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Hitman42 [59]
3 years ago
15

Study the ions that contain the element chlorine. What are some similarities between the formulas for these ions?

Chemistry
1 answer:
castortr0y [4]3 years ago
4 0

Answer:

A. They all contain oxygen

B. They all have a charge of 1-

Explanation:

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I think it is 4.54 x 10-12
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When 0.5141 g of biphenyl (C12H10) undergoes combustion in a bomb calorimeter, the temperature rises from 25.823 °C to 29.419 °C
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Answer:

\Delta_{r}U of the reaction is -6313 kJ/mol

\Delta_{r}H of the reaction is -6312 kJ/mol

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Temperature\,\,change= \Delta U = 29.419-25.823 =3.506^{o}C

q_{cal}= C \times \Delta T

=5.861 \times 3.596 = 21.076\,kJ

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The chemical reaction in bomb calorimeter  is as follows.

C_{12}H_{10}(s)+\frac{27}{2}O_{2}(g)\rightarrow 12CO_{2}(g)+5H_{2}O(g)

Number\,of\,moles\Delta n=(12+5)-\frac{27}{2}=3.5

\Delta_{r}H=\Delta E+ \Delta n. RT

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Therefore, \Delta_{r}H of the reaction is -6312 kJ/mol.

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a molecule of two nitrogen atoms and four oxygen atoms what is the molecule formula for this compound
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Chemical equations consist of the chemical formulas of the reactants on the right
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False. Chemical products are on the right side.
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