3 years ago

What is the volume of 3.5 moles of oxygen gas (O2) at standard temperature and pressure (STP)?

Chemistry

2 answers:

Irina-Kira [14]3 years ago

5 0

Any Option or is this a open ended question???

aksik [14]3 years ago

5 0

3.5 moles of O2/1 * 22.3liters/1mole
Moles cancel
3.5*22.4=78.4 liters of O2 gas

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Given information

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Recall that, the Avogadro's constant is given as

$6.02\cdot10^{23}$ $\begin{gathered} 5.45\cdot10^{26}\text{ = x }\cdot\text{ 6.02 }\cdot10^{23} \\ \text{Divide both sides by 6.02 }\cdot10^{23} \\ x\text{ = }\frac{5.45\cdot10^{26}}{6.02\cdot10^{23}} \\ x\text{ = }\frac{5.45}{6.02}\cdot10^{26\text{ - 23}} \\ x\text{ = 0.9053 }\cdot10^3 \\ x\text{ = 905.32 moles} \end{gathered}$

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