Hydrogen fluoride is used in the manufacture of Freons (which destroy ozone in the stratosphere) and in the production of aluminum metal. It is prepared by the reaction CaF2 + H2SO4→CASO4 + 2HF In one process, 5.75 kg of CaF2 is treated with an excess of H,SO4 and yields 2.85 kg of HF. Calculate the percent yield of HF. % yield

Q: What amount of water (in moles) is produced by the reaction of 5.00 mol C5H12 with 27.5 mol O2?…

A:

Q: Several brands of antacids use Al(OH)3 to react with stomach acid, which contains primarily HCl:…

A: A balanced chemical reaction is a reaction in which the number of atoms on the reactant side is…

Q: Hydrogen fluoride is used in the manufacture of Freons (which destroy ozone in the stratosphere) and…

A:

Q: The concentration of urea in a solution prepared by dissolving 16 g of urea in 36 g of H2OH2O is…

A: In order to calculate the mass % of urea we have to first write down the given data: Mass of…

Q: Consider the reaction. 2 Pb(s) + O,(g) → 2 PbO(s) An excess of oxygen reacts with 451.4 g of lead,…

A: Note : As per our guidelines we are supposed to answer first question please resubmit the other…

Q: Hydrochloric acid can be prepared by the following reaction:  NaCl(s)+ H2SO4(aq)--> HCl(g) +…

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

Q: The yellow precipitate, barium sulfate (BaSO4), is formed when sodium sulfate (Na2SO4) reacts with…

A: Given: Mass of sodium sulfate = 12.50 g Mass of barium bromide = 28.0 g Actual yield of barium…

Q: Dimethyl oxalate, an important pharmaceutical chemical, can be prepared by reacting oxalic acid with…

A:

Q: What is the mass in grams of NO that will be produced from 10.7 g of NO₂

A: Given :- 3 NO₂(g) + H₂O(l) → 2 HNO₃(g) + NO(g)                Mass of NO2 = 10.7 g  To calculate :-…

Q: WEIGHT/MOLE CALCULATIONS . Calculate the prama of substance required to prepare the following…

A: Solution [9.] (a.) 250 ml of 5 % (w/v) NaNO3 = 250 ml × 5 g / 100 ml NaNO3 = 12.5 g NaNO3 (b.) 500…

Q: How many grams of NO will be produced from 80.0 g of NO₂ reacted with excess water in the following…

A: Given, mass of NO2 = 80.0 g  Molar mass of NO2 = 46.0 g/mol Molar mass of NO = 30.01 g/mol

Q: The drug Antabuse is used to treat alcoholism by making patients violently ill if they drink…

A: The neutralization reactions involve the reactions between an acid and a base to produce its…

Q: Determine the limiting reactant and mass of CO2 gas produced when 11.0 g of Na2CO3 is added to a…

A: The reaction between Na2CO3 and HCl is  Na2CO3 + 2 HCl → 2 NaCl + H2O + CO2 Moles = Mass/ Molar Mass…

Q: A 12.3 g sample of an alloy of Mg and Al produces 1.66 mol of H2 when added to excess HCl. What…

A: Given: Total mass of alloy = 12.3 g. And moles of H2 produced = 1.66 mol. Assuming that there are…

Q: During a lab preparation of aspirin, a student used 0.98 g of salicylic acid and an excess amount of…

A: Given: 0.98 g of salicylic acid and an excess amount of acetic anhydride react to produce 0.65 g of…

Q: How many molecules of O2 will react with 6.022 × 1023 molecules of H2 to make water? The reaction is…

A: We have to calculate molecules of O2 using the given reaction and molecules of H2

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 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: The thermite reaction (shown below) is very important in welding projects and other important…

A: In a chemical reaction, two or more reactants react with each other to form a new substances. This…

Q: A 12.3 g sample of an alloy of Mg and Al produces 1.66 mol of H2 when added to excess HCI. What…

A: Given, Mass of the sample = 12.3 g  Mass of H2 gas produced = 1.66 mole  What is the percentage of…

Q: When 305.0 grams of silver nitrate reacted with magnesium chloride, 23.7 grams of silver chloride…

A:

Q: In beverages, such as Gatorade, the quantity of FD&C Blue 1 is added in a bottle of 946 ml Is 0.100…

A: Given that -  The quantity of FD&C Blue 1 = 0.100 mg/L  Volume of bottle = 946 mL  Molar mass of…

Q: Hydrogen fluoride is used in the manufacture of Freons (which destroy ozone in the stratosphere) and…

A: Percentage yield is the ratio of actual yield by theoretical yield.

