Concept explainers
(a)
Interpretation:
The balanced equation for the synthesis of hydrogen using Zn as the starting material should be written.
Concept introduction:
Hydrogen can be produced by reacting metals with acids like Sulphuric and Hydrochloric acids.
(b)
Interpretation:
The balanced equation for the synthesis of hydrogen using C as the starting material should be written.
Concept introduction:
Carbon can be reacted with water to free hydrogen from the water molecules.
(c)
Interpretation:
The balanced equation for the synthesis of hydrogen using CH4 as the starting material should be written.
Concept introduction:
Hydrogen gas is produced using methane by the steam reforming method.
(d)
Interpretation:
The balanced equation for the synthesis of hydrogen using
Concept introduction:
Hydrogen gas can be produced using the
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LCPO CHEMISTRY W/MODIFIED MASTERING
- Consider the series of reactions to synthesize the alum (KAl(SO4 )2 · xH2O(s)) from the introduction. (a) Assuming an excess of the other reagents, from one mole of aluminum Al (s), how many moles of alum will be produced? (b) Assuming an excess of the other reagents, from one mole of potassium hydroxide KOH, how many moles of alum will be produced? (c) Assuming an excess of the other reagents, from one mole of sulfuric acid H2SO4 , how many moles of alum will be produced? (d) If you start the synthesis with 1.00 g of Al, 40.0 mL of 1.50 M KOH, and 20.0 mL of 9.00 M H2SO4 , which of the three will be the limiting reagent? (e) Assuming that the product is anhydrous (that there are no waters of hydration), calculate the theoretical yield of alum, in grams, based on the amounts of reagents in part (d). 3. Consider the nickel salt: (NH4 )2Ni(SO4 )2 ·y H2O (Ammonium Nickel Sulfate Hydrate), where y is the number of coordinated waters. (a) Assuming that the product is anhydrous (y = 0),…arrow_forwardName the products formed in each case when(a) hydrochloric acid reacts with caustic soda.(b) granulated zinc reacts with caustic soda.(c) carbon dioxide is passed into lime water.arrow_forwardPhosphoric acid, one of the acids used in some cola drinks, is produced by the reaction of phosphorus(V) oxide, an acidic oxide, with water. Phosphorus(V) oxide is prepared by the combustion of phosphorus.(a) Write the empirical formula of phosphorus(V) oxide.(b) What is the molecular formula of phosphorus(V) oxide if the molar mass is about 280.(c) Write balanced equations for the production of phosphorus(V) oxide and phosphoric acid.(d) Determine the mass of phosphorus required to make 1.00 × 104 kg of phosphoric acid, assuming a yield of 98.85%.arrow_forward
- Heptacarbon octahydride is an effective gasoline additive. In the presence of oxygen gas (and a spark), it undergoes complete combustion. (c) Calculate the mass of oxygen gas necessary to produce a theoretical yield of 1.00 lb of carbon dioxide.arrow_forwardAluminum hydroxide reacts with phosphoric acid to give AlPO4. The substance is usedindustrially in adhesives, binders, and cements.(a) Write the balanced equation for the preparation of AlPO4from aluminumhydroxide and phosphoric acid.(b) If you begin with 152 g of aluminum hydroxide and 3.00 L of 0.750 Mphosphoric acid, what is the theoretical yield of AlPO4?(c) If you place 25.0 g of AlPO4in 1.00 L of water, what are the concentrations ofAl3+ and PO43− at equilibrium? (Neglect hydrolysis of aqueous Al3+ and PO43−ions.) Kspfor AlPO4is 1.3 × l0−20.(d) Does the solubility of AlPO4increase or decrease on adding HCl? Explain.arrow_forwardThe following reactions are all similar to those of the industrial chemicals. Complete and balance the equations for these reactions: (a) reaction of a weak base and a strong acid NH3 + HClO4 ⟶ (b) preparation of a soluble silver salt for silver plating Ag2CO3 + HNO3 ⟶ (c) preparation of strontium hydroxide by electrolysis of a solution of strontium chloride SrCl2 (aq) + H2 O(l) ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯→arrow_forward
- Solid boron can be extracted from solid boron oxide by reac- tion with magnesium metal at a high temperature. A second prod- uct is solid magnesium oxide. (a) Write a balanced equation for the reaction. (b) What mass of boron can be produced when 125 kg of boron oxide is heated with 125 kg of magnesium?arrow_forwardConsider the series of reactions to synthesize the alum (KAl(SO4 )2 · xH2O(s)). ) Assuming an excess of the other reagents, from one mole of sulfuric acid H2SO4 , how many moles of alum will be produced?arrow_forwardWrite chemical equations for each of the following chemical and physical processes: (a) Neutralization of an aqueous solution of barium hydroxide by the hydronium ion (b) Reaction of 1 mole of aluminum with I2(s) to form aluminum iodide (c) Conversion of 1 mole of O2(g) to O3(g)arrow_forward
- A sample of 70.5 mg of potassium phosphate is added to 15.0 mL of 0.050 M silver nitrate, resulting in the formation of aprecipitate. (a) Write the molecular equation for the reaction. (b) What is the limiting reactant in the reaction? (c) Calculatethe theoretical yield, in grams, of the precipitate that forms.arrow_forward(a) What compound precipitates when aqueous solutions of Fe2(SO4)3 and LiOH are mixed? (b) Write a balanced equation for the reaction.arrow_forwardWrite a balanced chemical equation for the reaction of an excess of oxygen with each of the following. Remember that oxygen is a strong oxidizing agent and tends to oxidize an element to its maximum oxidation state.(a) Mg(b) Rb(c) Ga(d) C2H2(e) COarrow_forward
- General Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning