820 g li2so4 is dissolved into 2500 ml of solution. what is the molar concentration?

Molarity is defined as the moles of solute per liter of solution. . Where M is molarity, n is the number of moles and V is the volume. First we must find the molar mass of which is 109.98 g/mol

Then we find the molarity using above equation

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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