Lauryl alcohol is obtained from cocon ut oil and is used to make detergents. A solution of 5.00 g of lauryl alcohol in 0.100 kg
1 answer:
You might be interested in
Considering the definition of molarity, 0.4375 moles of iron(II) nitrite you would recover.
In order to find the moles of the solid that can be recovered from this solution, you need to use the definition of molarity.
<h3>Definition of molarity</h3>Molar concentration or molarity is a measure of the concentration of a solute in a solution and indicates the number of moles of solute that are dissolved in a given volume.
The molarity of a solution is calculated by dividing the moles of solute by the volume of the solution:
Molarity is expressed in units .
Moles of iron(II) nitrite
In this case, you evaporated 125 mL of a 3.5 M solution of iron(II) nitrite. Then you know:
- Molarity= 3.5 M
- number of moles= ?
- volume= 125 mL= 0.125 L (being 1000 mL= 1 L)
Replacing in the definition of molarity:
Solving:
number of moles= 3.5 M× 0.125 L
<u><em>number of moles= 0.4375 moles</em></u>
Finally, 0.4375 moles of iron(II) nitrite you would recover.
Learn more about molarity:
Answer:
- The two gases will mix and react.: FALSE.
- The two gases will remain separate and will not mix: FALSE.
- The two gases will occupy a volume of 5.0 L and the final pressure in the -two bulbs will be 6.50 atm.: FALSE.
- The two gases will occupy a volume of 5.0 L and the final pressure in the two bulbs will be 3.50 atm.: TRUE.
- The two gases will occupy a volume of 5.0 L and the final pressure in the two bulbs will be 3.25 atm: FALSE.
Explanation:
Hello.
In this case, given the options, since the total volume of the container includes the both of them, we find that:
- The two gases will mix and react: FALSE, since we do not know the identity of the gases which could be the same or two different inert gases.
- The two gases will remain separate and will not mix: FALSE, since as the valve is opened, the total gas will occupy the entire volume as the volume of a gas is the same to the container based on its constant molecules movements.
- The two gases will occupy a volume of 5.0 L and the final pressure in the two bulbs will be 6.50 atm: FALSE, since in this case, by using the Boyle's law for the first compartment we obtain the pressure of the gas there:
Now, we reuse it for the gas at the 3.00-L bulb to find its final pressure:
So the final pressure is:
- The two gases will occupy a volume of 5.0 L and the final pressure in the two bulbs will be 3.50 atm: TRUE considering the total pressure computed above.
- The two gases will occupy a volume of 5.0 L and the final pressure in the two bulbs will be 3.25 atm: FALSE since the final pressure is 3.5 atm.
Regards.