1. 1 mol=6.02.10²³ particles
2. Molar mass = Total atomic mass of component
AlBr₃ = Ar Al + 3. Ar Br
AlBr₃ = 27 + 3. 80 = 267 g/mol
3. mass = mol x MW
MW MnCl₂ = 55 + 2.35.5=126 g/mol
mass = 31.6 x 126 =3981.6 g
4. at STP, 1 mol =22.4 L, so for 5.6 L :
5. moles = mass : MW
MW CH₃OH = 12.1 + 4. 1 + 16.1 =32 g/mol
6. 1 mol = 22.4 L at STP
1 mol = 6.02.10²³ particles
moles for 8.20 x 10¹⁴ molecules
volume :
The answer is B.prove to be right
Answer:
In the last 25 years, the fish hunt in the Chesapeake Bay occurred very fastly due to which the fish industry enhanced. However, this rapid fish industrialization caused many of the fish species to become endangered. Hence, the fish industries started to use two basic management techniques which were conservation and allocation.
A) 1 & 2
It’s is not 3 because the electrons are found outside of the nucleus; therefore, it only consists of protons and neutrons, and it does has a very dense region.
Answer:
the answer of the question is c
