The metals industry was a major source of air pollution years ago. One common process involved "roasting" metal sulfides in the air: 2 PbS(s) +3 O2(g) +2 PbO(s) +2 SO2(g) If 9.53 mol of PbS is heated in air, what amount of Oz is required for complete reaction? mol O2 What amounts of PbO and SO2 are expected? mol PbO mol SO,

Q: Vanadium (V) oxide is decomposed into the elements sodium and chlorine by means of electrical…

A: 2V2O5 --> 4V  + 5O2 this oxygen oxidises sulphur to sulphur dioxide 5S  +   5O2 --> 5SO2  five…

Q: Consider the reaction: 2Na(s) + Cl₂(g) → 2NaCl(s) A student is making sodium chloride (NaCl(s)) by…

A: we have to calculate the percentage yield

Q: KCV 4.4, IWE 4.6 . Determine the limiting reactant for the reaction. Magnesium oxide can be made by…

A: 2 Mg(s) + O2(g) → 2 MgO(s)  2 mol       1 mol        2 mol mass of Mg = 10.2 g mass of O2 = 10.4 g…

Q: Zinc sulfide reacts with oxygen according to the reaction: 2 ZnS(s) + 30:(g) – 2 ZnO(s) + 2 SO-(g) A…

A: Given that : Reaction = 2 ZnS(s) + 3O2(g) → 2 ZnO(s) + 2SO2(g) Initial mol of ZnS = 4.2mol Initial…

Q: What is the mass in grams of H2 that can be formed from 54.6 G of NH3 in the following reaction? 2…

A: From the stoichiometry, we can easily calculate , the problem.

Q: For the chemical reaction: 2KI+Pb(NO3)2⟶PbI2+2KNO3 how many moles of lead(II) iodide will be…

A: Given. the balanced chemical equation - We know that the values of the molar mass of the compounds…

Q: Consider this reaction, which occurs in the atmosphere and contributes to photochemical smog: H2(g)…

A: Given, mass of H2 = 11.3 g we know, molar mass of H2 = 2.016 g/mol molar mass of HI = 127.911 g/mol…

Q: Morphine (C₁₇H₁₉NO₃) is a painkiller in the opiate family. A sample of morphine was discovered that…

A:

Q: Pure iron, Fe, can be produced from an ore called hematite, Fe, O,, by reaction with carbon at high…

A: Given Reaction: 2Fe2O3 + 3C ---------> 4Fe + 3 CO2  Mass of Iron= 17 tons To Calculate: Mass of…

Q: Diborane is produced when hydrogen gas reacts with boron as shown by the chemical equation below.…

A: Given the balanced chemical reaction: 2B(s)+3H2(g)→B2H6(g) The no. of moles of H2=8.48 moles. The…

Q: One method used in the eighteenth century to generate hydrogen was to pass steam through red-hot…

A: Given 3Fe (s) + 4H2O (g) →Fe2O3 (s) + 4H2 (g) Molar masses:  Fe = 55.845 g/mol  H₂O = 18.01528 g/mol…

Q: Morphine (C₁₇H₁₉NO₃) is a painkiller in the opiate family. A sample of morphine was discovered that…

A: The reaction of the combustion of morphine is: 4C17H19NO3+85O2→68CO2+38H2O+4NO2 Calculation of no.…

Q: Silver sulphide and hydrogen combine to form silver and hydrogen sulphide.  The equation for the…

A: In this question, we want to determine the percentage yield of the Silver ( Ag ).  You can see…

Q: Consider the combustion of methane.   CH4(g)+2O2(g)→CO2(g)+2H2O(g)  Suppose 2.5 mol  of methane are…

A: Given:Moles of CH4 = 2.5 mol.Moles of O2 = 3.5 mol.

