MB₂H₆: 2×11g+6×1g= 28 g/mol
...................
B₂H₆ + 3O₂ ---> 2HBO₂ + 2H₂O
28g.......................................2 mol......
28g B₂H₆ ---- 2 mol H₂O
19,2g B₂H₆ --- X
X = (2×19,2)/28
X = 1,37 mol H₂O
The unit of concentration in all the data is M. That is molarity or number of moles of solute per liter of solution.
The amount of sample or volume does not varies the concentration of the solution.
Then you only must compare the molarities and the greater the molarity (moles/liter) the greater the concentration or the more is concentrated the solution.
In this case the order is 0.90 M < 1.00 M < 1.45 M < 2.00 M.
And so, we get to the conclusion that the option C. is the most concentrated solution: 800 mL of 2.00 HCl.
<span>The rug is a better insulator than the tile</span>
Answer:
stratus
Explanation:
<em>The type of cloud that forms close to the ground when the temperature is just above the dew point would be stratus.</em>
Stratus cloud forms when moisture condenses at low-level as a result of light air current pushing cold air above a pocket of warm air.
<u>Stratus clouds are the most similar to fog among all the cloud types because both are formed at low altitudes. However, while fogs are formed from ground moisture, stratus clouds are formed from air moisture.</u>