Explanation:
The given data is as follows.
No. of moles =
, V = ?
T = 20.2 + 273 K = 293.2 K, P =
= 1.046 atm, R = 
Calculate the volume using ideal gas equation as follows.
P V = n R T

V = 
= 
=
L
Thus, we can conclude that volume of the gas is
L.
Answer: the pH is 11.78
Explanation:Please see attachment for explanation
You would need to double the pressure because of compressing the hydrogens volume to a half.
Answer:
A
Explanation:
Radon is an alpha emitter. It emits alpha particles giving off gamma ray. It is a radioactive byproduct of radium-222.
Radon also penetrates the skin. This is because radon is a gas and chemically unreactive with most materials, it moves easily through very small spaces, such as those between particles of soil and rock, to the soil surface
Option B is wrong. It is produced during radioactive decay of radium and not uranium.
Option C is wrong. Radon is not a metallic element.
Option D is wrong also. It is not produced from photochemical smog
Option E is wrong. This is an extension of option B. Uranium is generally used in nuclear plant operations and not radium