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6. If 2.00 moles of a material has a mass of 32.0 grams, what is its molar mass? What element is this material composed of? 7
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Answer #1

The answer to both the question is simple

Question 6

The relationship between mass, moles and molar mass is

Moles = mass/molar mass

Putting values we get

2 = 32/ molar mass

Molar mass = 32/2

= 16

So molar mass is 16 and element is oxygen

Question 7

Molar mass of NaCl = 58.44

So

Moles of NaCl = mass/molar mass

= 35 /58.44

= 0.598 moles

I hope this helps if you have any query or want more detailed explanation feel free to ask in the comments section below.

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