The radioactive atom R 88 210 a is an alpha emitter. What nucleus does it produce?
1 answer:
Answer:
X 86 206
Explanation:
Radioactive atoms are nuclei that can under go disintegration to emit either an alpha particle, beta particle or gamma radiation. The process could be spontaneous or stimulated.
When a radioactive atom R 88 210 emits alpha particle, it would produce an element with atomic number 86 and mass number 206 i.e X 86 206. An alpha particle is usually a helium nucleus.
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+
+ energy
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Answer : The ion concentration is,
and the pH of a buffer is, 2.95
Explanation : Given,
Concentration of (weak acid)= 0.26 M
Concentration of (conjugate base or salt)= 0.89 M
First we have to calculate the value of .
The expression used for the calculation of is,
Now put the value of in this expression, we get:
Now we have to calculate the pH of the solution.
Using Henderson Hesselbach equation :
Now put all the given values in this expression, we get:
The pH of a buffer is, 2.95
Now we have to calculate the ion concentration.
The ion concentration is,