Answer:
47.68 mL
Explanation:
In this case, we have a <u>dilution problem.</u> So, we have to start with the dilution equation:

We have to remember that in a dilution procedure we go from a <u>higher concentration to a lower one</u>. With this in mind, We have to identify the <u>concentration values</u>:


The higher concentration is C1 and the lower concentration is C2. Now, we can identify the <u>volume values</u>:


The V2 value has <u>"mL"</u> units, so V1 would have <u>"mL"</u> units also. Now, we can include all the values into the equation and <u>solve for "V1"</u>, so:


So, we have to take 47.68 mL of the 6 M and add 139.31 mL of water (187-47.68) to obtain a solution with a final concentration of 1.53 M.
I hope it helps!
I think it’s C but I’m not sure
Answer:
As trees grow, they help stop climate change by removing carbon dioxide from the air, storing carbon in the trees and soil, and releasing oxygen into the atmosphere. Trees provide many benefits to us, every day.
Answer:
The reaction is first order.
Rate constant = 0.021 sec^-1
Explanation:
See the attached file for the explanation.
Mass 1 + %abundance of first isotope + Mass 2 + %abundance of second isotope
/ 100
This is RAM.