How many grams will be needed to make a 1.00 Liter solution of 0.500M
sodium chloride?

Mass of NaCl = 29.25 g

Given

A 1.00 Liter solution of 0.500 M  Sodium chloride

Required

Mass of NaCl

Solution

Molarity shows the number of moles of solute in every 1 liter of solute or mmol in each ml of solution

Input the value :

n = M x V

n = 0.5 x 1

n = 0.5 mol

Mass NaCl :

= mol x MW

= 0.5 x 58.5

= 29.25 g

"the periodic table is arranged in order of atomic number."

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

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~ trueboss72