Answer:
Gases, liquids, and even some solids. We can smell them all as long as some of the object's molecules can enter a gaseous state. We smell gases because their molecules are free to enter our noses. We smell liquids because some of their molecules enter the gas phase after escaping from the liquid surface
Answer:
Explanation: Moles ethanol = 21.9 g x 1 mole/46 g = o.476 moles
moles water = 53.6 g x 1 mole/18 g = 2.98 moles
total moles = 0.476 + 2.98= 3.456 moles
mol fraction ethanol = 0.476/3.456 = 0.138
Metals are made up of layers of positively charged kernals so when we hit it it slides over each other and keep on expanding
Answer:
The molarity of the solution = 0.1895 M
Explanation:
The mass of the obtained = 10.55 g
Molar mass of = 278.1 g/mol
The formula for the calculation of moles is shown below:
Thus,
From the reaction:-
1 mole of is produced from 1 mole of
Also,
0.0379 mole of is produced from 0.0379 mole of
Mole of = 0.0379 mol
Volume = 200.0 mL = 0.2 L ( 1 mL = 0.001 L )
Molarity is defined as the number of moles present in one liter of the solution. It is basically the ratio of the moles of the solute to the liters of the solution.
The expression for the molarity, according to its definition is shown below as:
Thus,
<u>The molarity of the solution = 0.1895 M</u>