Question

how many moles are present in 400 m of sodium hydrogen .​

Answer 1

Answer:

Here is your answer!

Explanation:

Nathan L. In science, we have a name for this, called Avogadro's number, and it describes the number of representative particles in one mole of a substance. The inverse mole unit tells us there are 6.022×1023 particles of something *per mole*.

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Answer 2

Explanation:

my friend what is "m" in 400m here.

by the way one mole of NaOH=(23+16+1)g

=40g

IF YOU MEAN IN 400 GRAMS NaOH

FOR 40GRAM ------------------------ 1mole

FOR 400GRAM ------------------------ 10mole

IF YOU MEAN IN 400 MILLIGRAMS NaOH

1mg=1/1000g

400mg=0.4g

FOR 40GRAM ------------------------ 1mole

FOR 0.4GRAM ------------------------ 0.01mole