NaNO3(sodium nitrate)?

Question

When we write sodium nitrate,Why we write NaNO3,Why not Na2NO3?

Answer 1

NO3 ion has a valency of -1 ( i.e. O is -6 and N is 5). Thus to form a compound it combines with an ion of Na which has a valency of +1

Answer 2

Sodium Nitrate Lewis Structure

Answer 3

Let the green algae grow on everything you can stand to look at will help. Plant the tank will also help. The main thing is you are going to have to change the water to get it down. Do test your well water though, it could very well be coming from there. You may have to switch to buffered reverse osmosis water that you buy from the store if that's the case. It does seem odd that the nitrates are so high so soon. You didn't mention what the reading actually was but any nitrate reading over 20 ppm indicates you need to change water. BTW less than 50% water changes will do very little in reducing nitrate. Its a myth that changing too much water will harm your fish. Putting water too cold or too hot will affect the fish, so always keep the temperature the same. The ph should also be kept consistant through out the water change. THese are the only two things that will stress fish during a water change. Clean water at the same temp and ph will never ever harm your fish, no matter how much water you change. The beneficail bacteria live in the filter and substrate not in the water column, so changing water does not in any way hurt the biological system. So if your nitrates are sky high try a 75% water change with nitrate free water. Check nitrate levels again the next day after the water change. If they are still too high, change 75% of the water again and retest. If the nitrate is coming from your well then you are no longer going to be able to use well water. You will need 5 gallon water containers, buffering agents (don't skip them what ever you do) Plain reverse osmosis water is dangerous with out buffers, the ph will fall quickly causing acidosis. RO Right by Kent Marine will help hold PH, you should also use a ph stabilizer like Neutral Controller. There are different products out there that can make the water either neutral or alkaline. They have 7.0 and 7.5 and 8.0. There is even be something out there that holds the water to an acidic ph if your fish require that. (discus) Test your well water to see where you are starting from. When I tested the tap water here where I live I was shocked to find the Ph was over 8.0 and there was 1ppm ammonia! Talk about not good for fish! So I lug 5 gallon jugs to and from the store weekly. Reverse osmosis is plain h20 with nothing else in it. Same quality as distilled water just different process to achieve the same result. Ph of h20 is 6.8. 6.8-7.2 are considered neutral. Above 7.2 alkaline and below 6.8 acidic. Hope this helps you.

Answer 4

You have to look at the charge on each ion separately to determine why it is Na(NO3) and NOT Na2(NO3)... you can memorize the charges you do not have to go through the below steps every time... but I am putting them here so you know where the charges come from...

Na has a -1 charge this is based on the electron configuration of Na...[Ne]3s1 so there is one EXTRA electron available to be given away or shared….

When you have NO3 you have to look at each the N and the O electron configurations. Nitrogen has an electron configuration of 1s2 2s2 2p3….. O has an electron configuration of 1s2 2s2 2p4…. If you draw the Lewis structure ( valence dots) for NO3 you get one double bond between N and O and that leaves 1 missing electron so that leaves a charge of +1 for NO3…

So the combination of these two is in a 1:1 ratio. 1 missing electron from NO3 and one extra from Na to give a neutral Na(NO3) sodium Nitrate.


http://www.chemistry.wustl.edu/~edudev/LabTutorials/PeriodicProperties/Ions/ions.html
has the Lewis structure for NO3 I cant really draw that here. it also lists the common polyatomic ions and charges.

IF NO3 had been missing 2 electrons then you would have a 2:1 ratio to make the combination nuetral... you would have needed two Na extra electrons to fill the 2 missing electrons...that would have given you Na2(NO3)

Answer 5

Sodium nitrate (not to be confused with sodium nitrite) is a type of salt (NaNO3) which has long been used as an ingredient in explosives and in solid rocket propellants, as well as in glass and pottery enamel, and as a food preservative (such as in hot dogs), and has been mined extensively for those purposes. It is also variously known as caliche, Chile saltpeter, saltpeter, and soda niter.

Answer 6

Because you switch the charges of the two to get how many there are. Na and (NO3) both have a charge of -1, so there is no 2.

Answer 7

There is only one sodium ion in that molecule... where did you get the 2?

Answer 8

hey its sodium nitrate not nitrite . nitrate is ( NO3) - dat is (-1 charge).