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What is the difference between sodium nitrate and sodium citrate?
They are two completely different substances Sodium nitrate is NaNO3, a compound of sodium, nitrogen, and oxygen. It is an inorganic salt and a strong oxidizer. It is sometimes used as a fertilizer or in black powder. There are 3 variants of sodium citrate: Monosodium citrate (NaH2C6H5O7), disodium citrate (Na2HC6H5O7), and trisodium citrate (Na3C6H5O7). All three are compounds of sodium, hydrogen, carbon, and oxygen. They are organic salts commonly used as food additives.
Equation between potassium iodate and sodium thiosulphate?
This reaction may be misunderstood as a direct reaction between the thiosulphate and iodate ions , however, in practice an iodide and acid mediated production of iodine from the iodate is used to react with the thiosulphate. A standard reaction used to calibrate a solution of sodium thiosulphate is as follows: Acid and potassium iodide are added to a solution of potassium iodate getting the following reaction: KIO3 + 5KI + 3H2SO4 = 3I2 + 3K2SO4 + 3H2O represented by the following ionic equation: IO3- + 5I- + 6H+ = 3I2 + 3H2O Thiosulpathe is titrated against this solution (effectively against iodine): I2 + 2Na2S2O3 = Na2S4O6 + 2NaI represented by the following ionic equation: I2 + 2S2O32- = S4O62- + 2I- where the dark brown coloured solution of iodine turns pale yellow and finally colourless as the reaction proceeds (starch is used as indicator after the pale yellow transition forming a black solution due to an iodine-starch complex which turns colourless upon further addition of thiosulphate).
What is color of sodium phosphate?
Sodium phosphate is a white crystalline solid that is colorless or appears as a white powder.
When copper ii hydroxide and sodium nitrate is heated?
When copper II hydroxide and sodium nitrate are heated together, they may undergo a decomposition reaction. Copper II hydroxide will decompose into copper II oxide and water, while sodium nitrate will decompose into sodium nitrite and oxygen.
What happens when you heat copper hydroxide and sodium nitrate?
When you heat copper hydroxide and sodium nitrate, a chemical reaction occurs where the copper hydroxide decomposes to form copper oxide and water, while the sodium nitrate decomposes to form sodium nitrite, oxygen gas, and nitrogen dioxide gas.
Why come again colour change after endpoint of titration of sodium thiosulphate with iodine?
The color change occurs because iodine reacts with starch to form a blue-black complex. Initially, the iodine reacts with the sodium thiosulfate until it is completely consumed, resulting in a color change from yellow to brown. Once the sodium thiosulfate is depleted, any excess iodine present reacts with the starch indicator, causing the solution to turn blue-black, indicating the endpoint of the titration.
What component of a fixer solution is found in fixer but not developer?
In Fixer you can find Sodium thiosulfate :Na2S2O3·5H2O and Ammonium thiosulfate: (NH4)2S2O3 for black and white photography, in purpose to remove unexposed silver halide.They can not be found in developer ! In Developer for black and white photography: Metol,Phenidone and Hidroquinone for purpose chemical that makes the latent image on the film or print visible!
What is the purpose of thiosulfate in the triple sugar iron agar?
Thiosulfate in the triple sugar iron agar acts as a sulfur source and helps to detect hydrogen sulfide production by bacteria. It can also serve as a reducing agent to maintain anaerobic conditions in the medium.
Why is starch solution used as indicator in Sodium thiosulphate Iodine titrations instead of phenolphthalein indicator?
Phenolphthalein is an acid base indicator - it does not show the end-point in a thiosulfate type titration. Starch gives a very sharp end-point from a blue-black to colorless end-point when titrating iodine with thiosulfate. Phenolphthalein would just not detect this change.
Why is starch used as indicator in titration of iodine with sodium thiosulfate?
Starch forms a blue-black complex with iodine, making it easy to see when the iodine has been fully neutralized in the titration. The color change is very distinct, allowing for accurate endpoint determination in the titration process.
What happens in the reaction between sodium thiosulfate and hydrochloric acid?
The reaction between H2SO4 and HCl gives you Sulphurous Acid (H2SO3). A quick test for H2SO3 is to blot filter paper with starch solution, then add iodine to give a blue/black stain. In the presence of H2SO3 this stain will be bleached.
What do you get if you mix Ag with Na2S?
There will be no reaction. It will remain a mixture.
How many chloride ions are in sodium chloride?
Well...depends who you ask :P. I guess two. Sodium Chloride is NaCl. It's an "ionic compound" which means the atoms are not covalently bonded, they actually exist as Na+ and Cl-. At this point, it's worth mentioning that an ion is any charged species. Positive or negative, they're both ions. The reason it's a bone of contention is because bonding is not black and white. Covalent or ionic...it's a sliding scale and you can't just say where one begins and the other ends. That said, it is widely accepted that NaCl is a highly ionic bond.
Is black ink a mixture or a compound?
compound
Is a black walnut tree simple or compound?
A black willow leaf is a simple leaf.
What is a compound word for back and black and card?
what are compound words for back,black and card
What is the meaning of T in Eriochrome Black - T?
The "T" in Eriochrome Black T stands for the word "Tetrasodium," indicating that this compound contains four sodium atoms in its structure. Eriochrome Black T is a complexometric indicator commonly used in analytical chemistry for the determination of metal ions.