Q: If 13.2 g of NH3 is collected following the reaction of 2.88 mol NO with,7.00 mol H2, calculate the…

A: Given: Mass of NH3 formed experimentally = 13.2 g. Moles of NO taken = 2.88 mol. Moles of H2 taken =…

Q: 2 NaN3(s) ------> 2 Na(s) + 3 N2(g) How many grams of nitrogen are produced when 10. grams of…

A: The given reaction is,                     2 NaN3(s) ------> 2 Na(s)  +  3 N2(g) Clearly, from…

Q: Phosphorus can be prepared from calcium phosphate by the following reaction: 2Ca3(PO4)2(s) +…

A: The given equation is as, Mass of Ca3(PO4)2 = 75% of mass of Phosphorite Mass of Ca3(PO4)2 = 0.75 x…

Q: an iron nail has a mass of 1.12 g, what mass of rust would form

A: Number of moles = mass / molar mass  Number of moles of Fe = mass of Fe /55.845gmol-1

Q: Morphine (C₁₇H₁₉NO₃) is a painkiller in the opiate family. A sample of morphine was discovered that…

A: Given: When morphine undergoes combustion, carbon dioxide is produced. Mass of mixture            =…

Q: Phosphorus can be prepared from calcium phosphate by the following reaction: 2Caz (PO4)2 (s) + 6SIO2…

A: Now, as we are given the mass percentage of the phosphorite mineral that is 75% by and the weight is…

Q: If a sample of coke is 95% carbon by mass, determine the mass of coke needed to react completely…

A:

Q: 2. Methanol burns in air to form carbon dioxide and water: CH;OH + O2 → CO2+ H2O If 209 g of CH3OH…

A: The balanced equation is 2 CH3OH + 3 O2 --------> 2 CO2 + 4 H2O  Molecular weight of CH3OH =…

Q: NaN3(s) ------> 2 Na(s)  +  3 N2(g) How many grams of nitrogen are produced when 2.5 grams of…

A: Write the completely balanced equation. 2 NaN3 (s)→2 Na s+3 N2 (g) Molar mass of NaN3 is 65.0099…

Q: Methanol, CH3OH, can be prepared from carbon monoxide and hydrogen according to the reaction CO (g)…

A: The reaction given is  CO (g) + 2 H2 (g) ------> CH3OH (l) Given : volume of CH3OH produced = 1.0…

Q: Morphine (C₁₇H₁₉NO₃) is a painkiller in the opiate family. A sample of morphine was discovered that…

A: Mass % of morphine = Mass of morphine x 100/Mass of mixture

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: Based on the balanced reaction: 2 Al + 3 Cl2→ 2 AlCl3, what is the maximum number of moles of AlCl3…

A: The number of moles of Al and Cl2 is 2.11×101 mol and 1.990×101 mol, respectively.

Q: 2 N₂O5(g) --> 4 NO₂(g) + O₂(g) True/False: The equation is already balanced as it is written.

A: Since, Balanced reaction means that both side number of atom present in equal number. Thus,

Q: Lead (II) chromate, PbCrO4, is a yellow paint pigment (called chrome yellow) prepared by a…

A:

Q: In the reaction between 4.28 g of  K(s) and excess of O2(g),  potassium oxide is formed .  What mass…

A:

Q: Morphine (C₁₇H₁₉NO₃) is a painkiller in the opiate family. A sample of morphine was discovered that…

A: Molar mass of morphine is 285.34 g/mol. When a mixture of NaCl and morphine undergoes combustion,…

Q: Wine is produced by the fermentation of grapes. In fermentation, the carbohydrate glucose (C 6H 12O…

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

Q: How many moles of sodium chlorate (NaCIO3) are required to produce 0.235 mol O2? 2 NaCIO3(s) – 2…

A:

Q: Hydrogen fuel can be generated using a process called coal gasification. Hydrogen gas is formed by…

A: Given that,    Hydrogen gas fuel is generated by the reaction of coal and oxygen in the presence of…

Q: Morphine (C₁₇H₁₉NO₃) is a painkiller in the opiate family. A sample of morphine was discovered that…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: ollows: 2Ca(s) +02 ss of Ca = 40 g/m he mass (g) of cal epared from 4.20 1) What amount (m ced from…

A: Given, Mass of Ca = 4.20 g Molar mass of Ca = 40 g/mol Moles of Ca = mass/molar mass  .   = 4.20/40…

Q: Sodium sulfate is known to form three different hydrates. The molar mass of a hydrate of sodium…

A: Given,  molar mass of general formula Na2SO4 · n H2O is 322.1 g/mol.

Q: if 80g of ethanol (CH5OH) are burnt completely, how many molecules of water would be produced ?…

A: Given combustion reaction of ethanol is as follows(corrected equation) : C2H5OH (I) + 3O2 (g)…