Question 8.4: CALCULATING A SPECIFIC HEAT What is the specific heat of sil...

CALCULATING A SPECIFIC HEAT

What is the specific heat of silicon if it takes 192 J to raise the temperature of 45.0 g of Si by 6.0 °C?

STRATEGY
To find a specific heat of a substance, calculate the amount of energy necessary to raise the temperature of 1 g of the substance by 1 °C.

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Question: 8.6

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CH_{4}(g) + O_{2}(g) → \cancel{CH_{2}O(...

Question: 8.10

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The reactants have four C—H bonds and three Cl—Cl ...

Question: 8.9

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The balanced equation is

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Question: 8.8

USING STANDARD HEATS OF FORMATION TO CALCULATE ΔH° Calculate in kilojoules for the synthesis of lime (CaO) from limestone (CaCO3), the key step in the manufacture of cement. CaCO3(s) → CaO(s) + CO2(g) ΔH°f [CaCO3(s)] = -1207.6 kJ/mol ΔH°f [CaO(s)] = -634.9 kJ/mol ΔH°f [CO2(g)] = -393.5 kJ/mol ...

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ΔH° =

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Question: 8.7

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C(s) + \cancel{O_{2}(g)} → \cancel{CO_{...

Question: 8.13

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The drawing shows ordered particles in a solid sub...

Question: 8.12

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At 25 °C (298 K), we have ΔG = ΔH - TΔS = 179.2 kJ...

Question: 8.11

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(a) The amount of molecular randomness in the syst...

Question: 8.5

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Specific heat = 4.18 J/(g · °C) Mass = (20.0 mL)[l...

Question: 8.3

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Verified Answer:

The molar mass of Al is 26.98 g/mol, so 5.00 g of ...