Answer:
0.4383 g
Explanation:
Molality is defined as the moles of the solute present in 1 kg of the solvent.
It is represented by 'm'.
Thus,
Given that:
Mass of solvent, water = 150 g = 0.15 kg ( 1 g = 0.001 g )
Molality = 0.050 m
So,
Molar mass of NaCl = 58.44 g/mol
Mass = Moles*Molar mass = 
= 0.4383 g
Answer:
for its one mole it is of 28gram. according to mole concept in one mole, there is 6.022*10^23 moles are present. so mass of 1 molecule of nitogen gas is 28/(6.022*10^23)
Crushing a can, breaking glass, cutting paper, boiling water, chopping wood, and mixing water and sand
Polyatomic ion: a covalently bonded group of atoms that has a positive or negative charge and acts as a unit.
<span>The simplest unit of matter that still retains the properties of an element is an "Atom".
Atom is the smallest particle of any unit that actually can exist retaining the properties of an element. </span><span />
