Answer:
The vapor pressure of the solution is 3.69 torr
Explanation:
Step 1: Data given
Mole fraction of benzene in the solution = 0.139
P° of benzene is 26.5 torr
Step 2: Calculate the vapor pressure of the solution
Psolution = Xbenzene * P°benzene
⇒with Psolution = the vapor pressure of the solution
⇒with Xbenzene = the mole fraction of benzene = 0.139
⇒with P°benzene = the vapor pressure of pure benzene = 26.5 torr
Psolution = 0.139 * 26.5 torr
Psolution = 3.69 torr
The vapor pressure of the solution is 3.69 torr
Answer:
Explanation:
Hello,
In this case, the first step is to compute the molar mass of carbon dioxide as shown below, considering it has one carbon atom and two oxygen atoms:
It is important to notice it is the mass in one mole of such compound. Afterwards, we need to use the Avogadro's number to compute the how many moles are in the given molecules of carbon dioxide as shown below:
Finally, the mass by using the molar mass:
Best regards.
The answer is B, nic fiss, nic fusi
A solid will start to melt when it reaches its melting point. For example the melting point of Helium is -272° Celsius and the melting point of Carbon is 3500° Celsius . Helium has the lowest melting point and carbon has the highest melting point in the periodic table.
