Given the reaction:   3K2CO3 +2H3PO4(aq) → 2K3PO4(aq) +3CO2(g) +3H2O(l)   If it required 97.65 ml of H3PO4 solution, with an unknown concentration,  to completely react with 0.7724 g of  pure K2CO3 Determine the concentration in Molarity (M) of the H3PO4 solution used in the reaction (This is a titration problem)

Q: acetic acid (HC2H3O2) is a liquid and is known as glacial acetic acid. Calculate the molarity of a…

A: Given-> Volume of glacial acetic acid = 25.00 ml Density of glacial acetic acid = 1.05 g/ml Final…

Q: A potassium permanganate solution is prepared by dissolving 4.68 g KMnO4 in water and diluting to…

A: Mass of KMnO4=4.68g  Molar Mass of KMnO4=158.034g/mol  No. of moles of KMnO,n=mass of KMnO4Molar…

Q: 250.0 mg of copper(II) sulfate pentahydrate (CuSO4•5H2O, 249.69 g/mol) was dissolved in water to…

A: Since mass of CuSO4•5H2O used = 250 mg = 0.25 g              (since 1 g = 1000 mg) Hence moles of…

Q: what quantity in moles of precipitate will be formed when 268.5 mL of 0.200 M NaBr is reacted with…

A: No. Of moles= molarity×volume Here precipitate is PbBr2 because this is in solid phase ( solid phase…

Q: A stock solution of potassium permanganate (KMNO4) was prepared by dissolving 10.0 g KMNO4 with DI…

A: To solve this problem we will first calculate the number of moles of KMnO4   Then Molarity will be…

Q: Ringer's solution, used in the treatment of burns and wounds, is prepared by dissolving 8.6 gg of…

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Q: If 28.8 mL of lead(II) nitrate solution reacts completely with excess sodium iodide solution to…

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Q: One step in the isolation of pure rhodium metal (Rh) is the precipitation of rhodium(II) hydroxide…

A: The balanced reaction taking place is given as, a) Given: Mass of Rh2(SO4)3 = 0.650 g. And mass of…

Q: Lead(II) nitrate and ammonium iodide react to form lead(II) iodide and ammonium nitrate according to…

A: Given datas ; Pb(NO3)2 (aq) + 2 NH4I (aq) ---> PbI2 (s) + 2 NH4NO3 (aq)  Moalrity (Conc.) of NH4I…

Q: The aluminum in a 1.2 g sample of impure ammonium aluminum sulfate was precipitated with aqueous…

A: Calculate the number of moles of Al2O3. Number of moles = Given mass Molar mass = 0.1798 g101.96…

Q: 2) Hydrogen peroxide (H2O2) reacts with the permanganate ion (MnO4) in acidic solution according to…

A: a.

Q: If a vinegar solution contains 7.5% acetic acid, HC2H3O2, what is the molarity of the acetic acid…

A: Given, Density of the solution= 1.01 g/mL % weight of acetic acid in solution= 7.5%

Q: The molarity of a solution prepared by dissolving 0.425 moles KI in 250. mL of solution:…

A:

Q: Calculate the maximum mass of Ag2CO3 (MM = 275.7 g/mol) produced from the reaction of 65.0 mL of…

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Q: When 30.5 mL of sulfuric acid solution was completely neutralized in a titration with 0.593 M NaOH…

A:

Q: A chemist adds 320.0mL of a 2.1 M calcium bromide (CaBr2) solution to a reaction flask. Calculate…

A: From the given volume and molarity of the solution, moles of calcium bromide can be calculated as

Q: A certain electrolyte solution contains, as one of the ingredients, the equivalent of 4.6 mEq of…

A: The given electrolytic solution contain 4.6 mEq of Ca per litre. Given molar mass of CaCl2.xH2Ois…

Q: What mass of precipitate (in g) is formed when 20.5 mL of 0.300 M Ni(NO3)2 reacts with 40.0 mL of…

A:

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 mass precipitate (in g) is formed when 20.5 mL of0.800 M Co(NO3)2 reacts with 29.0 mL of 0.800…

A:

Q: A stock solution of potassium permanganate (KMnO4) was prepared by dissolving 20.8 g  KMnO4 with DI…

A:

Q: A mixture of barium chloride and sulfuric acid yield the precipitate barium sulfate and hydrochloric…

A: Number of atoms, ions and molecules present on a given amount can be determined by “Mole Concept”.…

Q: What volume (in mLmL) of a 0.150 MHNO3MHNO3 solution is required to completely react with 41.6 mLmL…

