4Fe(CrO2)2 + 8 K2CO3 + 7 O2 --> 2Fe2O3 + 8 K2CrO4 +8CO2  Calculate the percent yield of Fe2O3 (MW=159.70 g/mol) if 1.75 grams is obtained from the reaction of 12.7 g of Fr (CrO2)2 (MW= 223.85 g/mol) and excess K2CO3 and O2?

Q: Chromium metal can be produced by the reduction of Cr2O3 with elemental silicon: 2 Cr203+3 Si →…

A:

Q: & When 15.00 g of KCIO: is heated it decomposes. Give the percentage yield 3.09 g of Ois produced at…

A: Mass of KClO3 = 15.00 g Actual yield of O2 = 3.69 g Molar mass of KClO3 = 122.55 g/mol

Q: Dteremine the limiting reaganet and calculate the theoretical mass of PbI2 by using limiting…

A: Given that, lead nitrate, Pb(NO3)2 reacts with potassium iodide, KI to produce lead iodide, PbI2.…

Q: (d) Consider a 1.0000 g sample containing 75% potassium sulfate and 25% MSÓ4. The sample is…

A: given, mass of sample = 1.0000 g

Q: The questions below refer to the equation: 3 Cu(s) + 8 HNO3(aq) · ---------> 3 Cu(NO3)2(aq) + 2…

A: 3 moles of Cu produces = 2 mol of NO  3 moles of Cu needs = 8 mol HNO3 a) given moles of Cu = 4…

Q: How many moles of NACl2 are needed if we want to make 38.74 g of PBCl2 bythe reaction 2Nacl+…

A:

Q: 2. Sodium sulfide, Na₂S, is made by the following reaction. Na₂SO4 (s) + 4C (s) - Na₂S (s) + 4 CO(g)…

A:

Q: Titanium(IV) oxide is a bright white solid that is used as a paint pigment (titanium white). It is…

A: Titanium oxide is bright white solid. It is made by the following Reaction:  FeTiO3 + H2SO4 → TiO2 +…

Q: Assuming you started with 3.23 g of sodium bicarbonate and your actual yield of solid product is…

A: Decomposition of a reaction produces two or more products. It will be formed by the reaction between…

Q: Consider the reaction 3CaCl,(aq) + 2N23PO4(aq) --> Caz(PO4)2(s) + 6 NaCl(aq) (molar mass of calcium…

A:

Q: If 7.720 grams of O₂ is mixed with 7.354 grams of Al and allowed to react according to the balanced…

A: Given data :  mass of O2 = 7.720 grams  mass of Al = 7.354 grams  The reaction :  4 Al (s) + 3O2(g)…

Q: AsO43+3 Ag+= Ag3AsO4 (0) The arsenate is converted into a solid (Ag3AsO4 (s)). If the mass of solid…

A: Given,

Q: A Imol CH3(60H 60.09CH3LO0H * I molCH3 COOH 0.1g CH3COOHy 0.00333 molO 头 OR 3.3*10 molo The attached…

A:

Q: Cu   +   8HNO3  --> 3 Cu(NO3)2    +  2 NO   +  4  H2O In the above equation how many moles of water…

A: Given  Mass of HNO3 = 197.1 g Number of moles of water = ?

Q: Consider the following reaction:       Mg(OH)2(aq)  +  2 HNO3(aq)  -->  Mg(NO3)2(aq)  +  2 H2O(l)…

A: Number of mol = Mass/Molar mass % Yield = 100 x Obtained amount/Calculated amount

Q: A chemistry student prepared lead(II) iodide from 10.0 g of lead(II) nitrate and aqueous potassium…

A: Percentage yield of any compound can be obtained by dividing the obtained yield with the theoretical…

Q: For the neutralization reaction H2SO4 + 2NaOH-> Na2SO4 +2H2O, how many grams of H2SO4 are needed…

A: The given reaction is :                   Molar mass of NaOH = 40 g/mol Molar mass of H2SO4 =…

Q: Consider the following reaction Ca(s) + 2HCl(aq) --> CaCl2(aq) + H2(g) What mass of Ca is needed…

A:

Q: Answer the questions about the balanced reaction 3A + 2B The molar masses are as follows: A = 10. g…

A:

Q: How many molecules of F2 are needed to produce 6.52g of NaF in the reaction below?  2 NaBr + F2 -->…

A: Given that , Weight of NaF = 6.52 g  Molecular mass of NaF = 42 g/mol

Q: LI3OCI (a solid electrolyte in lithium ion batteries) can be prepared as shown below. LICI 2 LİOH…

A: The amount of a product formed in a chemical reaction is determined by the limiting reagent. The…

Q: (IIIwith carbon to give iron and carbon monde Fe 2 O 2 (s)+3C(s) 2Fe(s)+3CO(g) How many grams of…

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

Q: Silver tarnishes in the presence of hydrogen sulfide and oxygen because of the following reaction:…

A:

