A 0.709 g sample of H2C2O4·2H2O is dissolved in water and titrated to a phenolphthalein endpoint with 27.98 mL of a sodium hydroxide solution. What is the molarity of the NaOH?

Q: What volume (L) of 0.550 M hydrochloric acid solution can be prepared from the HCl produced by the…

A: Given: concentration of HCl = 0.550 M mass of NaCl = 15.0 g reaction yield = 91.2 % molar mass of…

Q: A.) What volume of 8.4N Al(OH)3 will be used to prepare 350mL of 2.1M solution? B.) How many mL of…

A: Given,  Initial Concentration = 8.4 N  Final volume, V2 = 350 ml  Final Concentration, M2 = 2.1 M

Q: What is the molarity of the solution?

A: Molarity = mole of solute / volume of solution

Q: What mass of KOH in grams is required to precipitate all the Fe2+ ions from 15.0 mL of a 0.150 M…

A: The Fe(NO3)2 solution contains Fe2+ and 2NO3- ions. The moles of Fe(NO3)2 are calculated as shown…

Q: What mass of Na3CrO4 is required to precipitate all of the silver ions from 20.0 mL of a 0.700 M…

A: 20.0 mL of a 0.700 M solution of AgNO3 and Na3CrO4.

Q: A sample of seawater from a tidal estuary was found to contain a concentration of 889 mg of chloride…

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Q: A sample of seawater from a tidal estuary was found to contain a concentration of 671 mg of chloride…

A: Given : Mass of chloride ion = 671 mg = 0.671 g…

Q: What volume of 0.100 M NaOH is required to precipitate all of the nickel (II) ions from 150.0 mL of…

A: Given,  Molarity of NaOH = 0.100 M  Volume of Ni(NO3)2 = 150.0 mL  Molarity of Ni(NO3)2 = 0.347 M…

Q: What volume (in mL ) of 0.160mol / L calcium hydroxide , Ca(OH) 2 (aq) , is needed to completely…

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Q: One wants to prepare 1 L of an ammonia solution with a concentration of ammonia of 0.02 mol.L-1…

A: Solution is formed by dissolving solute in a solvent. Solvent is present in large amount while…

Q: When a solution of ammonium sulfate is added to a solution of strontium nitrate, Sr(NO3)2, a white…

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Q: Question attached

A: Sample of sea water contain concentration of 687mg of chloride ion per kg of sea water Density of…

Q: Calculate the molar concentration of the solution formed when 69.68 g of MgSO4 * 6 H2O is dissolved…

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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: What is the total molar concentration of ions in 34.49mL of 0.2192M Ca3(PO4)?

A: NOTE : The formula of the salt given is incorrect. The correct formula of calcium phosphate salt is…

Q: What is the molarity of a barium chloride solution prepared by dissolving 2.50 g of BaCl2 x 2H2O in…

A: It is required to calculate the molarity of BaCl2.2H2O in a 400 ml (0.4 L) solution. This can be…

Q: About 6x 10°g of goldis thought to be dissolved in the oceans of the world. If the total volume of…

A: Given, Mass of gold = 6*109g Volume of ocean = 1.5 *1021L

Q: A student wishes to determine the mass percentage of barium in a 2.016g sample. The student…

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Q: Calculate the concentration of an aqueous solution with a volume of 350 mL in which 10.5 g of…

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Q: What mass of solute, in g, is needed to create 7.6OL of 0.125M AgC2H3O2?

A: Molar mass of AgC2H3O2 = 166.91g/mol Number of moles = given mass/Molar mass

Q: A sample of seawater from a tidal estuary was found to contain a concentration of 567 mg of chloride…

A: Solution stoichiometry is mainly based on the calculation of moles and volumes. These two values are…

Q: What mass of NaOH is needed to precipitate the Cd2+ ions from 37.0 mL of 0.500 M Cd(NO3)2 solution?

A: Given:Volume of Cd(NO3)2 solution = 37.0 mL = 0.037 L.Molarity of Cd(NO3)2 solution = 0.500 M.

