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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CHEMISTRY-TEXT
- Phosphoric 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_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_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_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_forwardplease answerarrow_forward4arrow_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_forward(i) How is HNO3 prepared commercially?(ii) Write chemical equations of the reactions involved.(iii) What concentration by mass of HNO3 is obtained?arrow_forwardWhich of the following is NOT one of the uses of hydrogen gas? (A) Production of hydrazine (N2H4) (B) Production of ammonia (NH3) (C) Production of methanol (CH3OH) (D) Production of margarinearrow_forward
- Describe how to determine the oxidation number of sulfur in(a) H₂S and (b) SO₃²⁻.arrow_forwardMagnesium reacts with oxygen to form magnesium oxide according to the following reaction: 2 Mg + O2 2M9O (a) What is the oxidation state of magnesium in Mg? (b) What is the oxidation state of magnesium in MgO? (c) Which species is oxidized? (d) Which species is reduced? (e) Name the oxidizing agent.arrow_forwardResearchers isolated an unknown substance, X, from rabbit muscle. They determined its structure from the following observations and experiments. (a) Qualitative analysis showed that X was composed entirely of C, H, and O. A weighed sample of X was completely oxidized, and the H₂O and CO₂ produced were measured. This quantitative analysis revealed that X contained 40.00% C, 6.71% H, and 53.29% O by weight. (b) The molecular mass of X, as determined by mass spectrometry, was 90.00 atomic mass units (u). (c) Infrared spectroscopy showed that X contained one double bond. (d) X dissolved readily in water, and the solution demonstrated optical activity when tested in a polarimeter. (e) The aqueous solution of X is acidic. What is the empirical formula of X? CH₂Oarrow_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 Learning