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How many atoms of cobalt are present in a 56.7 mg sample of rock that contains 56.7 percent of cobaltic oxide?
Assuming that cobaltic oxide is the only cobalt-containing constituent of the rock, the mass of cobaltic oxide in the rock is 56.7(0.567) or 32.149 mg. The formula of cobaltic oxide is Co2O3 and its gram formula mass is 165.86. The formula shows that each formula unit contains 2 atoms of cobalt. The amount of 32.149 mg corresponds to (32.149 X 10-3)/165.86 or 1.938 X 10-4 formul units of cobaltic oxide. The number of atoms in this mass is therefore Avogadro's Number X 2 X 1.9438 X 10-4 or 2.34 X 1020 atoms of cobalt, to the justified number of significant digits.
What is the formula for Nickel Chloride Hexahydrate?
The chemical formula for Nickel Chloride Hexahydrate is NiCl2•6H2O.
What is the formula for cobalt oxide?
The molecular formula is CoO Cation is Co^2+^Anion is O^2-^or in other wordscobalt(II) oxide = CoO = Co2+ + O2-
What is the chemical formula of zinc nitrate hexahydrate?
The chemical formula of zinc nitrate hexahydrate is Zn(NO3)2·6H2O.
Chemical formula of nickelous nitrate hexahydrate?
What is ;nickelous' , if you mean 'nickel nitrate. The the formula is Ni(NO3)2, 6H2O.
What is CoBr3 6H2O compound?
cobaltic bromide hexahydrate
How many atoms of cobalt are present in a 56.7 mg sample of rock that contains 56.7 percent of cobaltic oxide?
Assuming that cobaltic oxide is the only cobalt-containing constituent of the rock, the mass of cobaltic oxide in the rock is 56.7(0.567) or 32.149 mg. The formula of cobaltic oxide is Co2O3 and its gram formula mass is 165.86. The formula shows that each formula unit contains 2 atoms of cobalt. The amount of 32.149 mg corresponds to (32.149 X 10-3)/165.86 or 1.938 X 10-4 formul units of cobaltic oxide. The number of atoms in this mass is therefore Avogadro's Number X 2 X 1.9438 X 10-4 or 2.34 X 1020 atoms of cobalt, to the justified number of significant digits.
What is the formula for Nickel Chloride Hexahydrate?
The chemical formula for Nickel Chloride Hexahydrate is NiCl2•6H2O.
What is the formula for cobalt oxide?
The molecular formula is CoO Cation is Co^2+^Anion is O^2-^or in other wordscobalt(II) oxide = CoO = Co2+ + O2-
What is the chemical formula of cobaltic acetate?
Formula: Co(CH3COO)3
What is the formula for silver acetate hexahydrate?
CH3COOAg.6H2O
What is the chemical formula of zinc nitrate hexahydrate?
The chemical formula of zinc nitrate hexahydrate is Zn(NO3)2·6H2O.
What does the chemical formula MgCl26H2O stand for?
MgCl2.6H2O is the chemical formula of magnesium chloride hexahydrate.
Chemical formula of nickelous nitrate hexahydrate?
What is ;nickelous' , if you mean 'nickel nitrate. The the formula is Ni(NO3)2, 6H2O.
When colbalt chloride unties with water to form hexahydrate its formula is written CoCL2 6H2O?
Yes, CoCl2 * 6H2O is the hexahydrate of the an hydrate CoCl2.
What is the chemical formula of nickel chloride hexahydrate?
The chemical formula of nickel chloride hexahydrate is NiCl2·6H2O. It consists of one nickel ion (Ni^2+), two chloride ions (Cl^-), and six water molecules (H2O).
What is the formula for Iron chloride hexahydrate?
The chemical formula for iron(III) chloride hexahydrate is FeCl3•6H2O. This compound contains one iron atom, three chloride ions, and six water molecules.
