The answer should be; 11
The atomic mass number is found by combining the number of protons and neutrons
Hope this helps :)
Answer:
A. stored energy
Explanation:
potential energy is stored energy.
kinetic energy is the energy of motion
M=260 g
M=414.215 g/mol
n=m/M
n=260 g / 414.215 g/mol = 0.6277 mol
Answer: Percent recovery is 47.34 %
Explanation:
Percent yield is defined as the ratio of experimental yiled to theoretical yield in terms of percentage.
Putting in the values we get:
Therefore, the percent recovery is 47.34 %
Moles = n/v where n is the moles of solute and v being the liters of solution.
We can put in the information provided to find the molarity.
Moles = .45/3.0 = .15
So we now know that the molarity of that solution is .15!
I hope I helped you :). Make sure to memorize that formula because it's not that hard as long as you know what to plug in.
