Concept explainers
(a)
Interpretation:
The chemical equation for the reaction of chlorine gas with cold sodium hydroxide should be determined.
Concept introduction:
A chemical equation refers to the symbolic representation of a given
(b)
Interpretation:
The chemical equation for the reaction in which sodium iodide reacts with hot and concentrated solution of sulfuric acid should be determined.
Concept introduction:
A chemical equation refers to the symbolic representation of a given chemical reaction in the form of formulae and symbols where the product entities are present on the right hand side of the chemical equation while the reactant entities are present on the left hand side of the chemical equation.
(c)
Interpretation:
The chemical equation for the reaction where chlorine gas reacts with potassium triiodide solution should be determined.
Concept introduction:
A chemical equation refers to the symbolic representation of a given chemical reaction in the form of formulae and symbols where the product entities are present on the right hand side of the chemical equation while the reactant entities are present on the left hand side of the chemical equation.
(d)
Interpretation:
The chemical equation for the reaction in which sodium bromide reacts with hot aqueous solution of phosphoric acid should be determined.
Concept introduction:
A chemical equation refers to the symbolic representation of a given chemical reaction in the form of formulae and symbols where the product entities are present on the right hand side of the chemical equation while the reactant entities are present on the left hand side of the chemical equation.
(e)
Interpretation:
The chemical equation for the reaction of NaHSO3 with MnO4- (aq) in dilute sulfuric acid should be determined.
Concept introduction:
A chemical equation refers to the symbolic representation of a given chemical reaction in the form of formulae and symbols where the product entities are present on the righthand side of the chemical equation while the reactant entities are present on the left hand side of the chemical equation.
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General Chemistry: Principles and Modern Applications (11th Edition)
- Chlorine gas was first prepared in 1774 by C. W. Scheele by oxidizing sodium chloride with manganese(IV) oxide. The reaction is NaCl(aq)+H2SO4(aq)+MnO2(s)Na2SO4(aq)+MnCl2(aq)+H2O(l)+Cl2(g) Balance this equation.arrow_forwardA chemist dissolves a 1.497-g sample of a type of metal (an alloy of Sn, Pb, Sb, and Cu) in nitric acid, and metastannic acid, H2SnO3, is precipitated. She heats the precipitate to drive off the water, which leaves 0.4909 g of tin(IV) oxide. What was the percentage of [in in the original sample?arrow_forwardIt sodium peroxide is added to water, elemental oxygen gas is generated: :math>Na2O2(s)+H2O(l)NaOH(aq)+O2(g) ppose 3.25 g of sodium peroxide is added to a large excess of water. What mass of oxygen gas will be produced?arrow_forward
- Write balanced chemical equations for the following reactions: (a) zinc metal heated in a stream of oxygen gas (b) zinc carbonate heated until loss of mass stops (c) zinc carbonate added to a solution 0f acetic acid, CH3CO2H (d) zinc added to a solution of hydro-bromic acidarrow_forwardIodine can be prepared by allowing an aqueous solution of hydrogen iodide to react with manganese dioxide, MnO2. The reaction is 2I(aq)+4H+(aq)+MnO2(s)Mn2+(aq)+2H2O+I2(s) If an excess of hydrogen iodide is added to 0.200 g of MnO2, how many grams of iodine are obtained, assuming 100% yield?arrow_forwardWhen jump-starting a car with a dead battery, the ground jumper should be attached to a remote part of the engine block. Why?arrow_forward
- Sodium bicarbonate (baking soda), NaHCO3, can be purified by dissolving it in hot water (60 C), filtering to remove insoluble impurities, cooling to 0 C to precipitate solid NaHCO3, and then filtering to remove the solid, leaving soluble impurities in solution. Any NaHCO3 that remains in solution is not recovered. The solubility of NaHCO3 in hot water of 60 C is 164 g/L. Its solubility in cold water of 0 C is 69 g/L. What is the percent yield of NaHCO3 when ills purified by this method?arrow_forwardGold metal will not dissolve in either concentrated nitric acid or concentrated hydrochloric acid It will dissolve, however, in aqua regia, a mixture of the two concentrated acids. The products of the reaction are the AuCl4 ion and gaseous NO. Write a balanced equation for the dissolution of gold in aqua regia.arrow_forwardTen mL of concentrated H3PO4 (91.7% by mass, d=1.69g/mL) was accidentally poured into a beaker containing 20.0 g of NaOH. Not all the NaOH was consumed. How many grams of NaOH were left unreacted? The equation for the reaction is H3PO4(aq)+3OH(aq)3H2O+PO43(aq)arrow_forward
- A 2.5624-g sample of a pure solid alkali metal chloride is dissolved in water and treated with excess silver nitrate. The resulting precipitate, filtered and dried, weighs 3.03707 g. What was the percent by mass of chloride ion in the original compound? What is the identity of the salt?arrow_forward60. Suppose 325 in L of 0.150 M NaOH is needed for your experiment. How would you prepare this if all that is available is a 1.01 M NaOH solution?arrow_forward3.14 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_forward
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