Answer:
He.
Explanation:
- Graham's law states that the effusion rate is inversely proportional to the molecular weight. It means that the gas with the lowest molecular weight will have the highest effusion rate.
The molecular weights of the given gases are:
Cl₂ = 70.9 g/mol.
He = 2.0 g/mol.
O₂ = 32.0 g/mol.
Ne = 20.17 g/mol.
<em>Since He has the smallest molecular mass, so it will have the highest rate of effusion.</em>
<em></em>
Answer:
Explanation:
Given that:-
Mass of the hydrated salt = 7.028 g
Mass of the anhydrous salt = 3.100 g
Mass of water eliminated = Mass of the hydrated salt - Mass of the anhydrous salt = 7.028 - 3.100 g = 3.928 g
<u>Moles of water:
</u>
Mass of water = 3.928 g
Molar mass of 
= 18 g/mol
The formula for the calculation of moles is shown below:
Thus, moles are:
<u>Moles of anhydrous salt:
</u>
Amount = 3.100 g
Molar mass of 
= 142.04 g/mol
Thus, moles are:
The simplest ratio of the two are:
=0.02182 : 0.2212 = 1 : 10
<u>Hence, the formula for hydrate is:- </u>
Answer:22.37 mph
Explanation:
100 meters = 0.062137 miles
Assume constant speed over the distance.
0.062137 miles in 10 sec
0.372822 miles in 60 sec = 1 minute
22.36932 miles in 60 minutes
22.37 mph rounded to 2 decimals
Answer:
B
Explanation:
when two plates come together and one goes underneath, it forms a ridge.
