Molality is defined as the ratio of moles of solute to the mass of solvent in Kg. It is also known as molal concentration.
Formula used for determining the molality is:
(1)
where,
= change in temperature
= freezing point depression constant
m = molality
Here, = and =
Put the above values in formula (1)
=
Hence, molality of nonvolatile solute is
Molar mass O₂ = 16 x 2 = 32.0 g/mol
1 mol O₂--------------------------- 32.0 g
30.5 moles O₂-------------------- ? ( mass O₂)
mass O₂ = ( 30.5 ) x 32.0 / 1
mass O₂ = 976.0 / 1
= 976.0 grams of O₂
hope this helps!
Answer:
The boiling point of the liquid is 47.368°C
Explanation:
Answer:
the amount of neutrons would be the difference in the three isotopes
A pure substance<span> has a definite and constant composition — like salt or sugar. A </span>pure substance <span>can be either an element or a compound, but the composition of a </span>pure substance<span> doesn't vary.</span>