A sample of calcium oxalate and magnesium oxalate weighing 0.6240 g is heated and converted to calcium carbonate and magnesium carbonate. This sample weighs 0.4830 g. Determine the % composition of the original mixture.

Q: The number of milliliters of 12.0 M HBr required to prepare 250 mL of 5.00 M HBr is ________.

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Q: A sample of hydrated nickel(II) chloride was heated to remove the waters of crystallization. The…

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Q: Calculate the Mass of the Sodium Acetate that was created during the reaction of baking soda and…

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Q: What mass of calcium hydroxide could be reacted by 1.000 g hydrochloric acid?

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A: The reaction taking place is  HCl (aq) + Fe2O3 (s) ------> H2O (l) + FeCl3 (aq) Balancing : Since…

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A: Given: Compounds of two alkali metals XClO3 and ZClO3. And the compounds are heated to remove the…

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A: Volume of Na2CO3 = 492.1 ml Molarity of Na2CO3= 0.674 mole/L Volume of Ca(NO3)2 = 551.4 ml Molarity…

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Q: A sample of an unknown sulfate compound has a mass of 0.100 g. Addition of excess barium chloride…

A: A question based on percentage mass, which is to be accomplished.

Q: For this reaction, 27.5 g diphosphorus pentoxide reacts with 8.60 g water. diphosphorus pentoxide…

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Q: 5. The mass of Al,O3 in g produced from the reaction mixture of 3.82 g Al and 6.40 g Ozis

A: Limiting reactant :- A reactant which is present in lesser number of moles than required as per…

Q: Calculate the number of grams in these quantities. 5.17 x 1021 molecules glucose, C6H12O6 64.6 mL…

A: 1) Since moles = number of molecule / Avogadro's number where Avogadro's number = 6.022 X 1023

Q: sample of an unkown sulfate compound has a mass of 0.100 g. addition of excess barium chloride…

A: The question is based on the concept of quantitative estimation of percent sulphate present in the…

Q: Calcium in river water samples can be precipitated out as Ca10(PO4)6(OH)2 (1,004.6 g/mol). The…

A: IMPORTANT POINTS Approximate value of Calcium present in nearby laboratory water is given in the…

Q: Al2O3 in g produced

A: Balance reaction:             4 Al + 3 O2 ------->  2Al2O3           molar mass of Al = 27g/mol…

Q: A mineral was collected and weighed to be 15.001 g. The CrO4 content was determined by using  35.77…

A: Introduction :  The w/w are concentration terms used for expression the concentration of components…

Q: When solutions of silver nitrate and sodium chloride are mixed, a precipitation reaction occurs.…

A: The reactants given are  1) Silver nitrate i.e AgNO3  2) Sodium chloride i.e NaCl Hence the…

Q: 100.0 mL of 0.2o mol/L sodium carbonate solution fully reacts with excess calcium nitrate solution.…

A: Sodium carbonate reacts with calcium nitrate to form a precipitate of calcium carbonate and the…

Q: A sample weighing 3.011 g is a mixture of Fe2O3 (molar mass = 159.69 g/mol) and Al2O3 (molar mass =…

A: ·Mass of the sample mixture of Fe2O3 and Al2O3 = 3.011 g·Mass of sample residue = 2.598 g·Molar mass…

Q: A 249.3-g sample of ground water is analyzed for calcium. The Ca2+ in the sample is first…

A: Given the mass of groundwater sample taken for analysis = 249.3 g  mass of Ca2P2O7 precipitate…

Q: mass of salicylic acid: 2.25g,  volume of acetic anhydride: 4.03mL, the mass of filter paper and…

A: The number of moles of salicylic acid and acetic anhydride is calculated as shown below. nsalicyclic…

Q: Question is attached

A: Given, Volume of sodium chromate ( Na2CrO4 ) = 15 mL = 0.015 LVolume of lead nitrate ( Pb(NO3)2 ) =…

Q: A 0.8830 g sample of a mixture of NaCl and KCl is dissolved in water, and the solution is then…

