How many grams are there in 2.5 mol MgCl2?
To determine the number of grams in 2.5 mol of MgCl2, you need to know the molar mass of MgCl2. The molar mass of MgCl2 can be calculated by adding up the atomic masses of each atom present in the compound.
The atomic masses of magnesium (Mg), chlorine (Cl), and chlorine (Cl) are 24.31 g/mol, 35.45 g/mol, and 35.45 g/mol, respectively.
MgCl2 consists of one Mg atom and two Cl atoms. Therefore, the molar mass of MgCl2 can be calculated as follows:
Mg: 1 * 24.31 g/mol = 24.31 g/mol
Cl: 2 * 35.45 g/mol = 70.90 g/mol
Molar mass of MgCl2 = 24.31 g/mol + 70.90 g/mol = 95.21 g/mol
Now, to find the number of grams in 2.5 mol of MgCl2, you can use the conversion factor:
2.5 mol MgCl2 * 95.21 g/mol = 238.03 grams of MgCl2
Therefore, there are 238.03 grams in 2.5 mol of MgCl2.
To determine the number of grams in 2.5 mol of MgCl2, you need to use the molar mass of MgCl2.
The molar mass of MgCl2 can be calculated by adding up the atomic masses of each element in the compound. The atomic masses can be found on the periodic table.
Mg (magnesium) has an atomic mass of approximately 24.31 g/mol, and Cl (chlorine) has an atomic mass of approximately 35.45 g/mol. Since there are two chlorine atoms in MgCl2, we multiply the atomic mass of chlorine by 2.
So the molar mass of MgCl2 can be calculated as follows:
Molar mass = (atomic mass of Mg) + (atomic mass of Cl x 2)
Molar mass = 24.31 g/mol + (35.45 g/mol x 2)
Molar mass = 24.31 g/mol + 70.90 g/mol
Molar mass = 95.21 g/mol
Now that we know the molar mass of MgCl2 is 95.21 g/mol, we can calculate the mass in grams for 2.5 mol of MgCl2.
Mass in grams = molar mass x number of moles
Mass in grams = 95.21 g/mol x 2.5 mol
Mass in grams = 238.03 g
Therefore, there are 238.03 grams in 2.5 mol of MgCl2.
2.5 times the mole wt of MgCl2.
So, get out your periodic table, add up the atomic weights of Mg and 2 Cl's, and then multiply by 2.5