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What is the ion responsible for the color change when adding copper sulfate to ammonium hydroxide?
Wiki User
∙ 8y ago
The deep blue colour of the resulting solution is due to the cuprammonium ion, more formally the hexaamminecopper(II) ion.
Its formula is [Cu(NH3)6]2+
where the numbers inside the brackets should be subscripts, and the 2+ should be a superscript.
Wiki User
∙ 8y ago
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How do you make copper hydroxide?
Copper(II) hydroxide can be produced by adding a small amount of sodium hydroxide to a dilute solution of copper(II) sulfate (CuSO4 · 5H2O). The precipitate produced in this manner, however, often contains water molecules and an appreciable amount of sodium hydroxide impurity. A purer product can be attained if ammonium chloride is added to the solution beforehand. Alternatively, copper hydroxide is readily made by electrolysis of water (containing a little electrolyte such as sodium bicarbonate). A copper anode is used, often made from scrap copper.
How can sodium sulphate be made?
The easiest way of making sodium sulfate solution is by adding sulfuric acid to sodium hydroxide. If the pure material is required, then evaporate the water off.
What is the difference between ammonia and anhydrous ammonia and ammonium hydroxide?
Anhydrous ammonia is really just ammonia in fact. "Anhydrous" means without water, and anhydrous ammonia is just pure ammonia without water.It is to distinguish it from ammonia in water solutions because when added to water ammonia forms ammonium hydroxide:NH3 + H2O ---> NH4+ + OH-Ammonium hydroxide is frequently referred to as ammonia because you make it by adding ammonia to water, but it isn't really ammonia. It is much more commonly though because it is easier to handle (ammonia is a gas).See the Web Links for more information about ammonia.
What is CaOH?
Calcium hydroxide, commonly known as limewater, it is made by adding CaO to H2O
Can I lower the pH of sodium hydroxide with water?
Yes. Adding water to a solution of sodium hydroxide will dilute the NaOH and lower the pH.
How do you make copper hydroxide?
Copper(II) hydroxide can be produced by adding a small amount of sodium hydroxide to a dilute solution of copper(II) sulfate (CuSO4 · 5H2O). The precipitate produced in this manner, however, often contains water molecules and an appreciable amount of sodium hydroxide impurity. A purer product can be attained if ammonium chloride is added to the solution beforehand. Alternatively, copper hydroxide is readily made by electrolysis of water (containing a little electrolyte such as sodium bicarbonate). A copper anode is used, often made from scrap copper.
How can sodium sulphate be made?
The easiest way of making sodium sulfate solution is by adding sulfuric acid to sodium hydroxide. If the pure material is required, then evaporate the water off.
What is the percent of nitrogen in ammonium sulfate?
The chemical formula of Ammonium sulfate is (NH4)2SO4. The first step to these problems is finding all the atomic weights of the elements involved (including how many atoms of each element there is) and then adding them all up to get the total molecular mass of ammonium sulfate.Nitrogen = 14.0 × 2 = 28.0 gramsHydrogen = 1.00 × 8 = 8.00 gramsSulfur = 32.1 gramsOxygen = 16.0 × 4 = 64.0 grams-------------------------------------------Ammonium sulfate = 132.1 gramsThen to figure out the percentage of nitrogen in the compound, take the total mass of nitrogen and divide it by the total mass.Mass of nitrogen ÷ mass of ammonium sulfate = % nitrogen28.0 ÷ 132.1 = .212 = 21.2% nitrogen in ammonium sulfate(NH4)2SO4Percentage nitrogen by mass=(Molar mass of nitrogen)/(Molar mass of ammonium sulfate)*100In ammonium sulfate there are 2 Nitrogens, 8 Hydrogens, 4 Oxygens and 1 Sulfur, and their molar masses are 14, 1, 16 and 32 respectively. So, by dividing the molar mass of nitrogen in the compound by the total molar mass of the compound and multiplying it by one hundred we get the percentage of nitrogen.(14*2)/(14*2+1*8+16*4+32)*100= 21.2121...=21%
CAN you Make epsom salt?
"Epsom salt" is a term fro magnesium sulfate (MgSO4), and there are numerous ways to make it. The easiest is probably adding sulfuric acid to magnesium hydroxide, which forms magnesium sulfate and water: H2SO4 + Mg(OH)2 ---> MgSO4 + 2H2O
How do you make sodium chromate?
Chromic acid and ammonium hydroxide react to yield ammonium dichromate followed by crystallization to yield a pure crystalline product. H2Cr2O7 + 2NH4OH ==> (NH4)2Cr2O7 + 2H2O Reactions with the dichromate ion should be avoided if possible due to the toxicity and possible carcinogenic nature of hexavalent chromium. Groundwater contamination with hexavalent chromium was the subject of the Hollywood movie Erin Brockovich.
What is the difference between ammonia and anhydrous ammonia and ammonium hydroxide?
Anhydrous ammonia is really just ammonia in fact. "Anhydrous" means without water, and anhydrous ammonia is just pure ammonia without water.It is to distinguish it from ammonia in water solutions because when added to water ammonia forms ammonium hydroxide:NH3 + H2O ---> NH4+ + OH-Ammonium hydroxide is frequently referred to as ammonia because you make it by adding ammonia to water, but it isn't really ammonia. It is much more commonly though because it is easier to handle (ammonia is a gas).See the Web Links for more information about ammonia.
A chemical reaction occurs between sodium hydroxide and hydrogen chloride Adding more sodium hydroxide to the reaction causes it to speed up If you add more of a reactant such as sodium hydroxide?
A chemical reaction occurs between sodium hydroxide and hydrogen chloride. Adding more sodium hydroxide to the reaction causes it to speed up. If you add more of a reactant, such as sodium hydroxide, can it be considered a catalyst? Why or why not?
What is CaOH?
Calcium hydroxide, commonly known as limewater, it is made by adding CaO to H2O
Can I lower the pH of sodium hydroxide with water?
Yes. Adding water to a solution of sodium hydroxide will dilute the NaOH and lower the pH.
How to separate ammonia and hydrogen chloride?
Ammonia and hydrogen chloride can be separated based on their differing acid/base properties. A mixture of these gases will form a solid salt, ammonium chloride. By adding a strong base, such as sodium hydroxide, the ammonium ion will be deprotonated, giving ammonia, sodium chloride, and water. Heating the mixture will then separate the ammonia from the chloride ion, which is trapped as a salt. Adding sulfuric acid to the sodium chloride and heating will regenerate the hydrogen chloride. Note that water will also distill with the products.
Is adding water to heated copper sulfate crystals chemical or physical?
chemical
What is produced by adding HCl and Sodium hydroxide?
HCl (Hydrochloric acid) reacts with sodium hydroxide to produce sodium chloride (salt) and water.
