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labwork [276]
10 months ago
14

Someone please help me figure out the significant figure

Chemistry
1 answer:
Neporo4naja [7]10 months ago
4 0
I believe the answer is 15kg since after that there is 16kg and before there is 14kg
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A 687.80-g sample of a noble is held in a 15 L cylinder tank at 3800 torr and a temperature of 22 degrees C. Identify the gas.
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3 years ago
A 0.55 g sample of H20 contains how many<br>molecules of water?<br>Answer in units of molec.​
noname [10]

Answer:

Explanation:

Num of molecules = num of moles * Avogadro's constant (6.02* 10^23)

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7 0
3 years ago
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raketka [301]

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2 years ago
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faust18 [17]

its me again this is how you find the answer. note: i dont have the periodic table to see the exact atomic mass to find the molar mass however this is the answer:

so the actual formula is Mg(OH) with a 2 as a subscript because there are 2 Mg. so with Mg(OH)2 the Molar mass is 58.32g/mol. 58.32 g/mol x 7.1x1024 = 4.1x1026g

6 0
3 years ago
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