Question

how many molecules or atoms are present in 1.7 moles of ammonia

Answer 1

hi friend
here's your answer looking for

as we know that one mole of any molecule of atom will contain
$\\ 6.022 \times {10}^{23} particles$

so, 1.7 mole of any molecule will contain

$(6.022 \times {10}^{23} ) \times 1.7 \\ \\ = 10.2374 \times {10}^{23} \\ \\ = 1.02374 \times {10}^{24} particles$

hence, 1.7 mole of ammonia will also contain

$1.02374 \times {10}^{24} moecule$
so, this is your answer

hope you are satisfied with my answer

Answer 2

The answer is attached