The reaction of Cr2O3 with silicon metal at high temperatures will make chromium metal. 2Cr2O3(s)+3Si(s)=4Cr(l)+3SiO2(s). The reaction is begun with 173.00g of Si and 82.00g of CrzO3. Given Cr2O3 is the limiting reactant, how many grams of the excess reactant are left after the reaction is complete?

Q: Boron forms a series of compounds with hydrogen, all with the general formula B₂ Hy. X BH₁(s) +…

A: Given: BxHys+excess O2g→x2B2O3s+y2H2Og Weight of BxHy is 0.207 g Weight of B2O3 is 0.590 g Molecular…

Q: If 4.44 mol of C5H₁2 12 reacts with excess O₂, how many moles of CO₂ will be produced by the…

A: The given reaction is as follows:The moles of  given = 4.44 molThe number of moles of  produced = ?

Q: 7.5 g of Pb(NO3)2 (aq) is reacted with excess KBr (aq) to produce 4.3 g of PbBr2 (s). What is the…

A: Reaction: Pb(NO3)2 (aq) + 2 KBr (aq) → PbBr2(s) + 2 KNO3(aq)   331.2 g…

Q: f 16.2 g of PbH3 and 13.4 g of O2­ react in the following reaction, 4 PbH3 (g) + 5 O2 (g) -->4 PbO…

A: To calculate the mass of PbO obtained if the percentage yield is 85.6%. Given reaction is 4 PbH3 (g)…

Q: If you have 1 mol Xe and 1 mol F2; how many moles of XeF2 can you create in the following chemical…

A:

Q: The metals industry was a major source of air pollution years ago. One common process involved…

A: Given the reaction is, 2PbS+3O2---->2PbO+2SO2 Mole of PbS is 9.53mol. We have to calculate mole…

Q: If 7.73 mol of C5H12 reacts with excess O2, how many moles of CO2 will be produced by the following…

A: In this question we have to find out the correct answer of given problem by the help of unitary…

Q: Pure iron, Fe, can be produced from an ore called hematite, Fe2O3, by reaction with carbon at high…

A: In the given reaction->weight of iron = 42.0 tonsThe complete reaction is ->>2Fe2O3   +…

Q: For the reaction 2H2+O2➡️2H2O , if 30.0 g of H2 is reacted with 20.0 g of O2, what mass of the…

A: The mass of excess reagent left over is given below

Q: The limiting reagent is

A:

Q: Take the reaction: NH3 + O2 ---> NO + H2O. In an experiment, 3.25 g of NH3 are allowed to react with…

A:

Q: Consider an example of a thermite reaction: 3 CuO(s)  +  2 Al(s)  →  3 Cu(s) +  Al2O3(s) When 5.00…

A: we have to calculate the percentage yield of the reaction

Q: What is the percent yield?

A: Given :-  Number of moles of Zn = 1.912 mol  Actual yield of ZnI2 = 515.6 g  To calculate :-…

Q: Aluminum chloride, AlCl (MW = 62.44 g/mol), is produced by reacting aluminum (AW = 26.98 g/mol) with…

A:

Q: Sodium azide, an explosive chemical used in automobile airbags, is made by the following reaction:…

A: Given, mass of NaNO3 = 10.0 g mass of NaNH2 = 15.0 g percentage yield = 100%   To calculate : mass…

Q: In the following reaction, identify the limiting reactant: C3H8 (g) + 5 O2 (g) → CO2 (g) + 2 H2O…

A: The reactant that is totally consumed in the reaction is known as limiting reactant.  The amount of…

Q: Methanol (CH3OH) burns in air according to the equation 2CH;OH + 30, → 2CO, + 4H,O If 229 g of…

A:

Q: Hydrazine can be synthesized via the following reaction: 2NH3(aq) + Cl2(g) + 2NaOH(aq) → N₂H4(aq) +…

A:

Q: How many grams of H₂ can be formed from 54.6 grams of NH₃ in the following reaction? 2 NH₃(g) → 3…

A: Given that the mass of ammonia is 54.6 g which decomposes to form nitrogen gas and hydrogen gas. The…

Q: If 0.329 g of Fe3O4 and 0.812 g of Al are available for the following reaction: [4] 3 Fe3O4 + 8 Al →…

A: Al acts as a reducing agent in this reaction. Al can reduce the Fe from Fe3O4

Q: Pure iron can be formed from iron ore through the process below. Suppose 158 g of Fe2O3 reacts with…

A: Ratio of experimental yield to the the theoretical yield multiply by 100 is known as percentage…

Q: In an experiment, 0.70 g C2H4 (molar mass: 28 g/mol) reacts with 2.62 g O2 (molar mass: 32 g/mol)…

A:

Q: How many grams of H2O are formed when 90.5 g of Si2H 6 reacts with excess O2 in the following…

