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Rom4ik [11]
3 years ago
11

Consider this reaction:

Chemistry
1 answer:
aalyn [17]3 years ago
3 0

Answer:

\large \boxed{\text{C. 112 L}}

Explanation:

We can use Avogadro's Law: Equal volumes of gases under the same conditions of temperature and pressure contain the same number of molecules.  

To say it another say, gases react in the same volume ratios as their coefficients in the balanced equation.

  H₂  +    Cl₂  ⟶ 2HCl

1 mol + 1 mol ⟶ 2 mol

  1 L  +   1 L    ⟶   2 L

Thus,

\text{Volume of HCl} = \text{56 L Cl}_{2}  \times \dfrac{\text{2 L HCl}}{\text{1 L Cl}_{2}} = \textbf{112 L HCl}\\\\\text{The volume of HCl is $\large \boxed{\textbf{112 L}}$}

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The molar mass of HgO is 216.59 g/mol. The molar mass of O2 is 32.00 g/mol. How many moles of HgO are needed to produce 250.0 g
Irina-Kira [14]
A reaction in which Oxygen (O₂) is produced from Mercury Oxide (HgO) would be a decomposition reaction.
           2HgO    →    2Hg    +    O₂

If 250g of O₂ is needed to be produced,
then the moles of oxygen needed to be produced = 250g  ÷  32 g/mol
                                                                                     = 7.8125 mol

Now, the mole ratio of Oxygen to Mercury Oxide is  1  :  2
∴ if the moles of oxygen =  7.8125 mol
then the moles of mercury oxide = 7.8125 mol × 2
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Thus the number moles of HgO needed to produce 250.0 g of O₂ is 15.625 mol
 
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