Problemas
Multiple Choice 1 point How many moles of oxygen gas (O_(2)) is needed to produce 18.0 liters of CO_(2) at STP? CH_(4(g))+2O_(2(g))arrow CO_(2(g))+2H_(2)O_((l))
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Respuesta
1.608 moles of
Explicación
## Step 1: Identify the balanced chemical equation for the reaction. The given equation is already balanced:
## Step 2:Determine the mole ratio between
and
from the balanced equation. According to the equation, 1 mole of
is produced from 2 moles of
.## Step 3:Use the ideal gas law at STP (Standard Temperature and Pressure) to find the number of moles of
. At STP, 1 mole of any gas occupies 22.4 liters. Therefore, 18.0 liters of
corresponds to:
## Step 4:Calculate the moles of
needed using the mole ratio from Step 2. Since 1 mole of
requires 2 moles of
, 0.804 moles of
will require: