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Sonja [21]
2 years ago
13

when performing solubility studies, why you should use deionized or distilled water rather than tap water?

Chemistry
1 answer:
Cerrena [4.2K]2 years ago
5 0

Answer:

The science project or the proposed test using the water as a control element in the experiment determines whether you choose to use deionized water or distilled water. Of the two, distilled water is the purest because the water undergoes boiling that kills off most organic contaminants.

Explanation:

HELP ME ON MINE PLZ

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How much heat, in joules, must be added to a 75.0-g iron block with a specific heat of 0.449 J/g °C to increase its temperature
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Answer:

50,849.25 Joules

Explanation:

The amount of heat, Q, required to raise the temperature of a body with mass, m, and specific heat capacity, c is given by:

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In the case of the iron block:

m = 75 g

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ΔT = 1535 - 25 = 1510 °C

Therefore,

Q = 75 g x 0.449 J/g °C x 1510 °C

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<em>Hence, </em><em>50,849.25 Joules </em><em> of heat must be added to  a 75.0-g iron block with a specific heat of 0.449 J/g °C to increase its temperature from 25 °C to its melting temperature of 1535 °C</em>

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If 3.3167 moles of Al are produced, how many moles of<br> AlCl3 were reacted?<br> I
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Explanation:

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