one
In each formula unit of NaCl there is one Na+ ion. Therefore, amount of sodium ions = amount of NaCl = 4.25mol
Every formula unit of sodium chloride has one sodium atom. Therefore, there are 4.0 moles of sodium ions in 4.0 moles of NaCl.
There is only one chloride ion in the formula unit of sodium chloride.
2
The formula is NaCl; therefore, the formula has one sodium atom.
In each formula unit of NaCl there is one Na+ ion. Therefore, amount of sodium ions = amount of NaCl = 4.25mol
Every formula unit of sodium chloride has one sodium atom. Therefore, there are 4.0 moles of sodium ions in 4.0 moles of NaCl.
There is only one chloride ion in the formula unit of sodium chloride.
The, usually subscript,"2" after "Cl" indicates how many there are. Calcium chloride, CaCl2, has to Chloride ions while sodium chloride, NaCl, has only one (indicated by no number following the Cl).
2
2 Sodium and Chloride.
The formula unit of NaCl (sodium chloride) contain 2 atoms.
The formula is NaCl; therefore, the formula has one sodium atom.
The formula unit NaCl contain one sodium atom.
145 grams NaCl (1 mole NaCl/58.44 grams)(1 mole Na +/1 mole NaCl)(6.022 X 1023/1 mole Na +) = 1.49 X 1024 ions of sodium =====================
The atomic number of Sodium (Na) is 11.The atomic number of Chlorine (Cl) is 17.There are one Sodium ion (Na+) and one Chloride ion (Cl-) in every Sodium Chloride (NaCl) molecule.
30 g NaCl = 0.513 mol NaCl So No. of Na+ ions = 3.088 X 1023 So No. of Cl- ions = 3.088 X 1023