4.62 (a) Calculate the molarity of a solution made by dissolving 12.5 grams of Na2CrO4in enough water to form exactly 750 mL of solution. (b) How many moles of KBr are present in 150 mL of a 0.112 M solution? (c) How many milliliters of 6.1 M HCI solution are needed to obtain 0.150 mol of HCl?

Q: An aqueous solution contains 2.52 g of Pb(NO3)2 in one liter.  How many moles of each ionic species…

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Q: If 3.00 grams of KOH (56.1 g/mol) are dissolved in 80.0 mL of water, what is the molarity of the…

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Q: What is the molarity of a barium chloride solution prepared by dissolving 9.9 grams of BaCl2•2(H2O)…

A: Molarity = (Mass/molar mass)(1000/V(ml)).Mass = 9.9g.Molar mass = 244.26g/mol.Volume = 151.0ml.

Q: How many grams of NiSO4⋅7H2O would be required to prepare 5.00×102 mL of a solution that is 0.300 M…

A: The molarity of a solution is defined as the ratio of moles of solute and the volume of solution in…

Q: What is the molarity of a solution of H3PO4 if 50.00mL of it is titrated with 25.68 mL of 0.1201 M…

A: Given that: Volume of H3PO4 solution, V1 = 50.00 mL = 0.05 L, molarity = M1 Volume of NaOH solution…

Q: A solution is prepared by dissolving 44.3 grams of Aspirin( C9H8O4)  in water to produce 2.13 g/ml…

A: Mass of aspirin (C9H8O4) = 44.3 grams  Density of solution = 2.13 g/ml  Number of moles of solute =…

Q: If 0.850 L of a 5.00-M solution of copper nitrate, Cu(NO3)2, is diluted to a volume of 1.80 L by the…

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Q: 3) If 50.00 mL of 0.500 M Ca(OH), was reacted with 45.75 mL of a HC,H,O, solution, what is the…

A:

Q: A solution of manganese has a SG of 2.98 and contain 28.3% manganese chloride by mass. If 50.0ml of…

A: Given, A solution of manganese has a SG of 2.98 and contain 28.3% manganese chloride by mass. If…

Q: What is the molarity of a solution prepared by dissolving 64.9 grams of Pb(NO3)2 in enough water to…

A: The number of moles of lead nitrate are as:

Q: If 0.1297 g  of sodium oxalate, Na2C2O4, requiresof a 48.59 mL  KMnO4 solution to reach the end…

A: Moles of sodium oxalate(Na2C2O4) = mass/molar mass = 0.1297g/133.99mol = 0.00096 When sodium oxalate…

Q: If 0.6546 g  of sodium oxalate, Na2C2O4, requiresof a 23.26 mL  KMnO4 solution to reach the end…

A: Reaction between MnO4- and oxalate is given.

Q: If 0.3433 liters of a 9.8214 M FrF soluiton is diluted with 97.5005 mL of water, what is the final…

A:

Q: What mass of phosphoric acid in grams is needed to produce 4.59 mol of water?

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Q: What is the molarity of a NaOH solution if 32.47 mL is required to titrate 0.6013 g of potassium…

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Q: The mass percent of acetic acid (CH3COOH) in a bottle of vinegar is 5.45% in water. What is the…

A: Consider the volume of the solution as 1 L (1000 mL).Determine the mass of l L of solution from the…

Q: What is the concentration (in Molarity units) of [Cu2+] in a solution that was prepared by weighing…

A:

Q: 3.) If it takes 25 mL of 0.050 M HC,H3O2 to neutralize 345 mL of NaOH solution, what is the…

A:

Q: What is the molarity of a solution of NH3 when 4.56g of NH3 is dissolved in water to a total volume…

A: Given Information- mass of NH3 = 4.56 g  volume of NH3 =375.0 mL         Required data - moles of…

Q: A sample of 7.44 grams of magnesium chloride is weighed out on a balanced and prepared to a volume…

A: Interpretation: A sample of 7.44 grams of magnesium chloride is weighted out on a balanced and…

Q: If you prepare 25 mL of a solution with 100 mM Na2SO4 and another solution with 0.5 L of 30mM BaCl2,…

A: The reaction is        Molarity = 100 mM Volume = 25 ml Moles of Na2SO­4 = Molarity × Volume…

Q: What volume of 0.05 m NaOH(in ml) is required to react completely with 0.020 moles of H2SO4? What…

A: Molarity is equal to the number of moles of solute dissolved in per liter of solution. It is denoted…

Q: If 27.8 g of CH3OH (MM = 32.04 g/mol) are added to a 500.0 mL volumetric flask, and water is added…

A: Mass = 27.80 g V = 500.00 mL

Q: 1.00 L of a solution is prepared by dissolving 125.6 g of NaF in it. If I took 180 mL of that…

A: Given : Mass of NaF = 125.6 g Volume of initial solution = 1.00 L  Volume of initial solution used =…

Q: If 54.8 mL of BaCl2 solution is needed to precipitate all the sulfate in a 554 mg sample of Na2SO4…

