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jek_recluse [69]
2 years ago
5

Why are lab rules important

Chemistry
2 answers:
valentina_108 [34]2 years ago
6 0

Answer:

Because you can die if you dont be safe my guy.

If you dont

be safe in a lab it can be very dangerus and some times even deadly.

Tyler is gay

tino4ka555 [31]2 years ago
6 0

Answer:

if we do not have lab rules then something could go wrong like we could die or like what happened right now CORONAVIRUS that is why lab rules are so important to prevent things like this from happening

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2 years ago
If 3 moles of a compound use 12 J of energy in a reaction, what is the Hreaction in kJ/mol
igomit [66]

Answer:

\Delta _RH=4x10^{-3}\frac{kJ}{mol}

Explanation:

Hello,

In this case, the molar enthalpy of reaction is obtained by dividing the involved energy by the reacting moles:

\Delta _RH=\frac{12J}{3mol} =4\frac{J}{mol}

Thus, it is important to notice that the compound "uses" the energy, it means that it absorbs the energy, for that reason the sign is positive. Moreover, computing the result in kJ/mol we finally obtain:

\Delta _RH=4\frac{J}{mol}*\frac{1kJ}{1000J} =4x10^{-3}\frac{kJ}{mol}

Best regards.

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Structure is in document below.
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Download docx
8 0
3 years ago
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