Answer:
c:the spin of the earth is the answer
Answer:
Mole fraction of solute is 0.0462
Explanation:
To solve this we use the colligative property of lowering vapor pressure.
First of all, we search for vapor pressure of pure water at 25°C = 23.8 Torr
Now, we convert the Torr to mmHg. Ratio is 1:1, so 23.8 Torr is 23.8 mmHg.
Formula for lowering vapor pressure is:
ΔP = P° . Xm
Where ΔP = P' (Vapor pressure of solution) - P° (Vapor pressure of pure solvent)
Xm = mole fraction
24.9 mmHg - 23.8 mmHg = 23mmHg . Xm
Xm = (24.9 mmHg - 23.8 mmHg) / 23mmHg
Xm = 0.0462
Answer:
Imagine that x (ounce) is the amount of paint used to paint the flag
Base on the information, we know that:
2/3 + 3/5 + 2/15 + x = 2
x = 2 - 2/3 - 3/5 - 2/15
x = 30/15 - 10/15 - 9/15 - 2/15
x = 9/15 = 0.6 (ounce)
So the amount of paint used to paint the flag is 0.6 ounce.
It is not used up in a reaction. This is because a catalyst is added to a reaction in order to speed it up, but only for that—it doesn’t react with anything, so it isn’t a product nor reactant of any reaction