Consider the reaction Al2(CO3)3 + 6 HCl  3 CO2 + 3 H2O + 2 AlCl3. %Al analysis was performed by decomposing 1.3922 grams of Al2(CO3)3 with HCl. The decomposing carbon dioxide (MW = 60.0 g), which was collected on calcium oxide, was determined to weigh 1.7696 grams. What is the aluminum (AW = 26.98 g/mol) content in the sample in percentage?

Q: The setting of Portland cement (used in sidewalks, for example) by reacting with water involves…

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Q: The calcium content in a 0.4367-g sample of phosphate rock was determined by first dissolving the…

A: Here we have to determine mass percentage of calcium present in 0.4367 gram phosphate rock  if all…

Q: A 7.83-g geological sample, containing the mineral Boulangerite (Pb5Sb4S11) as the only lead-bearing…

A: Mass percentage or percentage by mass : It is the mass of one component(in the substance) in grams…

Q: A sample of ultrapure silicon was reacted with excess oxidizing yielding SiO₂. After proper…

A: Given that -  Mass of Silicon dioxide SiO2 =  3.1754 g  Percentage of ultrapure silicon = 99.98%…

Q: 6. If you dissolved 5.0 g of nickel (II) chloride hexahydrate in 20 mL of 2.0 M…

A: limiting reactant is totally consumed during reaction and limiting reactant leads to tell the amount…

Q: An iron ore was analyzed by dissolving a 1.957-g sample in concentrated HCl. The resulting solution…

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Q: Copper metal reacts with dilute (10 M) nitric acid by the following reaction. 3Cu(s) + 8HNO3(aq) à…

A: a). Copper does not dissolve in HCl because hydrogen can donate its electron more readily than…

Q: Write the balanced NET ionic equation for the reaction when aqueous BaCl and aqueous (NHa)2SOa are…

A: Balanced molecular equation for aqueous BaCl2 and aqueous (NH4)2SO4 to give aqueous NH4Cl and solid…

Q: Consider the precipitation reaction that takes place when a water solution of aluminum nitrate,…

A: On reacting above two aluminium phosphate precipitate and potassium nitrate form as side product.

Q: To a crucible and cover weighing 33.392 g is added a sample of a copper (II) chloride hydrate (CuCl2…

A: Given data, Mass of crucible + cover = 33.392g Mass of crucible + cover + sample = 34.405g Mass of…

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: When iron (II) hydroxide is mixed with phosphoric acid, iron (II) phosphate precipitate results.…

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Q: A chemist dissolves a 1.497-g sample of a type of metal (an alloy of Sn, Pb, Sb, and Cu) in nitric…

A: Reaction: Sn + 2HNO3 → H2SnO3 + 2NO3 mass of tin = 0.4909 g molar mass of tin oxide  = 150.69 g/mol…

Q: A powder contains FeSO4·7H2O (molar mass = 278.01 g/mol) among other components. A 3.200-g sample of…

A: Answer:The question is based on the concept of gravimetric analysis and Stoichiometric Calculations.…

Q: What is the concentration (in Molarity units) of [Cu2+] in a solution that was prepared by weighing…

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Q: The goal of the first part of the experiment is to determine the value of n in the formula for…

A: Answer:This question is based on stoichiometric calculation where we have to establish the relation…

Q: A 249.3-g sample of ground water is analyzed for calcium. The Ca2+ in the sample is first…

A: Given the mass of groundwater sample taken for analysis = 249.3 g  mass of Ca2P2O7 precipitate…

Q: Caustic soda, NaOH, can be prepared commercially by the reaction of Na 2CO 3 with slaked lime,…

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

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Q: Manganese commonly occurs in nature as a mineral. The extraction of manganese from the carbonite…

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Q: Balance the following reactions: A) Cs + Al(OH)3 → CsOH + Al B) Pb(NO3)2 +…

A: The chemical equations are as follows --- (A)   Cs    +   Al(OH)3     →    CsOH    +    Al (B)…

Q: When aqueous ammonium carbonate, (NH4)2CO3, is treated with potassium hydroxide, KOH, the products…

A: This problem is based on inorganic chemistry.Here, we have to write down the net ionic equation .So,…

Q: A 6.586-g sample containing magnesium chloride and sodium chloride was dissolved in sufficient water…

A: Mass of sample = 6.586 g Mass of sample solution = 500 mL Mass of AgCl formed from 50 mL solution =…

Q: Manganese commonly occurs in nature as a mineral. The extraction of manganese from the carbonite…

A: First reaction ; 2MnCO3(s) + O2(g)-->2MnO2 (s) + 2CO2(g)  Second reaction;  3MnO2(s)+4Al(s)…

Q: A     student     carried     out     the     reaction     below     starting     with     1.993…

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Q: A 0.8761 g sample of iron ore is dissolved in acid, the iron is oxidized to the +3 state and then…

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Q: A powder contains FeSO4·7H2O (molar mass = 278.01 g/mol) among other components. A 2.750-g sample of…

A: To find the mass of FeSO4·7H2O in the 2.750 g sample, we'll need to follow these steps:Calculate the…

Q: Consider the series of reactions to synthesize the alum (KAl(SO4 )2 · xH2O(s)). If you start the…

A: The limiting reagent in a chemical reaction is a reactant that is present in smaller quantity and…

Q: 018302 001608 3. (part a). You are given 0.104 g of a sample of KwFex(C204)y(H₂O) z. In the…

A: Reaction is; 5C2O42-  + 2MnO4- +16H+ --->  10CO2 + 2Mn2+ + 8H2O

Q: Antimony is alloyed with lead to increase the rigidity of components used in the construction of…

A: The mass of the Pb-Sb alloy = 1.304 g. The molar mass of Sb, (MSb) = 121.76 g/mol. The molar mass of…

Q: An iron ore was analyzed by dissolving a 2.9912-g sample in concentrated HCl. The resulting solution…

A: The mass of the pure Fe2O3 is given as 159.69 g/mol The atomic mass of Iron is 55.847 g/mol The…

Q: A 290.3-g sample of ground water is analyzed for calcium. The Ca2+ in the sample is first…

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Q: A 0.8571 g sample of iron ore is dissolved in acid, the iron is oxidized to the +3 state and then…

A: The mass of the iron ore sample is = 0.8571 g The mass of iron(III) oxide is = 0.1132 g The molar…

Q: Ca(OH)2(9) + NH,Cls) → CaCl2(4) + NH38) + H2O1) (Reaction is not balanced) If a mixture containing…

A: Ca(OH)2       +      2 NH4Cl               ---->       2 NH3…

Q: A 244.5-g sample of ground water is analyzed for calcium. The Ca2+ in the sample is first…

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".