Chemistry, 28.12.2019 02:31 itsme123427
Determine the heat of reaction (δhrxn) for the reduction of acetaldehyde (ch3cho) to ethanol (c2h5oh) by using heat of formation data:
Answers: 1
![\Delta H_{rxn}=\sum [n\times \Delta H^o_f_{(product)}]-\sum [n\times \Delta H^o_f_{(reactant)}]](/tpl/images/0435/2456/defda.png)
![\Delta H_{rxn}=[(1\times \Delta H^o_f_{(CH_3CH_2OH(l))})]-[(1\times \Delta H^o_f_{(CH_3CHO(g))})+(1\times \Delta H^o_f_{(H_2(g))})]](/tpl/images/0435/2456/888de.png)
![\Delta H_{rxn}=[(1\times (-277.6))]-[(1\times (-166))+(1\times (0))]\\\\\Delta H_{rxn}=-111.6kJ](/tpl/images/0435/2456/21048.png)
Another question on Chemistry
Chemistry, 22.06.2019 10:50
An atom of lithium-7 has an equal number of(1) electrons and neutrons(2) electrons and protons(3) positrons and neutrons(4) positrons and protons
Answers: 2
Chemistry, 22.06.2019 12:10
Consider the reaction: n2(g) + o2(g) ⇄ 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?
Answers: 3
Chemistry, 22.06.2019 14:30
100 grams of molten lead (600°c) is used to make musket balls. if the lead shot is allowed to cool to room temperature (21°c), what is the change in entropy (in j/k) of the lead? (for the specific heat of molten and solid lead use 1.29 j/g⋅°c; the latent heat of fusion and the melting point of lead are 2.45 × 104 j/kg and 327°c, respectively.)
Answers: 1
You know the right answer?
Determine the heat of reaction (δhrxn) for the reduction of acetaldehyde (ch3cho) to ethanol (c2h5oh...
Questions
Mathematics, 02.03.2020 16:44
