(A) The combustion reaction is $CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O$ with $\Delta H = -891 \ kJ/mol$.This means $1 \ mol$ of $CH_4$ $(16 \ g)$ releas

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(A) The combustion reaction is $CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O$ with $\Delta H = -891 \ kJ/mol$.This means $1 \ mol$ of $CH_4$ $(16 \ g)$ releases $891 \ kJ$ of heat.To release $445 \ kJ$ of heat,the amount of $CH_4$ required is:$n = \frac{445 \ kJ}{891 \ kJ/mol} \approx 0.5 \ mol$.The mass of $CH_4$ required is $0.5 \ mol \times 16 \ g/mol = 8 \ g$.

Class 11 Chemistry Some Basic Concepts of Chemistry Chemical stoichiometry

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The heat of combustion of methane is given by the following equation. How many grams of methane are required to produce $445 \ kJ$ of heat (in $g$)?
$CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O \ (\Delta H = -891 \ kJ/mol)$

A
$8$
B
$10$
C
$12$
D
$22$

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Some Basic Concepts of Chemistry

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Chemical stoichiometry

The concentrated sulphuric acid that is peddled commercially is $95\%\, H_2SO_4$ by weight. If the density of this commercial acid is $1.834\, g\, cm^{-3},$ the molarity of this solution is ........... $M$.

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Combustion of glucose $(C_6H_{12}O_6)$ produces $CO_2$ and water. The amount of oxygen (in $g$) required for the complete combustion of $900 \ g$ of glucose is:
[Molar mass of glucose in $g \ mol^{-1} = 180$]

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The weight of a residue obtained by heating $2.76 \, g$ of silver carbonate is......$g$

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$0.5 \ M$ of $H_2SO_4$ is diluted from $1 \ L$ to $10 \ L$,the normality of the resulting solution is ......... $N$.

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Given that $N_{2(g)} + 3 H_{2(g)} \longrightarrow 2 NH_{3(g)}$; $\Delta_r H^{\circ} = -92 \ kJ$,the standard molar enthalpy of formation in $kJ \ mol^{-1}$ of $NH_{3(g)}$ is

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The heat of combustion of methane is given by the following equation. How many grams of methane are required to produce $445 \ kJ$ of heat (in $g$)?$CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O \ (\Delta H = -891 \ kJ/mol)$

Similar Questions

The concentrated sulphuric acid that is peddled commercially is $95\%\, H_2SO_4$ by weight. If the density of this commercial acid is $1.834\, g\, cm^{-3},$ the molarity of this solution is ........... $M$.

Combustion of glucose $(C_6H_{12}O_6)$ produces $CO_2$ and water. The amount of oxygen (in $g$) required for the complete combustion of $900 \ g$ of glucose is:[Molar mass of glucose in $g \ mol^{-1} = 180$]

The weight of a residue obtained by heating $2.76 \, g$ of silver carbonate is......$g$

$0.5 \ M$ of $H_2SO_4$ is diluted from $1 \ L$ to $10 \ L$,the normality of the resulting solution is ......... $N$.

Given that $N_{2(g)} + 3 H_{2(g)} \longrightarrow 2 NH_{3(g)}$; $\Delta_r H^{\circ} = -92 \ kJ$,the standard molar enthalpy of formation in $kJ \ mol^{-1}$ of $NH_{3(g)}$ is

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The heat of combustion of methane is given by the following equation. How many grams of methane are required to produce $445 \ kJ$ of heat (in $g$)?
$CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O \ (\Delta H = -891 \ kJ/mol)$

Combustion of glucose $(C_6H_{12}O_6)$ produces $CO_2$ and water. The amount of oxygen (in $g$) required for the complete combustion of $900 \ g$ of glucose is:
[Molar mass of glucose in $g \ mol^{-1} = 180$]