A: Number of mmols = Molarity x volume (mL) Given that: Number of moles of HNO3 required to react…

Q: The equation for the reaction of copper and dilute nitric acid is: 3Cu + 8HNO3 ⟶⟶ 3Cu(NO3)2 + 2NO +…

A: Answer :-  Volume of Nitric acid (HNO3) solution which contains 27.0% HNO3 by mass and has a density…

Q: From the following formula, calculate the amount, in grams, of Hydrophilic ointment required to…

A: Mass of ointment = 10 g + 2g +88 g = 100g For 100 g ointment, mass of Hydrophilic ointment = 88 g

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: An aqueous solution was prepared by dissolving 1.567 g of AgNO3 in enough water to make 250.0 mL of…

A: Molarity is one of the concentration term given by formula  Molarity = moles / volume of solution…

Q: A solution of MgSO4 (120.37 g/mol) is prepared by measuring 4.56 g of MgSO4 and diluting to a final…

A: Given, mass of MgSO4 = 4.56 g  Molarity = ?

Q: diluted

A: mmoles of HCl = ( Molarity ) • ( volume )  mmoles of HCl = 3.00molL-1 • 25.00mL  mmoles of HCl =…

Q: What mass of precipitate (in g) is formed when 250.0 mL of 0.250 M CuCl₂ is mixed with excess KOH in…

A:

Q: What mass of oxalic acid dihydate, H2C2O4•2H2O, is needed to make a 0.498 M solution of oxalic acid…

A:

Q: 1. A stock potassium dichromate solution (K,Cr,0,; molar mass is 294.2 g/mol) is prepared for…

A: the solution of pottasium dichromate is given

Q: Potassium permanganate reacts with oxalic acid (H2C2O4) in aqueous sulfuric acid according to the…

A: Here it is given that sulfuric acid is in excess therefore oxalic acid must be the limiting agent .…

Q: A stock potassium dichromate solution (K,Cr,O,; molar mass is 294.2 g/mol) is prepared for dilution…

A: Given: Mass of K2Cr2O7=25.0 g  Molar mass =294.2 g/mol Moles =25.0 g /(294.2 g/mol)= (25.0/294.2)…

Q: If 100.0 mL of potassium dichromate solution (10.0 g of K2Cr207 per liter) was mixed with 75.0 mL of…

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Q: The ubbalance equation for the reaction between bromine, Br2, and aqueous iodate ion IO3^- in acidic…

A:

Q: What mass of precipitate (in g) is formed when 20.5 mL of 0.800 M Co(NO₃)₂ reacts with 21.0 mL of…

A: The given chemical reaction is as follows: CoNO32(aq) + 2NaOH(aq) → Co(OH)2(s) + 2NaNO3(aq) The…

Q: A 0.879 g sample of a CaCl2·2H2O/K2C2O4·H2O solid salt mixture is dissolved in ~100mL of deionized…

A: Given:Mass of CaCl2.2H2O +mass of K2C2O4·H2O = 0.879 g.Mass of CaC2O4 = 0.284 g.Volume of water =…

Q: A 10.0 g of calcium chloride dihydrate, CaCl2•2H2O, in enough water to make exactly 500.0 mL of…

A: Given  Mass of solute( CaCl2.2H2O) = 10.0 g Volume of solution = 500.0 mL    = (500/1000) L We know…

Q: What is the concentration in molarity of an aqueous solution which contains 26.61% by mass ethylene…

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Q: A volume of 23.24 mL of potassium permanganate (represented by permanganate ion in the balanced…

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Q: a) Luminol has a molecular weight of 177 g/mol. The forensic technician at a crime scene has just…

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Q: The concentration of acetylsalicylic acid, C9H8O4, in aspirin tablets is determined by hydrolyzing…

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Q: 1.3334 grams of Aluminum chloride was dissolved in distilled water up to 100 mL. What is the molar…

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Q: A reaction is performed where 10.0 g K2S(s) are added to 250.0 mL of a 0.855 M HCl (aq) solution.…

A: The balance chemical reaction ,                                            K2S + 2HCl = H2S + 2KCl…

Q: Ammonia reacts with hypobromite, OBr, by the reaction 2NH3 + 30BR N2 + 3Br + 3H20. What is the…

A: Given is  2NH3 + 3OBr–  → N2 + 3Br– + 3H2O  Volume of OBr– = 1.0 mL Mass of NH3 = 1.69 mg  MM of NH3…

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Q: A sample of 18.5 grams of sodium phosphate is weighed out on a balance and prepared to a volume of…

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