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Select all ansiers that apply when describing the correct steps needed to solve the following problem.
A sample contains 1.81times 10^23 molecules of oxygen gas (O_(2)) What is the volume of this gas in liters at standard temperature and pressure (STP)?
D Use Avogadro's number to convert from molecules to moles
D Calculate the molar mass of O_(2)
Calculate the number of Liters using the molar mass
D Convert from moles to Liters using 22.4L=1 mol as conversion factor.
Use the molar mass to convert from moles to grams"
Multiple Answer 1 point Select all ansiers that apply when describing the correct steps needed to solve the following problem. A sample contains 1.81times 10^23 molecules of oxygen gas (O_(2)) What is the volume of this gas in liters at standard temperature and pressure (STP)? D Use Avogadro's number to convert from molecules to moles D Calculate the molar mass of O_(2) Calculate the number of Liters using the molar mass D Convert from moles to Liters using 22.4L=1 mol as conversion factor. Use the molar mass to convert from moles to grams
Solución
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Eugeniaveterano · Tutor durante 11 años
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Responder
The correct steps to solve this problem are: Use Avogadro's number to convert from molecules to moles, Convert from moles to Liters using \(22.4L=1\) mol as conversion factor.
Explicar
## Step 1: <br />To solve this problem, we need to follow a series of steps. The first step is to use Avogadro's number to convert from molecules to moles. Avogadro's number is a constant that represents the number of particles (atoms, molecules, ions, etc.) in one mole of a substance. It is approximately equal to \(6.022 \times 10^{23}\) particles per mole.<br /><br />### \(\text{Number of moles} = \frac{\text{Number of molecules}}{\text{Avogadro's number}}\)<br /><br />## Step 2: <br />Next, we need to convert from moles to liters using the conversion factor \(22.4L=1\) mol. This conversion factor is derived from the fact that one mole of any gas at standard temperature and pressure (STP) occupies a volume of 22.4 liters.<br /><br />### \(\text{Volume in liters} = \text{Number of moles} \times \text{Conversion factor}\)<br /><br />## Step 3: <br />Calculating the molar mass of \(O_{2}\) or converting from moles to grams using the molar mass is not necessary in this case because we are asked to find the volume of the gas, not its mass.
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