Calculate the number of moles of zn(no3)2 in 131.50 g of this substance. note that the formula weight of zn(no3)2 is 189.40 amu.

To calculate the moles of Zn(NO3)2 you would divide 131.50g by the formula weight (molar mass) 189.40 which would be .6953mol

Hello thereone of the following properties was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version. which property fits this description? answer: atomic mass  was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

Ithink the answer is d.