g You found a large container of NaOH solution that is missing its concentration label in the lab stockroom. To determine its concentration, you titrated it with sulfuric acid and found that it took 12.50 mL of 0.1500 M H2SO4 to completely neutralize 16.50 mL of the NaOH solution. What was the concentration of the original NaOH solution

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

the density of gold = 19.3 g/cm3

the relation between density and mass and volume is

density = mass / volume

given :

mass of gold = 13 g

density = 13g / volume = 19.3

volume = 13 /19.3 = 0.67 cm^3

thus volume of gold nugget = 0.67 cm^3