3 moles of (ClO4)3- and 1 mol Al
Aluminium perchlorate is Al)CLO4)3.10H2O.
Steps to take: Write the chemical formula : Al2O3 Calculate the number of moles for aluminum oxide. You should know the formula which is the mass given (0.051g) divided by the Mass of aluminum oxide. Since there is '2' moles of Aluminium you multiplly the number of moles calculated for aluminum oxide by 2. Then you have calculated the number of Ions.
A neutral solution of about 7 pH.
2 moles of Ca and 4 moles of OH
the equivalence point has been reached
5,7 moles (SO4)3-.
0,6 moles of (ClO4)3- and 0,2 mol Al
Steps to take: Write the chemical formula : Al2O3 Calculate the number of moles for aluminum oxide. You should know the formula which is the mass given (0.051g) divided by the Mass of aluminum oxide. Since there is '2' moles of Aluminium you multiplly the number of moles calculated for aluminum oxide by 2. Then you have calculated the number of Ions.
The formula for aluminum oxide is Al2O3, which means that, if aluminum oxide is ionically bonded, every formula mass of aluminum oxide contains three O-2 ions. In this instance, 0.65 formula masses of aluminum oxide would contain 3 X 0.65 or 1.95 moles of O2-. If aluminum oxide were covalently bonded, it would not contain any O-2 ions.
aluminium chloride is a compound which has one Al3+ ion and three Cl- ions per molecule.
The chlorate anion is ClO3^-The perchlorate anion is ClO4^- So, the difference is that perchlorate has ONE MORE oxygen than chlorate
Aluminum chloride contains 3 chlorine atoms per molecular unit. Therefore, in 3 moles there are 3 times Avogadro's number of chloride ions = 1.807 X 1024.
0.00833 moles of CO3
I suppose that the answers are: - 0,9 moles aluminium ions - 2,7 moles chloride ions
n = 5.670�10�3 molCl� the molar formula appears above.
There are 2.8604 moles of ammonium ions in 6.955.
3(2.6) = 7.8 moles of ions
The formula shows that 2 aluminum atoms are present in each formula unit, which is, for ionically bonded compound, the alternative to "molecule" for a covalently bonded compound. The formula unit for aluminum itself is generally considered to consist of single atom. Therefore, 0.5 mole of the compound will contain 1.00 moles of aluminum.