Urea [(NH2)2CO] is prepared by reacting ammonia with carbon dioxide. In one process, 637.2 g of NH3 are treated with 1142 g of CO2. (a) Which of the two reactants is the limiting reagent? (b) what is the mass of (NH2)2 CO formed? (c) how much excess reagent in grams is left at the end of the reaction? 2NH3(g) + CO2(g) (NH₂)2CO (aq) + H₂O (1)

Q: What mass (in g) of iron (Fe, molar mass = 55.85 g∙mol–1) is needed to experimentally produce 50.0 g…

A: First we need a balanced reaction equation: 4 Fe + 3 O2 →2 Fe2O3 Next, since 50.0 grams of iron(III)…

Q: A sample of a substance with the empirical formula XCl₂ weighs 0.5984 g. When it is dissolved in…

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

Q: Ammonia gas can be prepared by the reaction CaO(s) + 2 NH,CI(s) → 2 NH3(g) + H;O(g) + CaCl;(s) If…

A:

Q: A sample of a substance with the empirical formula XCl3 weighs 0.5706 g. When it is dissolved in…

A: XCl3 + 3 AgNO3 -> 3AgCl + X(NO3)3 According to the above balanced equation 3 x number of moles of…

Q: Grignard reagents, which contain a C—Mg bond, have thegeneral formula CH₃—(CH₂)ₓ—MgBr and are…

A: GIVEN: General formula CH₃—(CH₂)ₓ—MgBr To Solve: a)mass percentof Mg if x=0 b) mass percent of Mg if…

Q: 2 NH3 (g) + co2 (g) → (NH2)2CO (aq) + H2O (I) In one process, 700 g of NH3 are treated with 1253…

A: The given grams are first converted into moles.

Q: Thirteen grams of titanium metal react with sixty grams of bromine. (i) Calculate the mass (in gram)…

A: The balanced chemical reaction is as follows: Ti(s)+2Br2(l)→TiBr4. The mass of Ti=13 g. The mass of…

Q: In the following diagram, the white spheres represent hydrogenatoms and the blue spheres represent…

A:

Q: (a) cyclobutane,     Molar Mass = (b) cobalt(III) chromate, Co2(CrO4)3   Molar Mass =

A:

Q: A chloride of silicon contains 79.1 mass % Cl.   (a) What is the empirical formula of the chloride?…

A: Consider weight of compound = 100 gmMole of Cl = 71.9 / 35.453 = 2.23Mass of Si = 100-79.1 = 20.9…

Q: 1.00 mol/L of NaX (aq) contains 4.2% solute by mass, what is the atomic mass of X? What anion could…

A: Molarity = moles of solute/Volume of solution (L)Moles of solute = mass of Solute/molar mass of…

Q: How many moles of lithium hydroxide would be required to produce 86.5 g of Li,CO3 in the following…

A:

Q: Titanium occurs in the magnetic mineral ilmenite (FeTiO3), which is often found mixed up with sand.…

A: Ilmenite can be separated from sand with magnets

Q: A sample of nickel ore, which has nickel as the only metal present, is treated with an excessnof…

A: a) Please find below the balanced reaction Ni + H2SO4 ----> NiSO4 + H2

Q: TiCl4 (189.68 g/mol), a source of Ti metal, can be produced from titanium dioxide, carbon and…

A:

Q: Nitrogen monoxide and oxygen react to form nitrogen dioxide.Consider the mixture of NO and O2 shown…

A: Initial conditions: molecules of O2 present- 5 Molecules of NO present- 8 Balanced reaction: 2NO +…

Q: In a combination reaction, 1.62 g of lithium is mixed with 6.50 g of oxygen. (a) Which reactant is…

A: a) The balanced equation is, 4 Li(s)+O2(g)→2Li2O The number of moles of Lithium is Moles=1.62 g1 mol…

Q: Urea [(NH₂)₂CO] is prepared by reacting ammonia with carbon dioxide: In the reaction 849.2 g of NH3…

A:

Q: What is the theoretical yield of iron in the reaction of Fe2O3 + 3CO → 2Fe + 3CO2, if 180.1 g of…

A: The objective of this question is to calculate the theoretical yield of iron (Fe) in the given…

