What mass of KNO 3 is required to make 250. mL of a 0.318 M solution?  Report your answer to 3 significant figures.

Q: A 18.0 wt% solution of CaCl₂ (110.98 g/mol) has a density of 1.165 g/mL. What is the mass, in…

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Q: What mass of precipitate (in g) is formed when 20.5 mL of 0.700 M Zn(NO:)2 reacts with 17.5 mL of…

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Q: 3. Potassium sorbate, KC6H7O2 (molar mass=150. g/mol), is commonly added to diet soft drinks as a…

A: The whole ionic equation is : K+ + C6H7O2- + H+ + Cl- → HC6H7O2 + Cl-+ K+ let eliminates the common…

Q: Complete and balance the molecular equations for the precipitation reactions, if any, between the…

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Q: A 5.00-g sample of vinegar is titrated with 0.108 M NaOH. If the vinegar requires 39.1 mL of the…

A: From given data M of NaOH = 0.108 M  V of NaOH = 39.1 mL = 0.0391 L Mass of sample of vinegar = 5 g…

Q: Titration reveals that 11.6 mL of 3.0 M sulfuric acid are required to neutralize the sodium…

A: Volume of sulphuric acid = 11.6 ml  ...Or  because 1L = 1000 ml    .....so, = 11.6 ml × (1L /1000 ml…

Q: If 27.4 mL27.4 mL of the barium hydroxide solution was needed to neutralize a 3.82 mL3.82 mL aliquot…

A: The balanced Chemical equation given in the question - Ba(OH)2 + 2HClO4 ----> Ba(ClO4)2 + 2H2O…

Q: What is the molarity of a solution prepared by dissolving 0.178 moles of KI in enough water to make…

A: Given, n= 0.178 mol. Volume = 750 mL                = 0.75 mL.

Q: The final volume of the solution is 284 mL. What is the concentration of CUSO4 in the final…

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Q: Consider a 0.586 M aqueous solution of barium hydroxide, Вa(ОН)2Ba(ОН)2 (аq). How many grams of…

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Q: Imagine you transferred 5.00 mL of 1.75 M HCl solution into an empty 200.00 mL volumetric flask then…

A: Given is Initial Volume of HCl solution = V1 = 5 mL Molarity of HCl solution = M1 = 1.75 M Final…

Q: What mass of Ca(OH)2 is required to react completely with a 25.00 mL sample of  0.1234 M HCl(aq)?

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Q: You were assigned by your instructor to determine the concentration of NaCl in water. You did three…

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Q: A barium hydroxide solution is prepared by dissolving 2.91 g of Ba(OH), in water to make 42.3 mL of…

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Q: The antacid Amphogel contains aluminum hydroxide, Al(OH)3. 27.5 mL of an HCl solution are completely…

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Q: a)How many moles of acetic acid are in 100 mL of vinegar? What is the molarity of acetic acid in…

A: Given:Mass of acetic acid= 5g Volume of solution =100 mL

Q: A standard solution of 0.297 M NaOH was used to determine the concentration of a sulfuric acid…

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Q: A student weighs out a 3.22 g sample of K2SO4 , transfers it to a 100. mL volumetric flask, adds…

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Q: If 211 mL of water is added to 5.00 mL of 3.24 M NaCI solution, what is the concentration of the new…

A: N1= 3.24M V1= 5.00 mL N2= ?? V2=211mL+5mL=216mL

Q: 3. How would the concentration of the vinegar solution be altered if the volumetric flask used to…

A: The question is based on the concept of titration. we are titrating a weak acid with a strong base.

Q: If 30.0 g of NaOH is added to 0.800 L of 1.00 M Zn(NO₃)₂, what mass in grams of Zn(OH)₂ will be…

A: The mass of NaOH (sodium hydroxide) = 30.0 g The volume of Zn(NO3)2 (zinc nitrate) = 0.800 L The…

Q: Sodium hydroxide is used extensively in acid-base titrations because it is a strong, inexpensive…

A: The balanced equation for HCl reaction with NaOH is  HCl  + NaOH  -------- >  NaCl   +  H2O  from…

Q: What mass of precipitate (in g) is formed when 20.5 mL of 0.700 M Zn(NO:)2 reacts with 18.5 mL of…

A: We have to find out the limiting reagent initially. After finding out the limiting reagent we can…

Q: The amount of nitrogen in an organic substance can be determined by an analytical method called the…

A: The amount of nitrogen in an organic substance can be determined by an analytical method called the…

Q: if 30.0 g of NaOH is added to  0.800L of 1.00M Zn(NO3)2, what is the mass in grams of Zn(OH)2 will…

