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3 years ago

6

Consider the lewis structures for the compound so3 and the polyatomic ions so32- and so42-. which of these must exist as a set o

f resonance structures?

1 answer:

luda_lava [24]3 years ago

6 0

It is a multiply question but your didn't include the choice in this question but the answer in this question is only so3 or s03 only. So3 is the only one that must exist as a set of resonance structures. So3 may be refer to a sulfur trioxide wich means a chemical compound of both trioxide and sulfur.

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Answer : The final temperature of the mixture is $61.4^oC$

Explanation :

In this problem we assumed that heat given by the hot body is equal to the heat taken by the cold body.

$q_1=-q_2$

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And as we know that,

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Thus, the formula becomes,

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where,

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$m_1$ = $m_2$ = mass of water = same

$\rho_1$ = $\rho_2$ = density of water = 1.0 g/mL

$V_1$ = volume of water at $80.0^oC$ = $370cm^3=370mL$

$V_2$ = volume of water at $4^oC$ = $120cm^3=120mL$

$T_f$ = final temperature of mixture = ?

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$T_2$ = initial temperature of water = $4^oC$

Now put all the given values in the above formula, we get:

$(\rho_1\times V_1)\times (T_f-T_1)=-(\rho_2\times V_2)\times (T_f-T_2)$

$(1.0g/mL\times 370mL)\times (T_f-80.0)^oC=-(1.0g/mL\times 120mL)\times (T_f-4)^oC$

$T_f=61.4^oC$

Therefore, the final temperature of the mixture is $61.4^oC$

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4 years ago

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erica [24]

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3 years ago