The reactant present in excess when 1.62 g of lithium is mixed with 6.50 g of oxygen is to be identified. Concept introduction: The redox reaction can be classified into three types depending upon the number of reactants and products as follows: 1. Combination redox reaction 2. Decomposition redox reaction 3. Displacement redox reactions Combination redox reactions are the reactions in which two or more reactants combine to form a single product. In displacement redox reactions, substances on both sides of the equation remain the same but the atoms exchange places in order to form the product while in decomposition reaction, one compound decompose to form one or more product. A limiting reagent is the one that is completely consumed in a chemical reaction . The amount of product formed in any chemical reaction has to be in accordance with the limiting reagent of the reaction. The amount of product depends on the amount of limiting reagent since the product formation is not possible in the absence of it.
The reactant present in excess when 1.62 g of lithium is mixed with 6.50 g of oxygen is to be identified. Concept introduction: The redox reaction can be classified into three types depending upon the number of reactants and products as follows: 1. Combination redox reaction 2. Decomposition redox reaction 3. Displacement redox reactions Combination redox reactions are the reactions in which two or more reactants combine to form a single product. In displacement redox reactions, substances on both sides of the equation remain the same but the atoms exchange places in order to form the product while in decomposition reaction, one compound decompose to form one or more product. A limiting reagent is the one that is completely consumed in a chemical reaction . The amount of product formed in any chemical reaction has to be in accordance with the limiting reagent of the reaction. The amount of product depends on the amount of limiting reagent since the product formation is not possible in the absence of it.
Definition Definition Chemical reactions involving both oxidation and reduction processes. During a redox reaction, electron transfer takes place in such a way that one chemical compound gets reduced and the other gets oxidized.
Chapter 4, Problem 4.115P
(a)
Interpretation Introduction
Interpretation:
The reactant present in excess when 1.62 g of lithium is mixed with 6.50 g of oxygen is to be identified.
Concept introduction:
The redox reaction can be classified into three types depending upon the number of reactants and products as follows:
1. Combination redox reaction
2. Decomposition redox reaction
3. Displacement redox reactions
Combination redox reactions are the reactions in which two or more reactants combine to form a single product. In displacement redox reactions, substances on both sides of the equation remain the same but the atoms exchange places in order to form the product while in decomposition reaction, one compound decompose to form one or more product.
A limiting reagent is the one that is completely consumed in a chemical reaction. The amount of product formed in any chemical reaction has to be in accordance with the limiting reagent of the reaction. The amount of product depends on the amount of limiting reagent since the product formation is not possible in the absence of it.
(b)
Interpretation Introduction
Interpretation:
The moles of product formed when 1.62 g of lithium is mixed with 6.50 g of oxygen is to be calculated.
Concept introduction:
The redox reaction can be classified into three types depending upon the number of reactants and products as follows:
1. Combination redox reaction
2. Decomposition redox reaction
3. Displacement redox reactions
Combination redox reactions are the reactions in which two or more reactants combine to form a single product. In displacement redox reactions, substances on both sides of the equation remain the same but the atoms exchange places in order to form the product while in decomposition reaction, one compound decompose to form one or more product.
A limiting reagent is the one that is completely consumed in a chemical reaction. The amount of product formed in any chemical reaction has to be in accordance with the limiting reagent of the reaction. The amount of product depends on the amount of limiting reagent since the product formation is not possible in the absence of it.
(c)
Interpretation Introduction
Interpretation:
The mass of each reactant and product after the reaction is to be calculated.
Concept introduction:
The redox reaction can be classified into three types depending upon the number of reactants and products as follows:
1. Combination redox reaction
2. Decomposition redox reaction
3. Displacement redox reactions
Combination redox reactions are the reactions in which two or more reactants combine to form a single product. In displacement redox reactions, substances on both sides of the equation remain the same but the atoms exchange places in order to form the product while in decomposition reaction, one compound decompose to form one or more product.
A limiting reagent is the one that is completely consumed in a chemical reaction. The amount of product formed in any chemical reaction has to be in accordance with the limiting reagent of the reaction. The amount of product depends on the amount of limiting reagent since the product formation is not possible in the absence of it.
Draw the major product of the Claisen condensation reaction between two molecules of this ester. Ignore
inorganic byproducts.
Incorrect, 5 attempts remaining
1. NaOCH3/CH3OH
2. Acidic workup
Select to Draw
O
Incorrect, 5 attempts remaining
The total number of carbons in the parent chain is incorrect. Review the reaction conditions including starting materials and/or
intermediate structures and recount the number of carbon atoms in the parent chain of your structure.
OK
Using a cell of known pathlength b = 1.25115 x 10-3 cm, a water absorption spectrum was measured. The band at 1645 cm-1, assigned to the O-H bending, showed an absorbance, A, of 1.40.
a) Assuming that water density is 1.00 g/mL, calculate the water molar concentration c (hint: M= mole/L)
b) Calculate the molar absorptivity, a, of the 1645 cm-1 band
c) The transmitted light, I, can be written as I= Ioexp(-xb), where x is the absorption coefficient (sometimes designated as alpha), Io is the input light, and b is the cell pathlength. Prove that x= (ln10)*x*c
d) Calculate x for the 1645 cm-1 band
Convert 1.38 eV into wavelength (nm) and wavenumber (cm-1) (c = 2.998 x 108 m/s; h = 6.626 x 10-34 J*s).
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