12) Calcium carbide (CaC2) reacts with water to produce acetylene (C2H2) as shown in the unbalanced reaction below: CaC2 (s) + H2O (g) → Ca(OH) 2 (s) + C2H2 (g) How many grams of H2O are required to completely react with 82.4 g of CaC2. A) 1.29 B) 11.6 C) 46.3 D) 23.2 E) 18.0

Q: 7.104 When nitrogen dioxide (NO,) gas from car exhaust combines with water vapor in the air, it…

A: From the balanced chemical reaction of the NO2 with Water we can calculate each terms which is asked…

Q: The depletion of ozone (O3) in the stratosphere has been a matter of great concern among scientists…

A: The quantity of mass of NO2 produced is to be calculated. The balanced reaction is given as, O3 + NO…

Q: The combustion of ethane (C2H6)(C2H6) produces carbon dioxide and steam.…

A:

Q: 5. Consider the following reaction: 1Cl2 (8) 2NaCls) -> 2Na(s) + 4.1 g 3.2 g If 4.1 g of Na(s)…

A: a) We will findout the limiting and excess Reactant.  1- moles of Na = ( mass / molar mass )  moles…

Q: Consider the following unbalanced chemical equation NO₂ + H₂O → NO + HNO3 If 86.30 grams of NO2 is…

A:

Q: 3.78 Each copper(II) sulfate unit is associated with five water molecules in crystalline copper(II)…

A: If mtotal represents the mass of hydrated compound it can be mathematically represented as,…

Q: Potassium superoxide, KO, is used in rebreathing gas masks to produce oxygen. The reaction of…

A:

Q: 10. Freon-12 (CC12F2) is a gas used as a refrigerant. It is prepared by the reaction: 3CC14 (1) +…

A: we need to develop a stoichiometric relation between the mass of reactant required to the mass of…

Q: 7. How many moles of mercury (II) oxide (HgO) are needed to produce 125 g of oxygen (O )? 2H90 -->…

A:

Q: A mixture of hydrazine (N2H4; 32.05 g/mol)) and hydrogen peroxide (H2O2; 34.02 g/mol) is used as a…

A: Given: mass of N2H4 = 13.3 g mass of H2O2 = 18.7 g molar mass of N2H4 = 32.0452 g/mol molar mass of…

Q: An aqueous solution of NaOH can dissolve an aluminum sheet in the reaction: 2Al + 2NaOH +…

A: 2. Given information,       2Al + 2NaOH + 2H2O=2NaAlO2 + 3H2       126.4 g of NaOH is 97.7 g of Al…

Q: Enter your answer in the provided box. The reaction between nitric oxide (NO) and oxygen to form…

A:

Q: The chemical reaction of aluminum (AI) with Fe2O3 produces iron (Fe) and Al2O3. (iii) identify the…

A:

Q: When octane (CgH18) is burned in a particular internal combustion engine, the yield of products…

A:

Q: The depletion of ozone (O3) in the stratosphere has been a matter of great concern among scientists…

A: The Answer to the following question is given as:

Q: The depletion of ozone (O3) in the stratosphere has been a matter of great concern among scientists…

A: Answer: a) Limiting reagent is NO                 b) 2.10 g NO2 will be produced                c)…

Q: Equimolar amounts of H2 (9) and Br2 (9) are injected into an evacuated, rigid container, where they…

A: The reaction given is, Given: Mass of Br2 reacting = 1.6 g.

Q: Solid iron is allowed to react with an unlimited supply of water vapor to form solid magnetite…

A: We have to calculate the moles of magnetite produced.

Q: 9. Phosphorus reacts with oxygen gas to produce tetraphosphorus decoxide. 4 Po + 5 0g) P,O106) (s)…

A:

Q: The reaction between potassium superoxide (KO2) and carbon dioxide produces potassium carbonate and…

A: Recall the balanced reaction between KO2 and CO2  as follows 4KO2 + 2CO2  --->  2K2CO3 + 3O2…

Q: Neterence Nitrobenzene, C6 H5 NO2, an important raw material for the dye industry, is prepared from…

A:

Q: A 3.82-g sample of magnesium nitride is reacted with 7.73 g of water.…

A:

Q: Gaseous butane (CH3 (CH2)2 CH3) reacts with gaseous oxygen gas (O2) to produce gaseous carbon…

A: We have to calculate the theoretical yield of water.

