To show the net result is the decomposition of water Concept Introduction: Heat energy required to raise the temperature of 1g of substance by 1K.Energy gained or lost can be calculated using the below equation. q=C×m×ΔT Where, q= energy gained or lost for a given mass of substance (m), C =specific heat capacity, Δ T = change in temperature. The standard molar enthalpy of formation is the enthalpy change Δ f H 0 is the enthalpy change for the formation of 1mol of a compound directly from its component elements in their standard states. And is given by Δ r H 0 ΣnΔ f H 0 (products) - ΣnΔ f H 0 (reactants)
To show the net result is the decomposition of water Concept Introduction: Heat energy required to raise the temperature of 1g of substance by 1K.Energy gained or lost can be calculated using the below equation. q=C×m×ΔT Where, q= energy gained or lost for a given mass of substance (m), C =specific heat capacity, Δ T = change in temperature. The standard molar enthalpy of formation is the enthalpy change Δ f H 0 is the enthalpy change for the formation of 1mol of a compound directly from its component elements in their standard states. And is given by Δ r H 0 ΣnΔ f H 0 (products) - ΣnΔ f H 0 (reactants)
To show the net result is the decomposition of water
Concept Introduction:
Heat energy required to raise the temperature of 1g of substance by 1K.Energy gained or lost can be calculated using the below equation.
q=C×m×ΔT
Where, q= energy gained or lost for a given mass of substance (m), C =specific heat capacity, ΔT= change in temperature.
The standard molar enthalpy of formation is the enthalpy change ΔfH0 is the enthalpy change for the formation of 1mol of a compound directly from its component elements in their standard states. And is given by
ΔrH0ΣnΔfH0(products)-ΣnΔfH0(reactants)
(a)
Expert Solution
Explanation of Solution
To show the net result is the decomposition of water.
Equation 1-2=A
A=CaBr2+H2O+Hg→CaO+HgBr2+H2
Equation A-3=B
H2O+Hg→HgO+H2
Equation 4-B is the required equation.
H2O→H2+1/2O2
(b)
Interpretation Introduction
Interpretation:
If 1000Kg of water is used then identify the mass of H2 produced
Concept Introduction:
Heat energy required to raise the temperature of 1g of substance by 1K.Energy gained or lost can be calculated using the below equation.
q=C×m×ΔT
Where, q= energy gained or lost for a given mass of substance (m), C =specific heat capacity,ΔT= change in temperature.
The standard molar enthalpy of formation is the enthalpy change ΔfH0 is the enthalpy change for the formation of 1mol of a compound directly from its component elements in their standard states. And is given by
ΔrH0ΣnΔfH0(products)-ΣnΔfH0(reactants)
(b)
Expert Solution
Explanation of Solution
The mass of H2 produced
ΔrH0ΣnΔfH0(products)-ΣnΔfH0(reactants)
ΔrH0=0-(-285.8kJ/mol) =285.8kJ/mol
Substitute the values in, q=C×m×ΔT, as
q=-285.8kJ/mol×1000Kg= 28kJ
28kJ×1molH2285.8kJ×1000Kg1mol =97.97Kg
The reaction is H2O→1/2O2+H2
(c)
Interpretation Introduction
Interpretation:
The enthalpy of reaction has to be calculated.
Concept Introduction:
Heat energy required to raise the temperature of 1g of substance by 1K.Energy gained or lost can be calculated using the below equation.
q=C×m×ΔT
Where, q= energy gained or lost for a given mass of substance (m), C =specific heat capacity,ΔT= change in temperature.
The standard molar enthalpy of formation is the enthalpy change ΔfH0 is the enthalpy change for the formation of 1mol of a compound directly from its component elements in their standard states. And is given by
ΔrH0ΣnΔfH0(products)-ΣnΔfH0(reactants)
(c)
Expert Solution
Explanation of Solution
Given reaction is:
CaBr2+H2O+Hg→CaO+HgBr2+H2
Substitute the values in ΔrH0ΣnΔfH0(products)-ΣnΔfH0(reactants) as,
Substitute the values in ΔrH0ΣnΔfH0(products)-ΣnΔfH0(reactants) as,
ΔrH0=(-90.7kJ/mol)-(-285.8kJ/mol) =195.1kJ/mol
H2O→H2+1/2O2
ΔrH0=285.8kJ/mol
(d)
Interpretation Introduction
Interpretation:
Comment on the feasibility of using such a series of reaction to produce H2
Concept Introduction:
Heat energy required to raise the temperature of 1g of substance by 1K.Energy gained or lost can be calculated using the below equation.
q=C×m×ΔT
Where, q= energy gained or lost for a given mass of substance (m), C =specific heat capacity,ΔT= change in temperature.
The standard molar enthalpy of formation is the enthalpy change ΔfH0 is the enthalpy change for the formation of 1mol a compound directly from its component elements in their standard states. And is given by
ΔrH0ΣnΔfH0(products)-ΣnΔfH0(reactants)
(d)
Expert Solution
Explanation of Solution
Since the enthalpy is positive the reaction is not feasible
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Write the balanced molecular chemical equation for the reaction in aqueous solution for
mercury(I) nitrate and chromium(VI) sulfate. If no reaction occurs, simply write only NR. Be
sure to include the proper phases for all species within the reaction.
3 Hg(NO3)2(aq) + Cг2(SO4)3(aq) → 3 Hg₂SO (s) + 2 Cr(NO3), (aq)
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Deducing the reactants of a Diels-Alder reaction
n the molecule on the right-hand side of this organic reaction be made in good yield from no more than two reactants, in one
step, by moderately heating the reactants?
?
Δ
• If your answer is yes, then draw the reactant or reactants in the drawing area below. You can draw the reactants in any
arrangement you like.
• If your answer is no, check the box under the drawing area instead.
Explanation Check
Click and drag to start drawing a structure.
>
Predict the major products of the following organic reaction:
+
Some important notes:
A
?
• Draw the major product, or products, of the reaction in the drawing area below.
• If there aren't any products, because no reaction will take place, check the box below the drawing area instead.
• Be sure to use wedge and dash bonds when necessary, for example to distinguish between major products that are
enantiomers.
Explanation
Check
Click and drag to start drawing a structure.
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