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PilotLPTM [1.2K]
3 years ago
5

I need help on which are elements, compounds, and mixtures.

Chemistry
1 answer:
Lapatulllka [165]3 years ago
8 0
Going from left to right
1. C
2.M
3.M
4.M
5.E
6.C
7.E
8.M
9.M
10.M
11.C
12.M
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Explanation:

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8 0
3 years ago
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3 years ago
Butane (C4 H10(g), mc031-1.jpgHf = –125.6 kJ/mol) reacts with oxygen to produce carbon dioxide (CO2 , mc031-2.jpgHf = –393.5 kJ/
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The balanced chemical equation for the combustion of butane is:

2C_{4}H_{10}(g) +13 O_{2}(g)-->8CO_{2}(g)+10H_{2}O(g)

ΔH_{reaction}^{0} = Σn_{products}ΔH_{f}^{0}_{(products)}-Σn_{reactants}ΔH_{f}^{0}_{(reactants)}

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Calculating the enthalpy of combustion per mole of butane:

1mol C_{4}H_{10}*( \frac{-5315kJ}{2mol C_{4}H_{10} })=-2657.5 \frac{kJ}{molC_{4}H_{10}}

Therefore the heat of combustion per one mole butane is -2657.5 kJ/mol

Correct answer: -2657.5 kJ/mol

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3 years ago
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My solution was .1M using c=mol/volume but is this correct? It seems to simple.
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3 years ago
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