Answer:
M=28.88 gm/mol
Explanation:
Given that
T= 95 K
P= 1.6 atm
V= 4.87 L
m = 28.6 g
R=0.08206L atm .mol .K
We know that gas equation for ideal gas
P V = n R T
P=Pressure , V=Volume ,n=Moles,T= Temperature ,R=gas constant
Now by putting the values
P V = n R T
1.6 x 4.87 = n x 0.08206 x 95
n=0.99 moles
We know that number of moles given as
M=Molar mass
M=28.88 gm/mol
Answer:
Explanation:
average speed is distance traveled over time
v = (50 + 30(1.5)) / (2 + 1.5) = 27.1428571...
v = 27 km/hr
Because for this particular point, the molecules of the substance are accumulating power supplied to break the bonds earch other and changing physical state of substance.
If you notice any mistake in my english, please let me know, because my english level is still low.
Answer:
New Moon - Crescent Moom ---- Full Moon ---- Waning Quarter
Explanation:
The Moon revolves around the Earth in a 28 day period, which is approximately one Earth month, therefore S the student has been recording the movement of the Moon for 4 Earth weeks this is a period of complete revolution of the Moon .
Consequently you must register the following phases
New Moon - Crescent Moom ---- Full Moon ---- Waning Quarter
in the period where it begins, it must go through the cycle in an orderly way to the right.