Q: The reaction of finely divided aluminum and iron(III) oxide, Fe2O3, is called the thermite reaction.…

A: Given,  Mass of Al = 500.0 g  Mass of Fe2O3 = 500.0 g  Mass of Fe produces = Actual yield of Fe =…

Q: In an experiment designed to produce calcium oxide by the chemical reaction: 2Ca + O2 → 2CaO…

A: Given reaction is,  2Ca + O2 → 2CaO Also Given is, 104.5 g of CaO was obtained out of a possible…

Q: The reaction of aluminium and chlorine is illustrated by the following chemical equation: 2 Al (s) +…

A:

Q: 892.1 grams of isomaltitol, C12H24O11, was combusted in a furnace completely in an excess oxygen.…

A: The yield of water can be calculated as:-

Q: 6) If you start with 389.4 g of Al½(SO3)3 and excess NaOH, and are able to isolate 212.4 g of…

A:

Q: The percent yield of this reaction is 65.0%. 2A1(s) +3 F2 (g) – 2AIF3 (s) Determine the mass, in…

A: We have to predict the actual yield.

Q: Balance the following chemical equation CB,H.(g) + O₂(g) - > CO₂(g) + H₂O(g)

A: Is an equation in which the number of atoms for each element in the reaction and the total charged…

Q: Aluminum carbide is a solid that reacts with water to form aluminum hydroxide and methane gas. The…

A: Aluminum carbide is a solid that reacts with water to form aluminum hydroxide and methane gas. The…

Q: A 0.732 g mixture of methane, CH4, and ethane, C2H6, is burned, yielding 2.063 g of CO2. What is the…

A: First, we need to understand the stoichiometry of the reactions. When methane (CH4) and ethane…

Q: The percent composition of an unknown substance is 46.43% C, 25.77% O, 18.05% N, and 9.74% H. What…

A:

Q: Hydrogen cyanide, HCN, is prepared from ammonia, air, and natural gas ( CH4) by the following…

A: The balance chemical reaction :  2NH3(g) + 3O2(g) + 2CH4(g) ---Pt---> 2HCN(g) + 6H2O(g)  Mass of…

Q: Balance the following equations:

A:

Q: Aluminum sulfide reacts with water to form aluminumhydroxide and hydrogen sulfide. (a) Write the…

A: a. The balanced chemical equation of the above process is as follows : Al2S3 + 6H2O ------------>…

Q: A sample of sodium carbonate, Na2CO3, weighs 40.0 g. Calculate the following quantities (a) ? mol…

A: The number of molecules or atoms present in the one mole of the substance is equal to the Avogadro…

Q: This question has multiple parts: The following equation represents the formation of water from…

A:

Q: Worksheet 2: The Mole and Chemical Quantities 1) What is the molar mass of ammonium sulfate? 2) a)…

A: Since you have asked multiple questions we will solve the first one for you.  If you want answer to…

Q: Q5) Determine the empirical formula of a compound that has (by mass) 85.7% carbon, 14.28% budr

A: We know that No of moles = mass / molar mass   For carbon - - > Moles of carbon = 85.7 g /…

Q: Fe3Br8 – an important source of potassium bromide is produced through the following two-stage…

A: The two-stage reaction for the formation of Fe3Br8 is: Stage 1: 3 Fe + 3 Br2 → 3 FeBr2  Stage 2: 3…

Q: After 180.0 g of zinc was dropped into a beaker of hydrochloric acid and the reaction ceased, 27.6 g…

A: First Calculate mole of Zn by dividing Molar mass to the mass. Then use Mole-mole realtionship.

Q: In a lab experiment, 7.97 g of phosphorus reacts with bromine to form 69.65 g of phosphorus…

A: When mole fraction of element is multiply by 100 we obtained percentage by mass .

Q: (c) An organic compound consists of carbon, hydrogen and sulfur only. The percentage of carbon by…

A: We have to find empirical formula for given compound

Q: Given the following reaction equation: CH4 (g) + O2(g) → CO2 (g) + H2O (l) a)Balance this reaction…

A:

Q: (c) An organic compound consists of carbon, hydrogen and sulfur only. The percentage of carbon by…

A:

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".