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Author Question: A sample of ammonia has a mass of 84.7 g. How many molecules are in this sample? (Read 150 times)

CQXA

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on: Mar 21, 2021

Question 1

A reaction occurs between sodium carbonate and hydrochloric acid producing sodium chloride, carbon dioxide, and water. The correct set of coefficients, respectively, for the balanced reaction is:

◦ 3   6   6   3   4
◦ 8   6   5   10   5
◦ 5   10   10   5   5
◦ 1   2   2   1   1
◦ none of these are correct

Question 2

A sample of ammonia has a mass of 84.7 g. How many molecules are in this sample?

◦ 4.97 molecules
◦ 5.10 × 1025molecules
◦ 1.21 × 1023molecules
◦ 2.99 × 1024molecules
◦ 1.68 × 10–15molecules
Chemistry: An Atoms First Approach ¦ Zumdahl, DeCoste ¦ 3rd Edition
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Marked as best answer by CQXA on Mar 21, 2021

ErinKing

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Reply #1 on: Mar 21, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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CQXA

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Reply 2 on: Mar 21, 2021
YES! Correct, THANKS for helping me on my review

pratush dev

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Reply 3 on: Yesterday
:D TYSM

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