Why is it not a good idea to use a stopper when combining two unknown substances in test?

1 answer:

Colt1911 [192]4 years ago

6 0

Hi!

You would not want to use a stopper when combining two unknown substances because the gasses made from the combination could end up creating to much pressure and explode.

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In Atomic Absorption Spectrophotometry, narrow atomic lines are desirable. However, line broadening arises from: (a) Jablonski e

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Answer: b) Doppler Effect

Explanation:

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Doppler effect arises because along the line of observation, atoms will have different components of velocity.

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4 years ago

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3 years ago

Identify the brønsted base in the forward reaction hpo2− 4 (aq) + hno3(aq) ⇀↽ no− 3 (aq) + h2po− 4 (aq). 1. h2po− 4 (aq) 2. hno3

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For the reaction,
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3 years ago

When 27.50 liters of oxygen gas reacts with excess hydrogen gas at STP how many grams of water is produced?

telo118 [61]

Answer: The mass of water produced is 44.28 g

Explanation:

We are given:

Volume of oxygen gas = 27.50 L

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22.4 L of volume is occupied by 1 mole of a substance

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