Answer:
The vapor pressure = 345.8 torr
Explanation:
Step 1: Data given
Number of molesof a non-volatile solute = 0.500 moles
mass of hexane = 275 grams
Molar mass of hexane = 86.18 g/mol
Temperature =49.6 °C
P°(hexane) = 400.0 torr at 49.6°C.
Step 2: Calculate moles solvent
moles of solvent = 275 grams / 86.18 g/mol = 3.19 mol
Mol fraction of the solvent = 3.19 moles / (0.500 + 3.19) = 0.8645
Step 3: Calculate the vapor pressure
P = P° * Xsolvent
⇒ with Xsolvent = mol fraction of the solvent = 0.8645
⇒ with P° hexane =400.0 torr
P = 400.0 * 0.8645 = 345.8 torr
The vapor pressure = 345.8 torr
Answer:
Double Replacement
Explanation:
In a double replacement reaction, the positive-charged cations and the negative-charged anions of the reactants trade places and form two new products.
A is the answer. I hope this helps
Im going to assume you mean the structural formula of butane, which is C4H10. which mean that it has 4 carbon and 10 hydrogen
Answer: the such thing that we call gastric acid, is made/produced by the cells that srebwithi any lining of our stomac, they are coupled in places like feedback system that extend to the acid production when it is needed.
other cells that are within our stomach will bicarbonat, at the base to buffer the fluid making sure that it doesn’t become too acidic
so yes it is
Explanation: hope this helped plz mark brainest