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 (unbalanced)                                 CaF2 + H2SO4 ---> CaSO4 +  HF In one process, 6.00 kg of CaF2 are treated with an excess of H2SO4and yield 2.86 kg of HF. What is the percent yield of HF?

Q: Ozone, O3 is formed in vehicle exhaust by the reaction NO2(g) + O2(g) —-> NO(g) + O3(g). What is the…

A: Given:mass of NO2 =2.0gAlso we know,Molar mass of NO2 = 46gMolar mass of O3= 48g

Q: Gaseous methane CH4 reacts with gaseous oxygen gas O2 to produce gaseous carbon dioxide CO2 and…

A:

Q: 23) A chemist carries out this reaction in the laboratory, using 4.31 grams of zinc and an excess of…

A: Mass of Zn = 4.31 g Theoretical yield = 6.41 g Actual yield = 5.01 g

Q: small quantities of oxygen can be prepared in the laboratory by heating potassium chlorate, KCIO3…

A: The objective of this question is to calculate the amount of oxygen that can be produced from a…

Q: this reaction: Mg (s) + I₂ (s) → MgI₂ (s) If 2.02 moles of Mg react with 3.56 moles of I₂, and 1.76…

A: According to the chemical reaction equation,  2.02mol of Mg react completely with only 2.02mol of I2…

Q: 15.50 g of NH4Cl reacts with an excess of AgNO3.  In the reaction 35.50 g AgCl is produced. What is…

A: The balanced reaction taking place is given as, => NH4Cl + AgNO3 ------> AgCl + NH4NO3  Given…

Q: When 3.16 g of N2 is allowed to react with an excess of Li2O, 1.28 g of Li3N are produced. What is…

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Q: what is the percent yield of a reaction in which 41.5 g of solid tungsten (VI) oxide reacts with…

A:

Q: When 25.0 grams of AgNO3 are reacted with excess Na3PO4, 17.7 grams of Ag3PO4 are produced. What…

A: Answer:When two solutions of different substances are mixed and formation of a precipitate takes…

Q: For the equation Cu2O + C --> Cu + CO, if 2.73 moles of C are reacted with an excess of Cu2O, how…

A: The balanced equation of given reaction is,

Q: in this reaction 2VS3+9O2–> 2VO3+6 SO2 if we were to use 25.4 g of VS3 and 25.2 g of O2, and…

A:

Q: Calculate the number of moles of products of the combustion of C3H8 abundance equal to 1.8

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Q: In certain reaction Fe and O2 combine to form irom(III) oxide. 10.7 mole of Fe and 10.4 mole of O2…

A: Balanced chemical equation: 4Fe(s) + 3O2(g) ------> 2Fe2O3 This shows 4 moles of Fe reacts with 3…

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: See the reaction below. If 1.609 kg of N2O5 is formed when 1.568 kg of

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Q: Consider the reaction 2Na + 2H2O → 2NAOH +H2 If 10g Na reacted with 0.8 g H20, what would be the…

A: The limiting reagent is one which is completely used us in a chemical reaction. The excess reagent…

Q: Methanol is used in racing cars because it is a clean fuel. It can be synthesized according to the…

A: Given mass of hydrogen = 5 × 103 g Actual yield of methanol = 3.5 × 104 g

Q: A by-product of the reaction that inflates automobile air bags is sodium, which is highly reactive…

A:

Q: What is the actual amount of magnesium oxide produced when excess carbon dioxide reacts with 44.8 G…

A: The chemical reaction is- 2Mg(s)+CO2(g)→2MgO(s)+C(s) The mass of Magnesium metal = 44.8 g The molar…

Q: Be + 2 HCl ➞ BeCl2 + H2   Calculate the percent yield if 25.0 g of beryllium reacts with excess…

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Q: In this reaction: Mg (s) + I 2 (s)-> Mgl₂ (s), if 10.0 g of Mg reacts with 60.0 g of 12, and 53.98 g…

A: Answer:The reactant that exhausted first in the chemical reaction and decides the yield of product…

Q: 4.41 The percentage yield of the following reaction is consis- tently 87%. CH,(g) + 4 S(g) →CS,(g) +…

A: Given reaction :-  CH4(g) + 4S(g) -----> CS2(g) + 2H2S(g)  Mass of CS2 obtained = 80.0 g

