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How many formula units make up 23.2 g of magnesium chloride (MgCl2)?
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What type of intermolecular force does NaCl have?
Sodium chloride "formula units" form a very large lattice.
How much magnesium sulphide can be made from 1.0gram of magnesium and 1.0gram of sulphur?
The formula of magnesium sulphide is MgS, showing that a formula unit has one atom of each element. The gram atomic mass of magnesium is 24.305 and that of sulphur is 32.06. Therefore, when magnesium and sulphur are present in equal amounts by mass, sulphur is the limiting reactant. 1.0/32.06 or 0.031 moles of sulphur atoms are present. Therefore, the maximum amount of MgS that can result from reaction is 0.031 formula units of MgS. The gram formula mass of MgS is 56.365, so that 0.031 formula units of MgS will have a mass of 1.7 grams, to the justified number of significant digits.
How many grams of lead 2 chloride can be produced from 14.6 liters of chlorine gas at STP and 285 milliliters of 0.250 molarity lead 2 nitrate?
The formula unit for lead (II) chloride is Pb(NO3)2. This formula shows that each formula unit contain one lead (II) ion. By the definition of molarity, a liter of a 0.250 molar solution of lead (II) nitrate therefore contains 0.25 gram formula units of lead (II) ions per liter of solution, so that 250 milliliters of such a solution will contain 250/1000 of this amount, or 0.0625 gram formula units. Assuming that chlorine is an ideal gas, 22.4 liters of it at STP contain one mole. Since gases are homogeneous, 14.6 liters of it will contain 14.6/22.4 or 0.652 moles. The formula of gaseous chlorine at STP is Cl2. Therefore, 0.652 moles of it contain twice this number of chlorine atoms, or 1.305 "moles" of such atoms. The formula unit for lead (II) chloride is PbCl2. Therefore, each gram formula unit of lead (II) requires two gram formula units of chloride ions. Comparison shows that there is a large excess of chlorine over that required to form lead (II) chloride from the 0.0625 gram formula units of lead (II) contained in the specified amount of solution. Lead (II) is therefore the limiting reagent in this combination, and 0.0625 gram formula units of PbCl2 can be produced. The gram atomic mass of lead is 207.2 and that of chlorine is 35.453. Therefore, the mass of lead (II) chloride that can be produced is 0.0625[207.2 + 2(35.453)] or 17.4 grams, to the justified number of significant digits.
How many formula units of salt make up 10 moles?
10 formula units
What is the difference in atomic mass of iodine and magnesium?
Iodine is 127 and Magnesium is 24 so the difference is 103 atomic mass units.
How many formula units make up 33.8 g of magnesium chloride (MgCl2)?
0,355 formula units make up 33,8 g of magnesium chloride (MgCl2).
How many formula units make up 32.0 g of magnesium chloride (MgCl2)?
Approx. 3 formula units (the molar mass of the anhydrous MgCl2 is 95,211).
How many formula units make up 25.6 g of magnesium chloride (MgCl2)?
The molar mass of magnesium chloride is 95,211 g.25,6/95,211 = 0,269
How many formula units make up 32.2 g of magnesium chloride (MgCl2)?
32,2 g is 0,338 from the formula unit.
How many formula units make up 11.6g of mgcl2?
Magnesium chloride (MgCl2) has a molecular weight of 95.21 grams per mole. 11.6 grams of MgCl2 is therefore .122 moles.
What is the mass of 6.80 moles of magnesium chloride MgCl2 express the value and units?
6,8 x 95,211 g (molar mass of anhydrous MgCl2)The mass of 6.80 moles of magnesium chloride or MgCl2 is 647,435 g.
How many formula units are there in 2.5 grams of Magnesium Chloride?
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 = 0.0262molThere 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.
How many formula units make up 12.2g of magnesium chloride?
12.2/95.211 = .1281 moles MgCl2. .1281 x 6.022x1023 = 7.7177x1022 molecules
Is MgCI2 a molecule?
MgCI2 does not exist. The formula is MgCl2 with a lowercase L. This compound is ionic.
The formula for an ionic compound such as magnesium chloride is expressed in terms of?
formula units
How many formula units make up 21.2g of magnesium chloride Mg Cl 2?
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.
Does 1 mole of sodium chloride and 1 mole of magnesium chloride has same number of ions?
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.
