Explanation:
As the given reaction equation is as follows.
Hence, expression for of this reaction is as follows.
Now, putting the given values into the above expression as follows.
=
=
Thus, we can conclude that the value of is .
V1/T1=V2/T2
524 cm^3/491 K =V2/297K
V2=(524 cm^3*297K)/491 K= 317K
Answer:
C: francium-221
Explanation:
First of all to get a broader perspective, every isotope of francium usually undergoes decay to form astatine, radium, or radon.
Now, Francium-223 and francium-221 are it's only isotopes that occur in nature.
However, francium-221 is the one that undergoes alpha decay to produce astatine-217.
Answer:
2.13L
Explanation:
first you must find the amount(mols) of HCl in the solution. then you can use that to find the volume of the solution.
we know the:
mass m = 9.35g
molar mass M = 1 + 35.5=36.5 g/mol ( <em><u>check</u></em><em><u> </u></em><em><u>pe</u></em><em><u>riodic</u></em><em><u> </u></em><em><u>table</u></em><em><u> </u></em>)
concentration c = 0.120 mol/L
amount ( mols) of HCl:
n= m/M
n(HCl) = 9.35/36.5
= 0.2561644 mol
concentration of HCl in solution:
n= cV
V(HCl) = n/c
= 0.2561644/0.120
= 2.1347
= 2.13 L (<em>3sf</em><em>)</em><em> </em>