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ale4655 [162]
2 years ago
12

How much heat is absorbed if a 30.0 gram sample of carbon is heated from 10.5 degrees Celsius to 22.2 degrees celsius

Chemistry
1 answer:
Vadim26 [7]2 years ago
3 0

Answer:

A lot of heat

Explanation:

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the Temperature of a sample of an ideal gas in a sealed 5.0 l container is raised from 27 oC to 77oC. If the initial pressure of
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Answer:
              The pressure increases to 3.5 atm.

Solution:
                According to Gay-Lussac's Law, " At constant volume and mass the pressure of gas is directly proportional to the applied temperature".

For initial and final states of a gas the equation is,

                                           P₁ / T₁  =  P₂ / T₂
Solving for P₂,
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Data Given;
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Putting values in eq. 1,

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                                           P₂  =  3.5 atm
7 0
3 years ago
How many moles of chlorine are used up in a reaction that produces 0.35kg of BCl3
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4.48 mol Cl2. A reaction that produces 0.35 kg of BCl3 will use 4.48 mol of Cl2.

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Moles of BCl3 = 350 g BCl3 x (1 mol BCl3/117.16 g BCl3) = 2.987 mol BCl3

(c) Use the <em>molar ratio</em> of Cl2:BCl3 to calculate the moles of Cl2.

Moles of Cl2 = 2.987 mol BCl3 x (3 mol Cl2/2 mol BCl3) = 4.48 mol Cl2

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