Q: Determine the limiting reactant (LR) and the Theoretical Yield (in g) of nitrogen that can be formed…

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Q: A florist prepares a solution of nitrogen-phosphorus fertil-izer by dissolving 5.66 g of NH₄NO₃ and…

A: Given: Mass of NH4NO3 = 5.66 g Mass of (NH4)3PO4 = 4.42 g And volume of final solution = 20.0 L

Q: Given the chemical reaction BaCl₂ + 2AgNO, --> 2AgCl + Ba(NO₂), Calculate: A) If they start with…

A: A) Given that:  Mass of BaCl2 = 3.68g Mass of AgNO3 = 3.02g  Molar mass of BaCl2 = 208g/mol Molar…

Q: Nitrobenzene, CH,NO,, is an important raw material for the preparation of dyes. It is prepared from…

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Q: Be sure to answer all parts. The reaction between aluminum and iron(III) oxide can generate…

A:

Q: According to the following reaction, how many grams of water will be formed upon the complete…

A: The balanced reaction given is, 4 HCl (aq) + O2 (g) ------> 2 H2O (l) + 2 Cl2 (g)  Given : Mass…

Q: The combustion of methanol (CH3OH) in internal combustion engines produces water and carbon dioxide…

A: D. The balanced equation for the combustion of methanol (CH3OH) is given below :  2CH3OH  +  3O2  →…

Q: In certain reaction Fe and O2 combine to form irom(III) oxide. 18.1 moles of Fe and 12.4 mole of O2…

A: Given, moles of Fe = 18.1 moles Moles of O2 = 12.4 moles First we find the limiting and the excess…

Q: If 4.11 mol of C,H, reacts with excess O,, how many moles of CO, will be produced by the following…

A:

Q: Pure antimony (Sb) can be prepared by heating the antimony ore (Sb2S3) in the presence of iron as…

A:

Q: What is the percent yeild of the reaction when 20.0 g of ethane reacts with excess oxygen to…

A: No of moles of ethane = Mass/Molar mass of ethane = 20.0g/(30.07gmol-1) = 0.665 moles

Q: Fernando is doing his pre-lab homework for Chemistry. He is asked to predict how many grams of CO2…

A: We know that: percent yield=experimental yieldtheoretical yield×100

Q: 9.87 g of ammonia, NH3, react completely according to the reaction: 2 NH3 + CO₂ -> CN₂OH4+ H₂O If…

A: The given mass of ammonia = 9.87 gThe experimental yield of urea = 13.74 gThe percent yield of the…

Q: Hydrazine (N₂H4), a component of some rocket fuels, is industrially produced using the following…

A: For the development of green chemicals, a concept called the atom economy came to light. If…

Q: A 14.570 g sample of CaCl₂ was added to 12.085 g of K₂CO3 and mixed in water. A 3.556 g yield of…

A:

Q: The reaction of 150. g of LiOH gives 218.4 g LiHCO3 in the reaction of  LiOH(s) + CO2(g) -->…

A: LiOH(s) + CO2(g) --> LiHCO3(s)mass of LiOH react = 150. gActual yield of LiHCO3 = 218.4 g Percent…

Q: A chemist carries out this reaction, starting with 30.5 g of C6H6 and an excess Br2: C6H6(l) + Br2…

A: A numerical problem based on theoretical yield, which is to be accomplished.

Q: Copper I iodide, Cul, is not stable enough to last long in storage, so it is generally made just…

A:

Q: oxidation of NH3, and the reaction is represented by the equation 4NH3 + 5O2 → 4NO + 6H2O An 9.5-g…

A: First convert mass into molar mass  Then use mole-mole relationship  After getting mole of No then…

Q: In a certain reaction between CO and Fe3O4, the theoretical yield of Fe is calculated to be 47.2g.…

A: The percent yield is unique way that gets utilized in depicting the reactant’s quantity that…

Q: A chemist wishes to make 5.00g of CuCl2s) by the reaction: 2CuCl2(aq) + NazSO3 (aq) + H2O) 2CUCI(s)…

A: Mass of CuCl formed = 5.00 g  Yield of reaction = 85.0 %  Limiting reactant = CuCl2  Excess reagent…