Concept explainers
(a)
Interpretation:
The products of the given reactions have to be identified.
Concept introduction:
Standard reduction potentials
It is the reduction potential of a chemical substance in standard conditions. The stronger the reducing character (negative reduction potential) they will be low in position compared to hydrogen in the
(b)
Interpretation:
The products of the given reactions have to be identified.
Concept introduction:
Standard reduction potentials
It is the reduction potential of a chemical substance in standard conditions. The stronger the reducing character (negative reduction potential) they will be low in position compared to hydrogen in the electrochemical series. The stronger the oxidizing character (positive reduction potential) they will be above to hydrogen.
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CHEMISTRY 4
- The reaction of calcium hydride, CaH2, with water can be characterized as a Lewis acid-base reaction: CaH2(s)+2H2O(l)Ca(OH)2(aq)+2H2(g) Identify the Lewis acid and the Lewis base among the reactants. The reaction is also an oxidation-reduction reaction. Identify the oxidizing agent, the reducing agent, and the changes in oxidation number that occur in the reaction.arrow_forwardComplete and balance the following equations. Write the entire equation, including the reactants and products, and include the physical state of each species. (Click in the answer box to activate the palette.) (a) K(s) + H2O(I) → (b) NaH(s) + H20(1) –arrow_forwardComplete and balance the following:(a) As(s) 1 excess O2(g)→(b) Bi(s) 1 excess F2(g) →(c) Ca3As2(s) 1 H2O(l) →arrow_forward
- Complete and balance the following acid-base equations:(a) A solution of HClO4 is added to a solution of LiOH.(b) Aqueous H2SO4 reacts with NaOH.(c) Ba(OH)2 reacts with HF gas.arrow_forwardConsider 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_forwardConsider the series of reactions to synthesize the alum (KAl(SO4 )2 · xH2O(s)) from the introduction. Assuming an excess of the other reagents, from one mole of potassium hydroxide KOH, how many moles of alum will be produced?arrow_forward
- What is the molecularity of the following reaction?CH4(g) + 2O2(g) → CO2(g) + 2H2O(g)arrow_forwardplease explain how to balance and predict the reaction: (CH2)2 (CH)4(L) + O(G)=?arrow_forwardThe molecular weight of sperm whale myoglobin is 17.8 kDa.17.8 kDa. The myoglobin content of sperm whale muscle is about 80 g · kg−1.80 g · kg−1. In contrast, the myoglobin content of some human muscles is about 8 g · kg−1.8 g · kg−1. Compare the amounts of O2O2 bound to myoglobin in human muscle and in sperm whale muscle. Assume that the myoglobin is saturated with O2,O2, and that the molecular weights of human and sperm whale myoglobin are the same. How much O2O2 is bound to myoglobin in human muscle? How much O2O2 is bound to myoglobin in whale muscle? The amount of oxygen dissolved in tissue water at 37°C37°C is about 3.5×10−5 M.3.5×10−5 M. What is the ratio of myoglobin‑bound oxygen to dissolved oxygen in the tissue water of sperm whale muscle?arrow_forward
- Complete and balance the following equations. If no reac-tion occurs, write NR:(a) H₃PO4(l)+ NaI(s) → (b) Cl₂(g)+ I(aq)→ (c) Br₂(l)+ Cl(aq) → (d)ClF(g) +F₂(g) →arrow_forwardConsider the reaction: CH 4( g) + 2O 2( g) → CO 2( g) + 2H 2O( g) Which of the following statements is correct? Oxygen is the reducing agent. The reaction is not an oxidation-reduction reaction. Oxygen is oxidized. Carbon is oxidized. Carbon is the oxidizing agent.arrow_forwardWhat is significant about the following reaction? 4As(s) + 3O2(g) → As4O6(s)arrow_forward
- Chemistry by OpenStax (2015-05-04)ChemistryISBN:9781938168390Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark BlaserPublisher:OpenStax