A: Given : Mass of mixture = 0.8830 g And mass of AgCl produced = 1.913 g Molar mass of AgCl = Atomic…

Q: You mix 500.0 mL of 0.250 M iron(III) chloride solution with 375.0 mL of 0.350 M barium chloride…

A: Given : Molarity of iron (III) chloride (FeCl3) =0.250 M  Volume of iron (III) chloride…

Q: Assumed water volume = 10.0 ml a.) calculated mass of water…

A: The mass of a compound is related to its density and volume as follows: Density=MassVolume…

Q: How many grams of chlorine can be produced from reacting 7.49 g of titanium (IV) chloride with…

A: The reactants given are 1) titanium (IV) chloride i.e TiCl4 (Molar mass = 189.7 g/mol) 2) oxygen i.e…

Q: Determine the mass of a solution of a 7.897 wt % LiI if you needed to provide 0.3894 moles of LiI…

A: wt% = 100 x Mass of solute/Mass of solution Mass = Number of moles x molar mass

Q: Consider this question: What mass of a concentrated solution of nitric acid (68.0% HNO3 by mass) is…

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Q: In one part of our experiment, we take 30.0 ml of 1 M HCI(aq) and react it with a magnesium metal…

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Q: A 4.07 g sample of a laboratory solution contains 1.85 g of acid. What is the concentration of the…

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Q: A 21.25 g of a mixture of the solid salts, sodium chloride and lead II nitrate, is added to…

A: The balanced Chemical equation for precipitation of lead (II) Chloride is - 2NaCl(aq) + Pb(NO3)2(aq)…

Q: h) What is the mass, in grams, of barium sulfide precipitate that is formed from the reaction of…

A: Given, Ba(NO3)2 + FeS → BaS + Fe(NO3)2 Note: 1000 mg = 1 g Mass of iron (II) sulfide {FeS} = 18.2 mg…

Q: Barium can be analyzed by precipitating it as BaSO4 and determining the mass of the precipitate.…

A: Calculate the number of moles of BaSO4 formed:

Q: A 4.534 g sample of a solid mixture was analyzed for baum ion. First the rock was crushed in a…

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Q: what maximum mass of sodium oxide can be made when 13.8g of sodium reacts with an excess of oxygen…

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Q: Precipitated sulfur 500 g calcium polysulphide and 1.5 kg hydrochloric acid 343.4g precipitated…

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Q: For the following reaction, 0.557 moles of potassium hydroxide are mixed with 0.224 moles of…

A: (a) The reaction can be given as: 3KOH(aq)+H3PO4(aq)→K3PO4(aq)+3H2O(l) For the reaction, it can be…

Q: Determine the limiting reactant and theoretical yield of the solid when 10.00 mL of a 1.00 M sodium…

A: The reactants given are sodium sulfate i.e Na2SO4 and barium chloride i.e BaCl2. Hence the double…

Q: A student weighs out 0.213 g MgCl2·H2O (Mw = 131.235 g mol-1) of and 0.167 g of NaOH (Mw = 39.997 g…

A: Since, given molar mass of MgCl2·H2O is 131.235 g mol-1 . But it does not match with formula. Hence,…

Q: Calculate the theoretical yield in moles NH3 from the complete reaction of 15.6 grams H2 in the…

A: The chemical reaction occurs according to the stoichiometry of the reaction. The reagent which is…

Q: Calculate the weight of silver chloride that will be produced by precipitation of the chloride from…

A: Molar mass of KCl = 74.55 g/mol Molar mass of AgCl = 143.32 g/mol

Q: percent calcium chloride by mass in the original mixture.

A: Given, Mass of a mixture of calcium nitrate and calcium chloride = 1.25 g Volume = 200 mL = 0.200 L…

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A: The mass of filter paper and watch glass = 31.26 g Mass of filter paper and watch glass plus aspirin…

Q: You mix 500.0 mL of 0.250 M iron(III) chloride solution with 325.0 mL of 0.350 M barium chloride…

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

Q: You mix 500.0 mL of 0.250 M iron(III) chloride solution with 125.0 mL of 0.350 M barium chloride…

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