Answer:
The final pressure of the carbon dioxide gas will 11.84 atm.
Explanation:
Moles of carbonic acid = ![\frac{60.0 g}{62 g/mol}=0.9677 mol](https://tex.z-dn.net/?f=%5Cfrac%7B60.0%20g%7D%7B62%20g%2Fmol%7D%3D0.9677%20mol)
![H_2CO_3(aq)\rightarrow H_2O(l) + CO_2(g)](https://tex.z-dn.net/?f=H_2CO_3%28aq%29%5Crightarrow%20H_2O%28l%29%20%2B%20CO_2%28g%29)
According to reaction, 1 mol of carbonic acid gives 1 mole of carbon dioxide gas.
Then 0.9677 moles of carbonic acid will give :
of carbon dioxide
Moles of carbon dioxide gas = n = 0.09677 mol
Volume of soda bottle = ![V_1=2 L](https://tex.z-dn.net/?f=V_1%3D2%20L)
Pressure of the carbon dioxide gas = P
Temperature of the carbon dioxide gas = T = 298 K
(ideal gas law)
![P=\frac{nRT}{V}=\frac{0.9677 mol\times 0.0821 atm L/mol K\times 298 K}{2 L}=11.84 atm](https://tex.z-dn.net/?f=P%3D%5Cfrac%7BnRT%7D%7BV%7D%3D%5Cfrac%7B0.9677%20mol%5Ctimes%200.0821%20atm%20L%2Fmol%20K%5Ctimes%20298%20K%7D%7B2%20L%7D%3D11.84%20atm)
The final pressure of the carbon dioxide gas will 11.84 atm.
Answer:
•How do you find the delta H per grams in an chemical formula
➢ Subtract the sum of the heats of formation of the reactants from that of the products to determine <u>delta H: delta H = –110.53 kJ/mol</u> – (–285.83 kJ/mol) = 175.3 kJ.
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Answer:
C. Electrons flow from an outlet into a toaster, causing it to heat a
slice of bread.
Explanation:
Current produces a heating effect. Current may be used to produce a heating effect in appliances such as the electric pressing iron, toaster, oven etc.
When electrons flow from an outlet into a toaster and the current thus obtained heats a slice of bread, current is said to flow from the outlet into the toaster.
Let us remember that current refers to the flow of electrons in a circuit.
Protons and electrons are equal