass % of the solution if 0.050 moles of magnesium bromide is dissolved in 0.40 kg of…

A: given, moles of  magnesium bromide = 0.050 moles Mass of solution = 0.40 kg

Q: 7. How would you prepare 250 mL of 0.866 M hydrochloric acid starting from a 5.07 M solution? 8. How…

A:

Q: What volume (in mL) of water must you add to 25.0 mL of a 0.250 M NaBr solution to produce a 0.0185…

A:

Q: A 38.1 g sample of SrCl2 is dissolved in 112.5 mL of solution. Calculate the molarity of this…

A: Molarity (M) is the ratio of the number of moles of solute to the volume of the solution in litre.…

Q: 250 mL of a 1.9 M Mg(OH)2 solution is added to a beaker.  How many moles of Mg(OH)2 were added?  How…

A: Molarity is a way of expressing concentration. It is defined as moles of solute present per liter of…

Q: What is the molar concentration of sodium ions in an aqueous solution prepared by dissolving 3.00 g…

A: Molar concentration or molarity ( M ) is defined as the number of moles ( n ) of solute present in…

Q: 23. How much Ba(OH)2 in mg per ml solution is contained in 0.400 M Ba(OH)2 (FW 171.34 g/mol) ? (68.5…

A: Which one of the following is correct answer

Q: What volume of 0.0117 M  calcium hydroxide is required to neutralize 71.50 mL of 0.0132 M  nitric…

A:

Q: How many grams of magnesium chloride must be added to 715 mL of water to create a solution with an…

A: Answer: From the concentration of solution, we will calculate the moles of chloride ions and then by…

Q: A 0.458 g sample of anhydrous sodium carbonate Na2CO3 is dissolved in deionized water and titrated…

A: Given: Mass of anhydrous sodium carbonate = 0.458 g. Volume of HCl = 21.34 mL Molar mass of sodium…

Q: How many grams of Na,sO4 would you need to dissolve in 1.37 L of water in order to create a solution…

A: The Na2SO4 dissolved in water and form 2Na+ and SO4-2 There are  3 moles of  ions are formed…

Q: Hard water often contains dissolved Ca2+ and Mg2+ ions. One way to soften water is to add…

A: Given information:Volume of solution = 1.5 LConcentration of the Ca2+ present in the solution =…

Q: If 10.0 g of silver nitrate is available, what volume of 0.25 M silver nitrate can be prepared?

A: Given is mass of silver nitrate= 10g Molarity of silver nitrate= 0.25M And we know that- Molar mass…

Q: 45 mL of 0.75 M NaOH solution is required to completely neutralize 200 ml of sulfuric acid solution…

A: Given: Volume of NaOH = 45 mL Concentration of NaOH =0.75 M Volume of H2SO4 =200 mL To Calculate:…

Q: What volume of a 0.162 M potassium hydroxide solution is required to neutralize 10.4 mL of a 0.158 M…

A:

Q: What volume of 0.0438 M calcium hydroxide is required to neutralize 55.90 mL of 0.0301 M nitric…

A: Given the molarity of calcium hydroxide, Ca(OH)2 taken for titration = 0.0438 M Given the volume of…

Q: Calculate the molarity of each of these solutions.a. A 5.623-g sample of NaHCO3 is dissolved in…

A:

Q: Determine the concentration of 7.13 g zinc nitrate (MW = 189.4 g/mol) dissolved in 200.0 mL…

A: Ans. Molecular weight of  zinc nitrate Zn(NO3)2 = 189.4g/mol       mole in 7.13 gm of Zn(NO3)2 =…

Q: The solubility of the hydroxide of a hypothetical metal, Me, in water is 103.18 g MeOH per 50.37 mL…

A: Given data Solubility of MeOH  SMeOH=103.18 g MeOH50.37 mL water Mass of MeOH = 44.67 g

Q: A 12.5% (w/w) NiCl2 (129.61 g/mol) solution has a density of 1.149 g/mL. Calculate the molar…

A: The w/w percent concentration of the solution is = 12.5 % The density of the solution is = 1.149…

Q: What volume of 0.0432 M calcium hydroxide is required to neutralize 34.20 mL of 0.0355 M nitric…

A: In acid-base neutralization reaction number of the equivalent of acid and base reacted with each…

Q: What volume of a 0.371 M hydrobromic acid solution is required to neutralize 20.5 mL of a 0.197 M…

A:

Q: A student was tasked to neutralize 29.9 mL solution of 0.706 M H2SO4 (98.079 g/mol) using 0.428 M…

A:

Q: What volume (mL) of a 10.5 M solution of sodium hydorxide (NaOH) must be diluted to prepare a 200.…

A: The solution is given below.