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VashaNatasha [74]
3 years ago
5

Solid lead(ii) sulfide reacts with aqueous hydrochloric acid to form solid lead(ii) chloride and dihydrogen sulfide gas. express

your answer as a chemical equation. identify all of the phases in your answer.
Chemistry
2 answers:
Viefleur [7K]3 years ago
4 0
PbS(s) + 2HCl(aq) → PbCl₂(s) + H₂S(g)

PbS(s) + 2H⁺(aq) + 2Cl⁻(aq) → PbCl₂(s) + H₂S(g)

PbS + 2H⁺ → Pb²⁺ + H₂S
Pb²⁺ + 2Cl⁻ → PbCl₂


ella [17]3 years ago
4 0

Answer: The chemical equation is;

PbS(s)+2HCl(aq)\rightarrow PbCl_2(s)+H_2S(g)

Explanation:

The described reaction between solid lead sulfide and aqueous hydrochloric acid can represented in the in the form of chemical equation as given below:

PbS(s)+2HCl(aq)\rightarrow PbCl_2(s)+H_2S(g)

1 mol of lead(ii) sulfide reacts with hydrochloric acid to give 1 mole of lead chloride and hydrogen sulfide gas.

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3 years ago
7.5 moles of nitrogen gas (N2) is formed in the following reaction. How many grams
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Answer:

Mass = 255 g

Explanation:

Given data:

Number of moles of nitrogen = 7.5 mol

Mass of ammonia formed = ?

Solution:

Chemical equation:

3H₂ + N₂      →    2NH₃

Now we will compare the moles of nitrogen and ammonia.

             N₂         :        NH₃

               1          :         2

              7.5       :       2/1×7.5 = 15

Mass of ammonia:

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Mass = 255 g

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3 years ago
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I hope this was found helpful!
I was happy to assist you with your Homework :)
4 0
4 years ago
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Osmosis is the process responsible for carrying nutrients and water from groundwater supplies to the upper parts of trees. The o
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Answer: Molar concentration of the tree sap have to be 0.783 M

Explanation:

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R = Gas constant = 0.0821\text{ L.atm }mol^{-1}K^{-1}

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Putting values in above equation, we get:

19.6atm=1\times C\times 0.0821\text{ L.atm }mol^{-1}K^{-1}\times 305K

C=0.783M

Thus the molar concentration of the tree sap have to be 0.783 M to achieve this pressure on a day when the temperature is 32°C

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