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How many grams of cobaltII fluoride CoF2 must be dissolved to prepare 100 mL of a 0.210 M aqueous solution of the salt?
Wiki User
∙ 10y ago
So you need 0.21 moles in every litre. You however, have only 100ml, so divide 0.21 by 100, and multiply by 100 to get the moles required. This gives you 0.021 moles. moles by molecular weight gives grams. With a m wt of 96.93g/mol, this gives 2.0355g that needs to be weighed out.
Wiki User
∙ 10y ago
To calculate the mass of CoF2 needed, you would use the formula:
mass = molarity x volume x molar mass
First, convert the volume from mL to L by dividing it by 1000: 100 mL ÷ 1000 = 0.1 L. Then, substitute the values into the formula: mass = 0.210 M x 0.1 L x (cobalt's Atomic Mass + 2 x fluorine's atomic mass). Calculate the mass using the respective atomic masses of cobalt and fluorine.
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What does aqueous mean in chemistry?
An aqueous solution is formed when a substance is dissolved in water. The latin for water is 'aqua' - hence the word 'aqueous'.A solution in which water is the primary solvent.
What is an aqueos solution?
An *aqueous* solution is formed when a substance is dissolved in water. The term "aqueous" stands for the latin word "aqua" which means water.
What is dextrotatory and lavorotatory solution?
One was dextrorotatory when dissolved in aqueous solution, the other was levorotatory.
What is a solution when water is the solvent?
When chemical substances are dissolved in water, this is called an aqueous solution.
What is the appearance of sugar and salt when dissolved?
They are invisible when in an unsaturated, aqueous solution.
What is a aqueous solution?
An aqueous solution contain a solute dissolved in water.
What does aqueous mean in chemistry?
An aqueous solution is formed when a substance is dissolved in water. The latin for water is 'aqua' - hence the word 'aqueous'.A solution in which water is the primary solvent.
What will be the initial solution if a crystal was added to an aqueous solution and was dissolved in the solution?
supersatureated
What is an aqueos solution?
An *aqueous* solution is formed when a substance is dissolved in water. The term "aqueous" stands for the latin word "aqua" which means water.
Is Hydrogen fluoride anhydrous the same as Hydrofluoric Acid?
No. Hydrofluoric acid is aqueous hydrogen fluoride (dissolved in water). Hydrogen fluoride will form hydrofluoric acid when it comes in contact with water.
What is the appearance of salt when dissolved?
It is invisible when in an unsaturated, aqueous solution.
What is the appearance of dissolved salt?
It is invisible when in an unsaturated, aqueous solution.
What is dextrotatory and lavorotatory solution?
One was dextrorotatory when dissolved in aqueous solution, the other was levorotatory.
What is a solution when water is the solvent?
When chemical substances are dissolved in water, this is called an aqueous solution.
What is the appearance of sugar and salt when dissolved?
They are invisible when in an unsaturated, aqueous solution.
What does the state symbol aq mean when written after a chemical compound in a chemical reaction?
'Aq' in chemistry is an abbreviation of the word 'Aqueous' meaning dissolved in solution. The opposite of aqueous is 'Anhydrous' meaning not in solution. Example | You can dissolve anhydrous citric acid into a beaker of distilled water, which would make an aqueous solution of citric acid.
What does aqueous and non-aqueous solvent mean?
A non-electrolyte solution is one in which there are no charged particles dissolved in the solution.For example:Sodium chloride will form an electrolyte solution in water because the sodium ions and chloride ions dissociate when dissolved in water.NaCl(s) + H2O --> Na(aq)++ Cl(aq)-Sucrose will form a non-electrolyte solution in water because no charged particles will dissociate in the solution.C12H22O11(s) + H2O --> C12H22O11(aq)The sucrose is not chemically changed, it's just dissolved in the water, forming a sucrose solution.*(aq) means aqueous (dissolved in water)
