Question #0b3dc

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Question #0b3dc

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Answer 1 · 2017-08-29T01:20:30

#7.12 xx 10^25#

Explanation:

Each water molecule contributes two (2) hydrogen atoms, and each ammonia molecule contributes three (3) hydrogen atoms, so we have a total of:
#2 xx 2.60 xx 10^25 + 3 xx 6.40 xx 10^24 =#
# 5.2 xx 10^25 + 19.2 xx 10^24 = 5.2 xx 10^25 + 1.92 xx 10^25 =#
#7.12 xx 10^25#

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