molar mass of MgCl2=95.211g/mol
mol=mass/molar mass=34.8g*mol/95.211g=0.3655039859molMgCl2
#of anything=mol*Avogadro's#=0.3655mol*6.022*1023formula units/mol
answer= 2.20*1023
Approx. 3 formula units (the molar mass of the anhydrous MgCl2 is 95,211).
Magnesium chloride (MgCl2) has a molecular weight of 95.21 grams per mole. 11.6 grams of MgCl2 is therefore .122 moles.
hydrochloric acid + magnesium => magnesium chloride + hydrogen 2HCl + Mg => MgCl2 + H2
magnesium chloride + zinc (single displacement)
The formula and charge for the carbonate ion is CO32- and the formula and charge of the magnesium ion is Mg2+. Together they make magnesium carbonate, MgCO3.
0,355 formula units make up 33,8 g of magnesium chloride (MgCl2).
The gram formula unit mass of magnesium chloride is 95.21. Therefore, 21.2g of magnesium chloride make up 21.2/95.21 or 0.223 formula units, to the justified number of significant digits.
1997
The molar mass of magnesium chloride is 95,211 g.25,6/95,211 = 0,269
32,2 g is 0,338 from the formula unit.
Approx. 3 formula units (the molar mass of the anhydrous MgCl2 is 95,211).
12.2/95.211 = .1281 moles MgCl2. .1281 x 6.022x1023 = 7.7177x1022 molecules
Magnesium chloride (MgCl2) has a molecular weight of 95.21 grams per mole. 11.6 grams of MgCl2 is therefore .122 moles.
Add magnesium chloride to sodium chloride and mix.
Magnesium Chloride
It makes magnesium chloride.
molar mass of MgCl2=95.211g/mol mol=mass/molar mass=34.8g*mol/95.211g=0.3655039859molMgCl2 #of anything=mol*Avogadro's#=0.3655mol*6.022*1023formula units/mol answer= 2.20*1023