Answer : The molar mass of unknown gas is, 41 g/mole
Solution : Given,
Diffusion rate of neon gas = 7 cm/s
Diffusion rate of unknown gas = 4.9 cm/s
Molar mass of neon gas = 20 g/mole
According to the Graham's law, the rate of effusion of a gas is inversely proportional to the square root of the molar mass of the gas.
Formula used :

where,
= diffusion rate of neon gas
= diffusion rate of unknown gas
= molar mass of neon gas
= molar mass of unknown gas
Now put all the given values in the above formula, we get the molar mass of unknown gas.


Therefore, the molar mass of unknown gas is, 41 g/mole
Hmmm.. i think B. I dont understand the the answer choices.
Explanation:
In this problem, we are given a conversion factor.

So, since we know this, we can simply multiply 25 by 6.5 to see what the distance will be.
25 * 6.5 = 162.5
So, the distance traveled for 25 seconds is 162.5 miles.
Answer:
actually yes some tiny organisms can help fight off diseases and possibly are slightly better than meds
Explanation:
i actually read an article about it not to long ago and found out that new mexico found something very similar
hope this helps :) also if you can pls mark me as brainliest