How many grams are in 2.3×10^-4 moles of calcium phosphate, ca3 (po3)2

Answer : The mass of calcium phosphate is, 0.0713 grams

Explanation : Given,

Moles of calcium phosphate, =

Molar mass of calcium phosphate, = 310.18 g/mole

Formula used :

Now put all the given values in this formula, we get the mass of calcium phosphate.

Therefore, the mass of calcium phosphate is, 0.0713 grams

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!

if you need further assistance, let me know: )

~ trueboss72