Calculate the number of mole in
![1.51 \times 10 {}^{23 } molecules \: of nh 4cl 1.51 \times 10 {}^{23 } molecules \: of nh 4cl](https://tex.z-dn.net/?f=1.51+%5Ctimes+10+++%7B%7D%5E%7B23+%7D+molecules+%5C%3A+of+nh+4cl)
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Answer:
Ans is 0.25
1.51×10^23÷Avagardo no.
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