Q: Consider the reaction. 2 Pb(s) + 0,(g) 2 PbO(s) An excess of oxygen reacts with 451.4 g of lead,…

A: %yield = ( Actual yield÷ Theortical yield)×100%

Q: How many moles of HNO₃ will be produced from the reaction of 12.5 g of NO₂ with excess water in the…

A:

Q: Sodium bicarbonate can be used to neutralize stomach acid, HCl(aq) and costs approximately 50 cents…

A: NaHCO3(s) + HCl(aq) --> NaCl(aq) +CO2(g) + H2O(l) At equivalence point Number of moles of NaHCO3…

Q: A 0.8761 g sample of iron ore is dissolved in acid, the iron is oxidized to the +3 state and then…

A:

Q: ) A 1.20 gram sample of ammonium phosphate is dissolved in 100. mL of water. The solution is poured…

A: The balanced equation is 2(NH4)3PO4 (aq) + 3 Mg(NO3)₂(aq) --> Mg3(PO4)₂ (s) + 6NH4NO3(aq) Net…

Q: Metallic aluminum reacts with MnO2 at elevated temperatures to form manganese metal and aluminum…

A: The reaction between MnO2 and Al –metal is shown as: Here, MnO2 and Al react in 3:4 ratio. Given…

Q: Calcium carbide, CaC2, is an important preliminary chemical for industries producing synthetic…

A: Given :  CaO + 3 C → CaC2 + CO  amount of C = 10.2 g  To be calculated :  amount of CaC2 (in g)

Q: A sample of 108.2 g of Calcium oxide was obtained by heating 258 g of calcium carbonate. What is the…

A: The percent yield is the ratio of the amount of products actually obtained and the theoretically…

Q: Magnesium oxide can be made by heating magnesium metal in the presence of the oxygen. The balanced…

A: Given  Reaction  2Mg(s)  + O2(g)  →  2MgO(s) Mass of Mg = 10.2 gram  Mass of O2  = 10.6 gram  Actual…

Q: moles of NO₂

A:

Q: Metallic titanium and its alloys (especially those with aluminum and vanadium) combine the…

A:

Q: How many grams of NO will be produced from 58.2 g of NO2 reacted with excess water in the following…

A: Interpretation: The grams of NO that will be produced from given grams of NO2 in presence of excess…

Q: what is the percent yield?

A:

Q: 6._Mg(OH)2 + _H3N→_H20 +_Mg3N2 + heat a. Balance the reaction b. What is the reaction type? C. If…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: Industrially, vanadium metal, which is used in steel alloys, can be obtained by reacting vanadium(V)…

A: Limiting reagent is the reagent which is consumed in the chemical reaction completely. It decides…

Q: What amount of water (in moles) is produced by the reaction of 6.00 mol C,H12 with 36.0 mol O2?…

A: Given, Moles of C5H12 = 6.00mol. Moles of O2 = 36.0mol. The balanced reaction can be given as…

Q: In a certain experiment two solutions are prepared and mixed. Solution 1 is prepared by dissolving…

A: Answer:- This question is answered by using the simple concept of stoichiometry which given the…

Q: How many grams of NO will be produced from 72.3 g of NO₂ reacted with excess water in the following…

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

Q: Industrially, vanadium metal, which is used in steel alloys, can be obtained by reacting vanadium(V)…

A: The reaction taking place is, => 5 Ca + V2O5 ------> 5 CaO + 2 V Given : Mass of V2O5 = 1.540…

Q: For the balanced equation shown below, if the reaction of 77.0 grams of CaCN2produces 27.1 grams of…

A: Given: Practical yield of NH3 = 27.1 g By stoichiometry of reaction: Moles of NH3 = 2 x moles of…

Q: Calcium oxide can be used to "scrub" carbon dioxide from air. What mass of CO2 could be…

A: The mass of CO2 is to be calculated

Q: Urea (CH4 N2O) is a common fertilizer that can be synthesized by the reaction of ammonia (NH3) with…

A: 2NH3 (aq) + CO2 (aq) →CH4N2O(aq) + H2O(l) 136.4kg.       211.4kg.         168.4kg Molar mass of…

Q: Sodium biphosphate, used in medicine as a saline laxative prior to colonoscopy and as a stabilizer…

A: NaOH + H3PO4 ------->

Q: Give the step by step solution in solving for the Mass to Mass Stoichiometry Calculation given CaS5…

A: Limiting reagent : Regaent which is present in less amount than the required amount. Limiting…

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".