Q: 1. (NH4)2CO3 + H₂O H₂CO3 + NH4OH A. Balance the Equation:

A: The Chemical reaction follows the law of conservation of mass. According to the law of conservation…

Q: Molar MaSses A = 104.35- D = 198.88 X = 251.95- E = 61.18 mole mole mole G = 126.49- mole Z = 35.55…

A: Percent yield = 10.440%

Q: Chromiun metal can be produced by the reduction of Cr2O3 with elemental silicon.  2 Cr2O3 + 3 Si…

A: Given: Mass of Cr2O3 = 350.0 g Mass of Si = 235.0 g Mass of Cr = 213.2 g

Q: One of the challenges astronauts face is in space travel is the build-up of carbon dioxide in their…

A:

Q: Macmillan Learning Chlorine gas can be prepared in the laboratory by the reaction of hydrochloric…

A: The balanced equation is   4 HCl (aq) + MnO2 (s) --------> MnCl2 (aq) + 2 H2O (l) + Cl2 (g)…

Q: You react 85.6 mL of 0.32 M AGNO3 with excess aqueous K2CrO4. What mass of solid precipitate is…

A:

Q: What quantity in moles of NaOH are there in 225.0 mL of 2.50 M NaOH?   What is the percent by weight…

A: * Mole = Mass of substance / Molar mass of substance   * Molarity = Moles of substance/volume of…

Q: calculate the percent yield if 1.08 g of copper is produced from 5.66 g of copper(II) sulfate and…

A: Given reaction is  Zn(s) + CuSO4(aq) --> ZnSO4(aq) + Cu(s)          Mass of CuSO4 = 5.66 g…

Q: Consider the reaction below: Pb(NO3)2 + HCl → PbCl₂ + HNO3 > Molarmass of Pb(NO3)2 = 321.2 g/mol;…

A:

Q: (0) 3AONO3 + 3 AgCI + Fe (NO3)3 Fe Clg -> If 25 grams of AgNOo is add of FeCla. How many grams 45…

A: 3 AgNO3 + FeCl3 ----->  3 AgCl + Fe(NO3)3   If 25 grams of AgNO3 is added to 45g of FeCl3 How…

Q: The following precipitation reaction is perfomed using 3.785 g of FeCk and 2.258 g of NaOH. FeCk…

A: The highest product amount produced in any chemical change is denoted as its "theoretical yield". It…

Q: how many moles of cobalt (III) bromide are obtained when 11.98 moles of bromine react with excess…

A: The explanation is given below-

Q: Given the following reaction and the molar masses below, what is the percent atom economy (% AE) for…

A: The objective of this question is to calculate the percent atom economy (% AE) for the formation of…

Q: If 50.0 g of water is combined with 155.3 g of PCl3, PCl3(l) + 3H2O (l) --> H3PO4 (aq) + 3HCl (aq)…

A:

Q: 3 Cu + 8HNO3 --> 3 Cu(NO3)2 + 2 NO + 4 H2O   In the above equation how many moles of water can be…

A: Given- Reaction-3 Cu + 8 HNO3 → 3 Cu(NO3)2 + 2 NO + 4 H2O Mass of HNO3 = 138.6 grams To find- Number…

Q: e reaction 2 KI + Pb(NO3)2 > Pbl₂ + 2 KNO3 many grams of lead(II) iodide, Pbl2, are produced from…

A: Given, 2KI + Pb(NO3)2 → PbI2 + 2KNO3 mass of potassium iodide (KI) react = 39.7 g mass of lead (II)…

Q: We did a gravimetric analysis of an unknown sulfate sample (dissolve in water with HCl) and reacted…

A: Answer: When 2 solutions of compounds are mixed and a precipitate formation takes place then such…

Q: I need help with questions 2-5 with guided steps.... I only got help with the first one which I…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: What amount of O2 is needed to produce 4.23 mol of CO2 in  the reaction  CH4+2O2=CO2+2H2O 6.36…

A: Given CH4 + 2O2 →CO2 + 2H2O Moles of CO2 = 4.23 mol

Q: Percent composition by mass of EACH compound given in the balanced chemical reaction

A: the given reaction is CaS4+2HCl+2H2O→4S+CaCl2+H2+H2O We know % composition =mass of required…

Q: To be able to produce a small amount of CO2 in the laboratory, 35 mL of 0.11 M Na2C2O4 and 20 mL of…

A:

Q: A mixture of 6.55 g hydrogen (H2. molecular weight 2.016 g/mol) and 37.5 g oxygen (O2, molecular…

A: Amount can be calculated as:-

Q: 2. Copper is extracted from chalconite (Cu2S) via the following reactions: reaction a: 2 Cu2S + 3 02…

A: Limiting reagent is the reactant present in limited amount than required to completely react and…

Q: F25gof a 23% by mass magnesium chloride (MW= 95.21 g/mole) solution is reacted with 125.0 mL da125M…

A: Here the problem is solved by mole ratio and the concept of limiting reagent. First it is determined…