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Question: > What will be the number of hydrogen atoms in \(8.5\)g of \(NH_{3}\)? > >...

What will be the number of hydrogen atoms in 8.58.5g of NH3NH_{3}?

A

6.023×10236.023 \times 10^{23}

B

5.31×10−235.31 \times 10^{- 23}

C

9.034×10239.034 \times 10^{23}

D

3×10233 \times 10^{23}

Answer

9.034×10239.034 \times 10^{23}

Explanation

Solution

(3) : Number of hydrogen atoms in one mole or 17 g of NH3=3NH_{3} = 3

Number of hydrogen atoms in 8.58.5g of NH3NH_{3}

=317×8.5×6.023×1023=9.034×1023= \frac{3}{17} \times 8.5 \times 6.023 \times 10^{23} = 9.034 \times 10^{23}