Q: A piece of chalk (mainly calcium carbonate) is placed in 250. mL of 0.337 M HCl. All the CaCO3…

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Q: Consider Palmitic acid C16H32O2, a common fatty acid used in the manufacture of soap. A solution of…

A: The formula used to find out the volume and strength or concentration in the case of volumetric…

Q: What is the mass of the solute (in grams) in 325 mL of 1.8×10–6 M FeSO4, the minimum concentration…

A: molarity  = (no. Of moles of solute ÷ volume of solution in liter) Given volume = 325 ml = 0.325…

Q: Consider Palmitic acid C16H32O2, a common fatty acid used in the manufacture of soap. A solution of…

A: The mass of Palmitic acid =112 g The molar mass of palmitic acid = 256 g/mol Moles =MassMolar…

Q: What is the maximum volume of 0.25 M sodium hypochlorite solution (NAOCI; laundry bleach; MW= 74.44…

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Q: A piece of chalk (mainly calcium carbonate) is placed in 250. mL of 0.281 M HCl. All the CaCO3…

A: Explanation Step-1 Molarity: Molarity is well-defined as the moles of a solute per litres of a…

Q: Consider a solution prepared by adding 2.70 g acetic acid, CH3CO2H, to 122.8 g of H2O. (a) what is…

A: Given: Mass of water = 122.8 g. And mass of acetic acid = 2.70 g.

Q: What mass of Fe(NO3)3 do you need to prepare 250.00 mL of .750 M solution?

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Q: A sample of seawater from a tidal estuary was found to contain a concentration of 597 mg of chloride…

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

Q: A sample of seawater from a tidal estuary was found to contain a concentration of 741 mg of chloride…

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Q: How many moles of salt is produced when solutions of barium chloride and sodium chromate are added…

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Q: Calculate the mass in grams of solute needed to prepare 100 mL of a 0.597 mol/L solution of…

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Q: A sample of seawater from a tidal estuary was found to contain a concentration of 711 mg of chloride…

A: Given values-> Weight of chloride ion = 711mg = 711 × 10^-3gram Density = 1.035gm/mole

Q: A sample of seawater from a tidal estuary was found to contain a concentration of 527 mg of chloride…

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Q: A sample of seawater from a tidal estuary was found to contain a concentration of 825 mg of chloride…

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Q: What volume (L) of 0.550 M hydrochloric acid solution can be prepared from the HCl produced by the…

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

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Q: Calculate the mass, in grams, of nickel(II) nitrate that must be added to a 500-mL volumetric flask…

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Q: What weight (in grams) of oxalic acid (MW= 90 g/mol) will be required to prepare 1 liter of 0.25 N?

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Q: The maximum permissible amount of cadmium (M=112 g/n) in drinking water is 0.01 mg/L. What is the…

A: Given that : The maximum permissible amount of cadmium in drinking water is 0.01 mg/L. We have to…

Q: How many grams of Fe(NO3)3 must be used to prepare 1.50 L of a 0.0625 M Fe(NO3)3 solution?

A: Given, Volume of the solution = 1.50 L 0.0625 M Fe(NO3)3 solution i.e. molarity of the solution =…

Q: What is the concentration of NO3- ions in a solution prepared by dissolving 30.0 g of Ca(NO3)2 in…

A: Given,  mass of Ca(NO3)2 = 30.0 g Volume of solution = 300 ml = 0.3 L Molar mass of Ca(NO3)2 =…

Q: If 6.00 mL of 0.0210 M CuSO4 is diluted to 10.0 mL with pure water, what is the molar concentration…

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Q: Determine the volume of 0.116 M Li3PO4 and 0.0871 M Mg(C2H3O2)2 solutions needed to form 135 g of…

A: Number of mols = volume in L × concentration in M Number of mols = weight / molecular weight

Q: What mass of Na2CrO4 is required to precipitate all of the silver ions from 20.0 mL of a 0.700 M…

A: Molarity - ratio of number of moles of solute to the volume of solution in litres. Formula is,…

Q: One cup of fresh orange juice contains 124 mg of ascorbicacid (vitamin C, C6H8O6). Given that one…

A: The formula for finding the molarity is as given below: Molarity = (weight/molecular…

Q: Calculate the molarity of the following solution: a) 10.00 mL of 0.500 M NaOH (aq), diluted to 250.0…

A: Molarity is the concentration of a solution expressed as the number of moles of solute per litre of…

Q: If 5.00 mL of 0.0445 M CuSO4 is diluted to 10.0 mL with pure water, what is the molar concentration…

A: Amount of copper sulfate in the 5.00 mL solution can be calculated as,