Answer:
3.4g of Al
Explanation:
you would need to start with 3.4 g of Al
Use M x V = M' x V'
0.300 x V = 0.100 x 250
V = .......... ml
A. Chemistry
The scientific study of matter and the changes it undergoes is called chemistry
Volume of room = 
= 
Now, according to conversion factor, convert 6,400 mg to micrograms
Since, 1 mg is equal to 1000 microgram.
Therefore, 6,400 mg = 
= 6,400,000 micrograms of acetone.
To calculate concentration of acetone, divide volume and evaporated amount of acetone in micrograms.
Thus,
Concentration of acetone = 
= 39296.5910 microgram per cubic meter or 
Hence, concentration of acetone is equal to 