A: The objective of this question is to calculate the amount of H2O produced when a certain amount of…

Q: hat are the percentages of carbon, hydrogen, and nitrogen in the compound? What is the empirical…

A: Solution: So this question is from the stoichiometry. We  have general knowledge of formulae for…

Q: If 16.2 g of PbH3 and 13.4 g of O2­ react in the following reaction, 4 PbH3 (g) + 5 O2 (g) -->4 PbO…

A: The reaction taking place is given as, => 4 PbH3 (g) + 5 O2 (g) ------> 4 PbO (s) + 6 H2O (g)…

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: Oxygen gas can be produced by the decomposition of solid NaNO3. The equation for this reaction is:…

A: Mass of O2 produced = 124 gMass of NaNO3 required = ?

Q: A reinforced steel cylinder is filled with 21.0 moles of hydrogen and 12.0 moles of oxygen. The…

A: Given: Moles of Hydrogen: 21.0 mol Moles of Oxygen: 12.0 mol To Calculate: The theoretical yield in…

Q: Methanol, which is present in mentholated cough drops, is an organic compound containing only C, H…

A: Combustion is a high-temperature exothermic redox chemical reaction between a fuel and an oxidant,…

Q: 3 FeS2   +  11 O2   →  Fe3O4   +  6 SO3 100 g of iron sulfide was reacted with excess oxygen,…

A: The amount of product formation will take place according to limiting reagent. In the given case,…

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

A: Given: Mass of KCIO3 = 69.3 g Molar mass of KCIO3 = 122.55  g/mol Molar mass of O2 = 32.0 g/mol

Q: If   4.5 moles of Zn and  2.0  moles of O2 were reacted according to the following balanced…

A: According to the balanced reaction------ 2Zn + O2----------> 2ZnO 2mole of Zn react with 1mole of…

Q: you have 269.6 g of chromium that react to oxygen, how many moles of chromium (III) oxide will you…

A: To calculate moles of chromium(III) oxide , we would use dimensional analysis method . First we…

Q: How many grams of CO₂ can you produce by reacting 10.85 g of Fe₂O₃ with excess CO according to the…

A:

Q: Calculate the mass (in grams) of Fe3O4 expected to be produced from the reaction of 2.11 g of Fe…

A:

Q: A chemist wishes to perform the following reaction: N2 + 3 H2 → 2 NH3 If only 14.0 g of N2 is…

A:

Q: How many moles of Al are necessary to form 28.6 g of AlBr₃ from this reaction: 2 Al(s) + 3 Br₂(l) →…

A: Given , mass of AlBr₃  = 28.6 g Thus, moles of AlBr₃  = mass of AlBr₃ molar mass of AlBr₃  = 28.6…

Q: theoretical yield

A:

Q: In the following reaction, identify the limiting reactant: C3H8 (g) + 5 O2 (g) → CO2 (g) + 2 H2O…

A: Given  Reaction  C3H8(g)  + 5 O2(g)   →  CO2(g)  + 2 H2O(g) Number of mole of C3H8 =  1 mole  Number…

Q: NO and H2O are produced from the reaction below: 4 NH3 + 5 O2 → 4 NO + 6 H2O If 333 g of NH3 is…

A: 4 NH3 + 5 O2 → 4 NO + 6 H2Owhen four mole of ammonia produces 6 moles of H2O.

Q: Phthalonitrile (C₈H₄N₂) is produced by the ammoxidation of o-xylene (C₈H₁₀) according to the…

A: Given  Reaction  C8H10(l)  +  O2(g)   +  NH3(g)   →  C8H4N2(s)   +  H2O(l) Mass of o- xylene  =…

Q: Calculate the theoretical yield in grams AlI3 from the complete reaction of 18.3 grams Al according…

A: • The given balanced chemical equation is,       2 Al(s) + 3 I2(s) → 2 AlI3(s)  • The values…

Q: Heptacarbon octahydride is an effective gasoline additive. In the presence of oxygen gas (and a…

A: Heptacarbon octahydride reacts with oxygen to form carbon dioxide and water. The equation for the…

Q: One method of purifying nitrogen oxide (NO) before it is released from a smoke stack is to react it…

A: Since NO is present in excess, it is the excess reagent and ammonia is the limiting reagent. Given…

Q: What is the theoretical yield in grams of Ca(OH)2 if 2.04 g of KOH react with 3.02 g of CaCl2•2H2O…

A:

Q: Consider the following reaction: 2 C2H6O2 +5 02 → 4 CO2 +6 H2O What mass, in grams, of H2O is formed…

A:

Q: Aluminum chloride, AlCl (MW = 62.44 g/mol), is produced by reacting aluminum (AW = 26.98 g/mol) with…

A: The balanced equation for the reaction of Al(s) and Cl2(g) to form aluminum monochloride, AlCl(MW =…

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".