How many total atoms are in 3Na2SO4? - ProProfs Discuss
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How many total atoms are in 3Na2SO4?



A. 21
B. 10
C. 24
D. 18

This question is part of Ch 9 Chemical Reactions Test Practice
Asked by Mrsechols, Last updated: Jul 10, 2020

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2 Answers

C. Bernthal

Its kind of my job to give answers

C. Bernthal, Teacher, MA, P.hD, Seattle

Answered May 29, 2019

In dealing with the matter, there are many parts to it. The atom is the smallest part of the case. Matter can be anything that has weight and takes up space or in other words, has mass. In any substance, it matters when chemicals or elements are mixed. Na2SO4 is called sodium sulfate.

It has a molar mass of 142.04 grams. It's melting point is eight hundred eighty-four degrees Celsius. It is nonflammable. Sodium Sulfate comes in a few different forms like Heptahydrate sodium sulfate, but this is not commonly seen. Sodium sulfate is also called Glauber's salt. It is widely used to make soda ash. 3Na2SO4 has 21 atoms in it based on the numbers that are before and after the element in it.

 

mrsechols

Mrsechols

Answered Apr 11, 2018

21
 

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