Before investigating the scene, the technician must dilute the luminol solution to a concentration of 4.00×10−2M . The diluted solution is then placed in a spray bottle for application on the desired surfaces.
How many moles of luminol are present in 2.00 L of the diluted spray?
mols = M x L = ?
To calculate the number of moles of luminol present in the diluted spray, we'll use the formula:
moles = concentration (in M) x volume (in L)
Given:
Concentration of luminol solution = 4.00×10^(-2) M
Volume of the diluted spray = 2.00 L
Substituting these values into the formula:
moles = 4.00×10^(-2) M x 2.00 L
moles = 8.00×10^(-2) mol
Therefore, there are 8.00×10^(-2) moles of luminol present in 2.00 L of the diluted spray.