A:

Q: If 45.5 g of BaCl 2 is dissolved in water to produce 2.74 L of solution, what is the molarity of the…

A: Given that -  Mass or weight of barium Chloride, BaCl2 = 45.5 g  Volume of barium Chloride Solution…

Q: 6. A preparation of soda ash is known to contain 98.6% NażCO3. If a 0.845-g sample requires 30.1 mL…

A: 6) Acid base neutralization reaction :-        In the acid base reaction the one gram equivalent…

Q: If 40.6 g of CH:OH (MM = 32.04 g/mol) are added to a 500.0 mL volumetric flask, and water is added…

A:

Q: A 0.9182 g sample of CaBr2 is dissolved in enough water to give 500.0 mL of solution. A 15.00 mL…

A: When we make a solution , then concentration of whole solution is same. So if we take a small volume…

Q: How many moles of potassium bromide

A: Molarity is defined as a term in which number of moles of solute present in 1 litre of the solution.

Q: If 14.64g of NaHCO3 (84.01g/mol) is dissolved in 250.00ml of solution, what is its molarity?

A: Given: Amount of NaHCO3 =14.64 g Volume of solution = 250.00 mL To Calculate: Molarity of the…

Q: What is the molarity of sodium ions, [Na+], in a solution of 15.0 grams of Na2CO3 dissolved in 125…

A: Introduction- Molarity (M): It is the number of gram moles of solute dissolved per litre of…

Q: A 3.682 g sample of KClO3is dissolved in enough water to give 375. mL of solution. What is the…

A: Given information: Mass of KClO3 = 3.682 g Volume of water = 375 mL

Q: A student weighs out a 3.79 g sample of potassium nitrate, transfers it to a 250 mL volumetric…

A: Given, mass of KNO3 = 3.79 g. Volume of the solution = 250 mL = 250 mL×1 L1000 mL = 0.25 L. We have…

Q: What is the molarity of a solution made by dissolving 2.355 g of sulfuric acid (H2SO4) in water and…

A: Molarity is one of the ways to measure the concentration of a solution. The unit of molarity is…

Q: The town of Andover obtains drinking water from three sources that together produce up to 6.81 × 107…

A:

Q: What mass of K2CO3, in grams, is needed to prepare 211 mL of a solution having a potassium ion…

A:

Q: When 2.61 g of solid Na 2CO 3 is dissolved in sufficient water to make 250. mL of solution, the…

A: Given:Mass of Na2CO3  = 2.61 gVolume of solution = 250 mL = 0.250 LMolar mass of Na2CO3 = 2 x 23 +…

Q: if 23.1g of NaOH ( MM= 40.00g/mol) are added to a 500ML volumetric flask, and water is added to fill…

A: Given :  Mass of NaOH = 23.1 g  Molar mass of NaOH = 40.00 g.mol-1  Volume of solution = 500 mL  To…

Q: If 50.0 mL of NaOHNaOH solution is required to react completely with   0.44 gg    KHPKHP, what is…

A: Given :- Volume of NaOH = 50.0 mL  Mass of KHP = 0.44 g  To calculate :-  Molarity of NaOH solution

Q: If you had a stock solution of 3.00 molar KCl, what volume of the stock in milliliters would be…

A: The product of concentration (molarity) of the solution and the volume of the solution of the…

Q: Whaf is thr molarity of NO3- in a solution made by dissolving 12.59 grams of Fe(NO3)3 to make 50.00…

A: In the given solution 12.59 grams of Fe(NO3)3 is dissolved in 50.00 mL of solution.

Q: If 0.5693 g  of sodium oxalate, Na2C2O4, requiresof a 41.72 mL  KMnO4 solution to reach the end…

A: The reaction between MnO4- and oxalate is given.

Q: In a titration experiment, a student finds that 23.48 mL of a NaOH solution are needed to neutralize…

A: Stoichiometry, in balanced chemical reaction is defined by the ratio at which reactants are reacting…

Q: 3. A 0.709 g sample of H2C2O4:2H2O is dissolved in water and titrated to a phenolphthalein endpoint…

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Q: Vinegar contains (among other things) acetic acid. What is the molarity of acetic acid (HC2H3O2) in…

A: Solution stoichiometry involves the calculation of concentration of solutions in the given…

Q: If 0.4350 g  of sodium oxalate, Na2C2O4, requiresof a 41.71 mL  KMnO4 solution to reach the end…

A: Reaction between MnO4- and oxalate is given - Number of sodium oxalate reacted is calculated :-

Q: What volume in liters of a 8.9 M Fe(NO3)3 solution can be diluted to prepare 186.5 mL of a solution…

A: Given: Initial molarity=M1=8.9 MFinal molarity=M2=1.5 MFinal volume=V2=186.5 mL To find: Initial…

Q: An IV solution used to replace electrolytes in extracellular fluids contains 8.00 mEq/L of citrate…

A: Number of equivalent (Neq)= valence factor (nf) x  Number of mole (n)