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2 years ago

Please help me with this question

Chemistry

1 answer:

Inessa05 [86]2 years ago

4 0

From the calculation, the concentration in parts per billion is 6 ppb.

The term ppb refers to the concentration of a substance in parts per billion. We obtain the ppb using the formula;

Mass of solute/ Mass of solution * 10^9

Now, 1L = 1000cm^3 = 1000 g

The concertation in ppb = 6 * 10^-6 g/1000 g * 10^9

= 6 ppb

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The amount of heat released by the sample has been 22.54 kJ. Thus, option C is correct.

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The specific heat has been expressed as:

$q=mc\Delta T$

<h3 /><h3>Computation for the heat absorbed</h3>

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$q_{released}=q_{absorbed}\\
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Substituting the values for heat released:

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