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lidiya [134]
3 years ago
7

Describe one major laboratory accident mentioned in the training presentation, what chemicals were involved, the type of PPE tha

t was worn at the time of the accident, and how it could have been prevented.
Chemistry
1 answer:
aliya0001 [1]3 years ago
4 0

One of the major lab accidents was of fire when a gas was exposed to heat.

<u>Explanation:</u>

The mishaps or the accidents that take place in the laboratory while experimenting are known as the laboratory accidents. Some of the laboratory accidents are chemical spills, fire or explosion, personal injuries and so on.

One of the major lab accidents was of fire when methane gas was exposed to heat. Because of this it led to fire during the experiment. At the time of the experiment, the personal protective equipment worn were the lab gloves, lab coat and the protective eye care. To avoid such kind of accidents, more care and attention should be paid while experimenting. It should be made sure that there are proper equipment in case any accident takes place.

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Explanation:

Given that:

the mass of the gold nugget (m) = 376 g

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amount of heat lost Q = -4.85 kJ = -4.85 × 10³

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Using the formula for calculating the Heat energy

Q = mc\Delta T \\  \\  Q = m\times c\times (T_2-T_1)

-4.85 \times 10^3 = 376 \times  0.128 \times (T_2 - 398) \\ \\ -4.85\times 10^3 =  48.128(T_2 - 398) \\ \\ \dfrac{-4.85\times 10^3}{48.128}= (T_2 - 398) \\ \\-100.77 = T_2 -398\\\\T_2 = -398 +100.77\\ \\ \mathbf{ T_2 = 297.23K}

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