A: The balanced equation for the given precipitation reaction is as follows.…

Q: 0.400 g of solid NaCl is added to 50 mL of a 0.100 M MgCl2 solution. Assuming the final volume does…

A: Given data, Mass of NaCl=0.400gMolarity of MgCl2=0.100MVolume of MgCl2=50mL=0.050L

Q: a) What is the mass of solute, in grams, in 600. mL of a 0.0268 M solution of KClO3? b)What is the…

A: given  concentration of  KClO3 = 0.0268M volume of solution = 600 ml = 0.6 L

Q: A solution is prepared by adding 25.0 mL of 1.30 M AlCl3 solution to a flask, and then adding enough…

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Q: An antacid tablet has a mass of 1.45 g and neutralizes 61.83 mL of a 0.291 M HCl solution. What is…

A: Given that -  Mass of antacid tablet = 1.45 g  Volume of Hydrochloric acid, HCl used = 61.83 mL…

Q: Oxalic acid crystals have the molecular formula (CO2H)2 ∙2H2O. Calculate the molarity of a solution…

A: Molarity is defined as the number of moles of solute dissolved per liter of the solution.  That is,…

Q: Calcium metal will react with water as follows: __Ca(s) + __H2O  __Ca(OH)2(aq) + __H2(g) What is…

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Q: A barium hydroxide solution is prepared by dissolving 3.22 g of Ba(OH), in water to make 58.1I mL of…

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Q: Sodium hydroxide is used extensively in acid-base titrations because it is a strong, inexpensive…

A: Concentration in terms of molarity is defined as the moles of solute present per litre of the…

Q: Write the complete reaction between the following compounds. Indicate if the reactionis a…

A: In a precipitation reaction, we get a product that is insoluble in water.

Q: In an oxidation reaction, Iron (II) iodide converted into Iron (III) oxide and iodine gas, What…

A: The given chemical reaction is: 4FeI2+3O2→2Fe2O3+4I2 According to the balanced chemical reaction, 4…

Q: What is the appropriate size of volumetric flask to use if you want to dilute a 75.00 mL solution of…

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Q: A student is given the task of determining the concentration of a solution of hydrochloric acid.…

A: In the titration of Ba(OH)2 Vs HCl , the chemical equation can be written as  Ba(OH)2 + 2HCl =BaCl2…

Q: A student weighs out a 5.01 g sample of FeCl2, transfers it to a 250. mL volumetric flask, adds…

A: Given :-  Mass of FeCl2 = 5.01 g  Volume of solution = 250. mL  To calculate :-  Molarity of…

Q: 1.Determine the molarity of a potassium hydroxide solution if it takes 38.2 mL of the solution to…

A: Three numerical problems based on mole concept, which is to be accomplished.

Q: What is the concentration in molarity of an aqueous solution which contains 20.01% by mass…

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Q: A student was asked to predict what would take place when solutions of lead (II) perchlorate and…

A: Given, lead (II) perchlorate = Pb(ClO4)2 (aq)  calcium iodide = CaI2

Q: Complete and balance the chemical equation associated with the neutralization of aqueous sodium…

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Q: Suppose you are titrating vinegar, which is an acetic acid solution of unknown strength, with a…

A: Apply M1V1 = M2V2

Q: What quantity in moles of precipitate will be formed when 100.0 mL of 2.00 M NaCl is reacted with…

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Q: A chemist prepares a solution of magnesium fluoride (MgF2) by measuring out 0.0553 g of magnesium…

A: Concentration in mol/L = Number of mols of solute/Volume of solution (L) Number of mols =mass/molar…

Q: Suppose you are titrating vinegar, which is an acetic acid solution of unknown strength, with a…

A: Acetic acid solution of unknown strength is titrated using sodium hydroxide solution. Recall the…

Q: A student pipets 12 mL of a lithium sulfate solution into a 163 mL volumetric flask and dilutes to…

A: With datas given Using dilution formula , the concentration of NaNO3 in the original solution is…

Q: When potassium chloride, KCl, is added to a solution of lead nitrate, Pb(NO3)2, a bright yellow…

A: Using the moles concept to calculate the moles of kcl required.  Then to calculate volume.

Q: A barium hydroxide solution is prepared by dissolving 2.64 g of Ba(OH), in water to make 58.7 mL of…

A: Given 1) mass of Ba(OH)2 = 2.64 g Volume of Ba(OH)2 = 58.7 ml 3) Volume of Ba(OH)2 = 17.4 ml Volume…

Q: If 20 grams of NaOH was dissolved in enough water to make 250 mL NaOH Solution, What is the…

A: Molarity is the no. of moles of solute dissolve in one litre of the solution. Given that,. no. of…