A solution of HNO3 is standardized by reaction with pure sodium carbonate: 2H+ + Na2CO3 → 2Na+ + H2O + CO2 A volume of 36.68(±0.05) mL of HNO3 solution was required for complete reaction with Na2CO3, (MM= 105.988(±0.001). The Na2CO3 was placed in a container that had an initial mass of 15.6791(±0.0006) g and the final mass was found to be 16.4893(±0.0006) g. Propagate the error of the concentration of HNO3.

Q: To lower the concentration of a solution, we use the process of dilution, or adding more solvent to…

A: 1.MinitialVinitial = MfinalVfinal

Q: 4. Urea, CO(NH₂)2, is manufactured on a large scale for use in producing urea-formaldehyde plastics…

A:

Q: The Burke Museum at the UW is analyzing a dinosaur bone sample for the amount of calcium it…

A: The solid

Q: is the mass of the oxalic acid (diprotic acid) in the sample and what is its mass percent? (0.753 g,…

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Q: According to the reaction below, how many grams of precipitate will be produced from12.39 mL of…

A: The balanced chemical equation is as given below:-  3CaCl2(aq)   +   2Na3PO4(aq)   -------->…

Q: If 0.1500 g of impure soda ash (Na2CO3 with impurities) is titrated (or reacted) with 21.99 mL of…

A:

Q: A 10.00 mL of vinegar solution is titrated with 39.0 mL of 0.20 M NaOH.The calculated mass percent…

A: Givenvolume of vinegar solution=10 mlmolarity of NaOH=0-2Mvolume of NaOH=39 mlmass% =5.2%molae…

Q: 1) Use the reaction: 2AgNO3(aq) + H2SO4(aq) → Ag2SO4(s) + 2H2O(l).   What volume (in L) of 2.176 M…

A: 1) Recall the given reaction,                                The concentration of the  solution =…

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: at mass a

A:

Q: A researcher needs to determine the molarity of a sulfuric acid, H₂SO4(aq) solution. He decides to…

A:

Q: Calculate the volume (in mL) of 0.100 M CaCl₂ needed to produce 1.00 g of . There is an excess of…

A: Molarity of CaCl2 = 0.100 MMass of CaCO3 = 1.00 gMolar mass of CaCO3 = 100.09 g/mol

Q: A student starts with 50.0 mL of 0.250 M H3PO4 solution and dilutes it to 1000. mL in a suitable…

A:

Q: (1) Identify each of the following half-reactions as either an oxidation half-reaction or a…

A: The ionic compound  decomposes to its corresponding ions and give the different product .

Q: The reaction of phosphoric acid with barium hydroxide occurs. What mass of barium phosphate would…

A:

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 a student weighs out 0.600 g of potassium hydrogen phthalate (MW 204.22 g/mol) and titrates it…

A:

Q: Calculate the molarity of 1.3174 g of calcium hydroxide, Ca(OH)2 dissolved in 50.00 mL of solution…

A: The molarity is the concentration expression that is defined as the number of moles of solute…

Q: A solution is prepared by dissolving 0.5482 grams of iron(III) nitrate in enough water to make 100.0…

A: Molarity (M) :-  The number of moles of solute dissolved in one litre of solution is known as…

Q: Zinc metal and aqueous hydrochloric acid , HCI(aq) , react to give hydrogen has , H2 (g) , and ,…

A: Given : Mass of Zinc sample = 0.4000 g Concentration of HCl taken = 0.0179 M Volume of HCl solution…

Q: 3. A student followed the procedure of this experiment to determine the percent NaOCl in a…

A: The volume of bleaching solution diluted from The volume of  required to neutralize 20 mL bleaching…

Q: When 12.5 mL of 0.20 M Cu(NO3)2 solution and 37.5 mL of 0.64 M Al(NO3)3 solution are mixed, what is…

A: Given 12.5 mL of 0.20 M Cu(NO3)2 solution and 37.5 mL of 0.64 M Al(NO3)3 solution are mixed,  We…

Q: How many moles of Al are necessary to form 86.0 g of AIBrs from this reaction: 2 Al(s) + 3 Br2(1) 2…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: Attached probelm

A: The stoichiometric chemical reaction is one where the amount of reagents and products is such that…

Q: Approximately what mass of sodium hydroxide is needed to react completely with 309.0 mL of 0.87100 M…

A: Given data,Molarity of HC2H3O2=0.87100MVolume of HC2H3O2=309.0mLMolar mass of NaOH=40.01g/mol

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

A:

Q: 5.15 mol of LICI in 3.30 L of solution Express the molarity in moles per liter to three significant…

A:

Q: 2Na3PO4(aq)+3CuCl2(aq)→Cu3(PO4)2(s) +6NaCl(aq) What volume of 0.175 M Na3PO4 solution is necessary…

A: Given, Molarity of Na3PO4 solution = 0.175 M Volume of CuCl2 - 95.4 mL Molarity of CuCl2 = 0.120 M

Q: 1. H2SO4. The resulting solution contained excess acid and required 15.85 mL of 0.09850 M NaOH for…

A: The balanced equations are   CaCO3 + H2SO4 ----------> CaSO4 + CO2 + H2O    H2SO4 + 2 NaOH…

Q: Consider the following unbalanced reaction which is known to go to completion: Na3PO4(aq) +…

A: The reaction given is Na3PO4 (aq) + CaCl2 (aq)  ------->  Ca3(PO4)2 (s) + NaCl (aq) Balancing :…

Q: A supplement was tested for iron content in a laboratory. First, a random sample of 10 tablets…

A: #(a): Given the mass of the iron tablet taken to obtain Fe2O3(s) = 2.7544 g  Mass of pure and dry…

Q: (iii) When 90.00 mL of 0.200 M MnO4¬(aq) was reacted with 200.00 mL of 0.280M H2O2(aq), the amount…

A: The complete balanced reaction for the question is : 2MnO4- + 3H2O2 →2MnO2 + 3O2 + 2OH- + 2H2O…

Q: A sample of solid Eu(OH)3 was stirred in water at a certain temperature until the solution contained…

A: The concentration of hydroxide ion (OH-) in the solution is determined as follows.…

Q: How many grams of Ag2CO3 will precipitate when excess Na2CO3 solution is added to 41.0 mL of 0.744 M…

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Q: What volume of 0.445 M Na3PO4 solution, in milliliters, is necessary to completley react with 46.2…

A:

Q: Approximately what mass of sodium hydroxide is needed to react completely with 252.0 mL of 0.93190 M…

A: Given reaction,           Calculate the moles of acetic acid,

Q: What volume of 0.0500 M CoCl2 times 6H2O is required to react completely with 75.0 mL of 0.0500 M…

A: The balanced chemical reaction between the two given compounds can be shown as follows:

Q: Approximately what mass of sodium hydroxide is needed to react completely with 325.0 mL of 0.93100 M…

A:

Q: Which of the following will occur when a solution of Pb(NO3)2(aq) is mixed with a solution of…

A:

Q: 3. If 30.65 mL of Ca(OH), solution is needed to react with 0.240 g of primary standard H,C,0, •2H,O,…

A:

Q: 100.0 ml. of 0.800 M KI solution is mixed with 100.0 ml. of 0.500 M Pb(NO), solution. How many grams…

A:

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".