Answer:b
Explanation: the particles will soon dissolve which means that the particles are changing but the volume is staying the same and the concentration is changing
Answer:
0.2625L
Explanation:
Given parameters":
Volume of solution = 1.25L
Percentage concentration = 21%
Unknown:
Volume of methanol = ?
Solution:
The percentage concentration is one of the different methods for expressing concentration values.
It is given as:
Percentage concentration = ![\frac{Volume of solute}{volume of solution} x 100](https://tex.z-dn.net/?f=%5Cfrac%7BVolume%20of%20solute%7D%7Bvolume%20of%20solution%7D%20%20x%20100)
Now we have to work backwards to derive the percentage concentration;
let the unknown, the volume of methanol which is the solute = P;
21 =
x 100
21 = ![\frac{100p}{1.25}](https://tex.z-dn.net/?f=%5Cfrac%7B100p%7D%7B1.25%7D)
21 = 80p
p = 0.2625L
Answer:
12408 feet per minute
Explanation:
Given: Speed is 141 mi/h
To find: speed in units of feet per minute
Solution:
Use the following units to convert the given speed into feet per minute.
1 mile = 5280 foot
1 h = 60 minutes
Therefore,
141 mi/h
feet per minute.
I am not sure but i think the answer is no C