Concept explainers
(a)
Interpretation: The balanced equation for the reaction of glucose with oxygen gas producing gaseous carbon dioxide and water vapour is to be stated.
Concept introduction: The species on left side of any chemical equation are reacting species and that of right side are product species. The basic condition for balanced equation is that atoms of every element present on two reaction sides must be equal. In order to satisfy this condition, some numerical values are added to balance the respective atoms of different elements.
(b)
Interpretation: The balanced equation for the reaction of solid iron (III) sulfide with hydrogen chloride forming solid iron (III) chloride and hydrogen sulfide gas is to be stated.
Concept introduction: The species on left side of any chemical equation are reacting species and that of right side are product species. The basic condition for balanced equation is that atoms of every element present on two reaction sides must be equal. In order to satisfy this condition, some numerical values are added to balance the respective atoms of different elements.
(c)
Interpretation: The balanced equation for the reaction of carbon disulfide liquid with ammonia gas producing hydrogen sulfide gas and solid ammonium thiocyanate is to be stated.
Concept introduction: The species on left side of any chemical equation are reacting species and that of right side are product species. The basic condition for balanced equation is that atoms of every element present on two reaction sides must be equal. In order to satisfy this condition, some numerical values are added to balance the respective atoms of different elements.
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Chemical Principles
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- 3.92 Many chemical reactions take place in the catalytic con- verter of a car. In one of these reactions, nitric oxide (NO) reacts with ammonia (NH3) to give nitrogen (N2) and water. Write a balanced equation for this reaction.arrow_forwardBacterial digestion is an economical method of sewage treatment. The reaction is an intermediate step in the conversion of the nitrogen in organic compounds into nitrate ions. What mass of bacterial tissue is produced in a treatment plant for every 1.0 104 kg of wastewater containing 3.0% NH4+ ions by mass? Assume that 95% of the ammonium ions are consumed by the bacteria.arrow_forward4.106 An ore sample with a mass of 670 kg contains 27.7% magnesium carbonate, MgCO3. If all of the magnesium carbonate in this ore sample is decomposed to form carbon dioxide, describe how to determine what mass of CO2 is evolved during the process.arrow_forward
- 3.14 A number of compounds are used in cement, and reactions among them occur when water is added. In one, CaO reacts with Al2O3 and water to form Ca3Al2(OH)12. Write a bal- anced chemical equation for this process.arrow_forward4.28 One of the steps in the manufacture of nitric acid is the oxidation of ammonia shown in this equation: 4NH3(g)+5O2(g)4NO(g)+6H2O(g) If 43.0 kg of NH3 reacts with 35.4 kg of O2, what mass of NO forms?arrow_forwardWhen organic compounds containing sulfur are burned, sulfurdioxide is produced. The amount of SO2 formed can be determined by the reaction with hydrogen peroxide: H2O2(aq)+SO2(g)H2SO4(aq) The resulting sulfuric acid is then titrated with a standard NaOH solution. A 1.302-g sample of coal is burned and the SO2 is collected in a solution of hydrogen peroxide. It took 28.44 mL of a 0.1000-M NaOH solution to titrate the resulting sulfuric acid. Calculate the mass percent of sulfur in the coal sample. Sulfuric acid has two acidic hydrogens.arrow_forward
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