Problemas
Naric acid decomposes in light to form nitrogen dioxide, water, and oxygen according to the following chemical equati 4HNO_(3)(l)xrightarrow (light)4NO_(2)(g)+2H_(2)O(l)+O_(2)(g) Naric acid If 2.6 g nitric acid decomposes, what is the total volume of oxygen gas produced? 0.091 0.221 111 0.060
Roztwór
Pedro
élite · Tutor durante 8 años
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Respuesta
To solve this, we need to calculate the volume of oxygen gas produced when 2.6 g of nitric acid decomposes.### Step 1: Write down the balanced chemical equationThe decomposition reaction is:
From the equation, **4 moles of
** produce **1 mole of
**.---### Step 2: Calculate the number of moles of
The molar mass of
is:
The number of moles of
in 2.6 g is:
---### Step 3: Use stoichiometry to find moles of
From the balanced equation, 4 moles of
produce 1 mole of
. Therefore:
---### Step 4: Calculate the volume of
at standard conditionsAt standard temperature and pressure (STP), 1 mole of gas occupies 22.4 L. Thus:
---### Final Answer:The total volume of oxygen gas produced is approximately **0.221 L**.Correct option: **0.221**