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Liono4ka [1.6K]
2 years ago
6

An 80.0 g sample of a gas was heated from 25 °C to 225 °C. During this process, 346 J of work was done by the system and

Chemistry
1 answer:
harina [27]2 years ago
3 0

Answer:

C=0.596\frac{J}{g\°C}

Explanation:

Hello there!

In this case, according to the first law of thermodynamics it is possible to compute the gained heat by the water as shown below:

Q=\Delta U+W\\\\Q=9185J+346J=9531 J

Thus, it is possible to solve for the specific heat of the gas as shown below:

Q=mC\Delta T\\\\C=\frac{Q}{m\Delta T}=\frac{9531J}{80.0g*(225-25)\°C}\\\\C=0.596\frac{J}{g\°C}

Best regards!

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What intermolecular force(s) is/are present in solid SO3?
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Answer:

1. London dispersion

Explanation:

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The chemical compound SO₃ is planar in structure , the only intermolecular forces shown by SO₃ is the London forces .

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Hydrogen bonding is also not observed , because there is not hydrogen atom .

Hence , only London forces are observed in SO₃ .

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3 years ago
A chemist must dilute 34.3mL of 1.72mM aqueous calcium sulfate solution until the concentration falls to 1.00mM. He'll do this b
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Answer:

58.9mL

Explanation:

Given parameters:

Initial volume  = 34.3mL    = 0.0343dm³

Initial concentration  = 1.72mM   = 1.72 x 10⁻³moldm⁻³

Final concentration  = 1.00mM = 1 x 10⁻³ moldm⁻³

Unknown:

Final volume  =?

Solution:

Often times, the concentration of a standard solution may have to be diluted to a lower one by adding distilled water. To find the find the final volume, we must recognize that the number of moles of the substance in initial and final solutions are the same.

   Therefore;

              C₁V₁  =  C₂V₂

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        now input the variables;

                      1.72 x 10⁻³ x  0.0343 = 1 x 10⁻³  x V₂

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3 years ago
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Answer:

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