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3241004551 [841]
2 years ago
5

Which of these describes a Mole in Chemistry?

Chemistry
1 answer:
olya-2409 [2.1K]2 years ago
5 0

Answer: Thus the correct option is  D. All of the above describe a mole

Explanation:

According to avogadro's law, 1 mole of every substance weighs equal to molecular mass in grams.

1 mole of every substance contains avogadro's number 6.023\times 10^{23} of particles.

Mole is the S.I unit for measuring the amount of substance. It is often used to measure large number of particles.

Thus the correct option is  D. All of the above describe a mole

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What is the arrangement of the modern periodic table based upon
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3 years ago
375ml of a 0.455m sodium chloride solution is dilluted with 1.88l of water. what is the new concentration in molarity
mestny [16]
0.375 L of the NaCl solution contains 0.455 moles  (1)

            since it was diluted to 1.88 L

then let   1.88 L of solution contain  x  moles  (2)

            by combining both (1) and (2)      
       
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Thus the molarity of the NaCl after being diluted is 0.702 M  OR 0.702 mol / L   OR  0.702 mol/dm³. 
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