Q: 2. Suppose in lab you heat salicylic acid, C-HsOs, with acetic anhydride, CAH&O3, to produce…

A: C7H6O3 + C4H6O3 .....> C9H8O4 + C2H4O2 Mass of salicylic acid (C7H6O3) = 2.00g Molar mass of…

Q: Be sure to answer all parts. The depletion of ozone (O3) in the stratosphere has been a matter of…

A: Molecular mass of O3= 16x3=48 Molecular mass of NO2 =14+16x2=46 Molecular mass of NO =14+16=30…

Q: In an industrial process for making nitric acid, the first step is the reaction of ammonia with…

A:

Q: Aqueous hydrobromic acid (HBr) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium…

A: Aqueous hydrobromic acid reacts with sodium hydroxide to form aqueous sodium bromide and water. The…

Q: Cyanogen gas, C2N2, has been found in the gases of outer space. It can react with fluorine to form…

A:

Q: 7. Nitrogen gas is produced in an automobile air bag. It is generated by the decomposition of sodium…

A: Reaction is given  2NaN3 (s) -----> 3N2 (g) + 2Na(s) since 2 moles of NaN3 Is required to produce…

Q: The reaction between nitric oxide (NO) and oxygen to form nitrogen dioxide (NO2) is a key step in…

A: According to stoichiometry ratio, 1 mole of oxygen produce 2 mole of NO2. Molar mass of oxygen…

Q: 3.24-gram sample of NaHCO3 was completely decomposed in an experiment. 2NaHCO3 → Na2CO3 + H2CO3 In…

A: NaHCO3 is Sodium bicarbonate and it is also known as  as baking soda or bicarbonate of soda.  It is…

Q: Potassium superoxide, KO, is used in rebreathing gas masks to produce oxygen. The reaction of…

A:

Q: 4 Al (S) + 302(g) 2AI203(s) How many grams of Al203 can be formed from 94.50 g of Al and 39.81 g of…

A: Given that:  Mass of Al = 94.50 g  Molar mass of Al = 27 g/mol Moles of Al = 94.50g÷27gmol-1 = 3.5…

Q: Ethanol, C2H5OH, reacts with phosphorus trichloride, PCl3: 3 C2H5OH(aq) + PCl3(aq) → 3 C2H5Cl(g) +…

A: Answer: Mass of Chloroethane (C2H5Cl)  produced is 193.5 g

Q: 3. Mass Ratio. Hydrogen gas for fuel cells can be made by decomposing methane (CH4), which is the…

A:

Q: Ammonia is produced by the reaction of hydrogen and nitrogen as follows N2(g)+3H2(g)→2NH3(g) ammonia…

A: • Theoritical yield can be calculated by the help of stichimetric coefficient    of reactant.• No of…

Q: The depletion of ozone (O3) in the stratosphere has been a matter of great concern among scientists…

A:

Q: theoretical yield

A:

Q: Hydrogen reacts with oxygen to produce water as follows: 2H2(g) + O2(g) → 2H2O(g)  How many moles…

A: The reaction is as:-  2H2 + O2 ---> 2H2O

Q: 26. Phosphorous trichloride, a precursor for the manufacture of certain pesticides and herbicides,…

A: P4 + 6Cl2 -------> 4PCl3 a) Given grams of P4 and Cl2 are converted into moles as follows,…

Q: 10. When hydrogen sulfide gas is bubbled into a solution of sodium hydroxide, the reaction forms…

A: Mass of hydrogen sulfide (Theoretical yield)  = 1.25 g  Percentage yield = 92.0 %  Mass of sodium…

Q: Aluminum reacts with chlorine gas to form aluminum chloride via the formula pattern: 2Al + 3Cl2 ➝…

A: The limiting reactant is determined as,

Q: Consider the reaction between solid scandium oxide and hydrogen chloride (HCl) gas to form solid…

A: The chemical reaction,  Sc2O3 + 6HCl -----> 2ScCl3 + 3H2O  Molar mass of scandium oxide = 137.91…

Q: For the reaction   Na2CO3+Ca(NO3)2⟶CaCO3+2NaNO3Na2CO3+Ca(NO3)2⟶CaCO3+2NaNO3 how many grams of…

A: For this reaction calculation of mass of prouduct is done through unitery method using mass balance.…

Q: The depletion of ozone (O3) in the stratosphere has been a matter of great concern among scientists…

A:

Q: Oxygen masks for producing O2 in emergency situation contains potassium superoxide (KO2). The…

A: A) Given : mass of CO2 exhaled = 0.65 g/min hence in 15 min, mass of CO2 exhaled = 0.65 X 15 = 9.75…

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".