How many grams are present in 7.2 mol of table salt, nacl?

-

421.2 g

Explanation: -

Atomic mass of Na = 23 g / mol

Atomic mass of Cl = 35.5 g / mol

Molar mass of NaCl = 23 x 1 + 35.5 x 1

= 58.5 g / mol

Number of moles of NaCl = 7.2 mol

Mass of NaCl = number of moles x molar mass

= 7.2 mol x 58.5 g/ mol

= 421.2 g

b) mutualism

hope this : )

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.