Answer: The density of the given vapor is 0.939 g/L.
Explanation:
Given: Pressure = 233 mm Hg (1 mm Hg = 0.00131579 atm) = 0.31 atm
Temperature =
= (25 + 273) K = 298 K
According to the ideal gas equation,

where,
P = pressure
V = volume
m = mass
M = molar mass
R = gas constant = 0.0821 L atm/mol K
T = temperature
This formula can be re-written as follows.
(where,
)
Hence, formula used to calculate density of diethy ether (molar mass = 74.12 g/mol) vapor is as follows.

Substitute values into the above formula as follows.

Thus, we can conclude that the density of the given vapor is 0.939 g/L.
Answer:
4.2g/cm^3
Explanation:
Density is a measurement of the amount of mass of a substance can fit into a space. In order to find density you can always use the formula mass/volume (often abbreviated as m/v). In this case that would be 42/10 g/cm^3 or 4.2g/cm^3
The SI unit for measuring distance is the
meter.
I attached a table of SI measurements for you :)
Hope this helped!
The answer is 9. Calcium nitrate is made up
of 3 different elements that equal 9 atoms.