Answer:
6.054×10²⁵
Explanation:
1)find number of moles of zinc
2)multiply the mole of zinc with 2
3)use the formula mol = number of particle/ avogadro constant
A...........................
Answer:
Oxygen.
Explanation:
Hello!
In this case, since the ideal gas equation allows us to compute the moles of oxygen in 5.60 L at STP (1 atm and 273.15 K) as shown below:
![PV=nRT\\\\n=\frac{PV}{RT}=\frac{1atm*5.60L}{0.08206\frac{atm*L}{mol*K}*273.15K}\\\\n_{O_2}= 0.25mol](https://tex.z-dn.net/?f=PV%3DnRT%5C%5C%5C%5Cn%3D%5Cfrac%7BPV%7D%7BRT%7D%3D%5Cfrac%7B1atm%2A5.60L%7D%7B0.08206%5Cfrac%7Batm%2AL%7D%7Bmol%2AK%7D%2A273.15K%7D%5C%5C%5C%5Cn_%7BO_2%7D%3D%200.25mol)
Next, given the molar mass of carbon dioxide (44.01 g/mol) we compute the moles in 10.0g of this gas via:
![n_{CO_2}=10.0gCO_2*\frac{1molCO_2}{44.01gCO_2} =0.23molCO_2](https://tex.z-dn.net/?f=n_%7BCO_2%7D%3D10.0gCO_2%2A%5Cfrac%7B1molCO_2%7D%7B44.01gCO_2%7D%20%3D0.23molCO_2)
Thus, since oxygen has the greatest number of moles, we immediately infer it also has the greatest number of molecules based on the Avogadro's number.
Best regards!
Answer:
rocky surface covered with landforms
Explanation: