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  • Find (a) the total number of protons in 34 mg of NH 3 at STP. Will the answer change if the temperature and pressure are changed?

2.2    (iii) Find (a) the total number of protons in 34 mg of NH3 at STP.
Will the answer change if the temperature and pressure are changed ?

Answers (1)

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1 mole of ammonia NH_{3} =  17g\ NH_{3} = 6.022\times10^{23}\ molecules\ of\ NH_{3}.

and 1 atom of  NH_{3} contains = 7+3 =10\ protons.

Therefore, the number of protons in 1 mole of NH_{3} = 6.022\times10^{24}\ protons.

Number of protons in 3mg of NH_{3}:=\frac{(6.022\times10^{24}\times34)}{17} \times 1000 = 1.2044\times10^{22}\ protons 

No, there will be no effect of temperature and pressure.

 

Posted by

Divya Prakash Singh

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