Answer:
![8.97x10^{22}molecules C_3H_8](https://tex.z-dn.net/?f=8.97x10%5E%7B22%7Dmolecules%20C_3H_8)
Explanation:
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In this case, according to the given chemical reaction and the fact that 22.4 L of a gas are occupied by 1 mol at standard pressure and temperature conditions, it will be possible for us to calculate the number of molecules of propane, by using the Avogadro's number, the 1:3 mole ratio with carbon dioxide and the aforementioned volume-mole ratio to obtain:
![10.01LCO_2*\frac{1molCO_2}{22.4LCO_2}*\frac{1molC_3H_8 }{3molCO_2} *\frac{6.022x10^{23}molec\ C_3H_8}{1molC_3H_8} \\\\=8.97x10^{22}molecules C_3H_8](https://tex.z-dn.net/?f=10.01LCO_2%2A%5Cfrac%7B1molCO_2%7D%7B22.4LCO_2%7D%2A%5Cfrac%7B1molC_3H_8%20%7D%7B3molCO_2%7D%20%20%2A%5Cfrac%7B6.022x10%5E%7B23%7Dmolec%5C%20C_3H_8%7D%7B1molC_3H_8%7D%20%5C%5C%5C%5C%3D8.97x10%5E%7B22%7Dmolecules%20C_3H_8)
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Loses one electron and becomes a positively <span>charged ion.
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The speed of the molecule increses
Answer: 0.5 moles
Explanation:
Nitric acid has a chemical formula of HNO3.
Given that:
Amount of moles of HNO3 = Z (let unknown value be Z)
Volume of HNO3 solution = 2L
Molarity of HCl solution = 1M
Recall that molarity of a solution is obtained by dividing the amount of moles by volume in liters
i.e Molarity = Amount in moles/volume
1M = Z x 2L
Z = (1M / 2L)
Z = 0.5 moles
Thus, 0.5 moles of nitric acid are needed to make 2 liters of its solution.