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pashok25 [27]
3 years ago
7

A sample of gas in which [h2s] = 5.25 m is heated to 1400 k in a sealed vessel. after chemical equilibrium has been achieved, wh

at is the value of [h2s]? assume no h2 or s2 was present in the original sample.
Chemistry
1 answer:
raketka [301]3 years ago
4 0
When the reaction equation is:

by using the ICE equation:

                   2H2S(g)  ↔ 2 H2(g) +  S2(s)

initial            5.25                 0            0

change         -2X                 +2X         +X

Equ           (5.25-2X)              2X           X

and when Kc = 2.2 x 10^-4 

Kc = [H2]^2/ [H2S]^2

    = (2x)^2 / (5.25-2X)^2 by solving for X 

∴X = 0.038 M

∴[H2S] = 5.25 - 2X 

             = 5.25 - (2*0.038)

            = 5.174 M

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Can you please help me and can you show your work please
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Answer:

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Explanation:

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In this case, since the mole-mass-particles relationships are studied by considering the Avogadro's number for the formula units and the molar mass for the mass of one mole of substance, we proceed as shown below:

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2. Here, since the molar mass of NaOH is 40.00 g/mol, we obtain:

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5 0
3 years ago
2a. Write down the names of the new substances formed when each of the following substance reacts with dilute hydrochloric acid.
Naddika [18.5K]

Answer:

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iii) dilute hydrochloric acid will react with calcuim carbonate to form Calcium chloride, Carbon dioxide and water.

Explanation:

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