The relative molecular mass of magnesium chloride is approximately 60. The molar mass is therefore 60g per mole. Therefore there is 0.42mol of formula units in 2.5 grams.
The formula mass of MgCl2 is 24.3 + 2(35.5) = 95.3Amount of MgCl2 = 2.5/95.3 = 0.0262mol
There are 0.0262 moles of formula unit in 2.5 grams of magnesium chloride.
To get the number (not in moles), multiply the amount in moles by the Avogadro's constant.
The formula mass of MgCl2 is 24.3 + 2(35.5) = 95.3Amount of MgCl2 = 2.5/95.3 = 0.0262mol
There are 0.0262 moles of formula unit in 2.5 grams of magnesium chloride.
To get the number (not in moles), multiply the amount in moles by the Avogadro's constant.
The relative molecular mass of magnesium chloride is approximately 60. The molar mass is therefore 60g per mole. Therefore there is 0.42mol of formula units in 2.5 grams.
0,355 formula units make up 33,8 g of magnesium chloride (MgCl2).
formula units
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.
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.
0,355 formula units make up 33,8 g of magnesium chloride (MgCl2).
formula units
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
Magnesium chloride (MgCl2) has a molecular weight of 95.21 grams per mole. 11.6 grams of MgCl2 is therefore .122 moles.
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).
No: Each "mole", more precisely called "formula mass", of sodium chloride contains two ions, as shown by its formula NaCl, but each formula mass of magnesium chloride has three ions as shown by its formula MgCl2. This is true because sodium cations have only one positive electric charge unit, magnesium cations have two electric charge units, and chloride ions have one negative electric charge unit each.
12.2/95.211 = .1281 moles MgCl2. .1281 x 6.022x1023 = 7.7177x1022 molecules
A same number.
1 mole NaCl = 58.443g NaCl = 6.022 x 1023 formula units NaCl 3 x 1025 formula units NaCl x 1mol NaCl/6.022 x 1023 formula units NaCl x 58.443g NaCl/mol NaCl = 2911g NaCl = 3000g NaCl (rounded to 1 significant figure)