14 c > b + 14 n
6 7
what is the charge of a beta particle?
what is the mass of a beta particle?
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Ответ:
The number of moles of strontium bicarbonate is![7.5\times 10^{-9}mol](/tpl/images/0309/1661/9c17b.png)
Explanation:
Formula units are defined as lowest whole number ratio of ions in an ionic compound. It is calculate by multiplying the number of moles by Avogadro's number which is![6.022\times 10^{23}](/tpl/images/0309/1661/3e6f5.png)
We are given:
Number of formula units of![Sr(HCO_3)_2=4.55\times 10^{15}](/tpl/images/0309/1661/c300a.png)
As,
number of formula units are contained in 1 mole of a substance.
So,
number of formula units will be contained in =
of strontium bicarbonate.
Hence, the number of moles of strontium bicarbonate is![7.5\times 10^{-9}mol](/tpl/images/0309/1661/9c17b.png)