Sodium Definition and 215 Threads

What combination of these might produce a brown solid? For talking's sake...

is the following reaction right? 2 NaHSO3 + Zn → Na2S2O4 + Zn(OH)2 because i tried this reaction but i m not getting any Na2S2O4. I got this reaction in wikipedia. And i found another reaction in the net which is following: 2 NaHSO3 + H2SO3...

i know that sodium react with hydrochloric acid to form sodium chloride and(according to what i readed) free hydrogen. but i also readed in wikipedia that sodium hydride is made by the direct reaction of liquid sodium with hydrogen. so sodium hydride can be formed in good proportion by passing...

Homework Statement Hello, I missed a lab before the break because I was really sick and I need help. I was given the data from my partners for the titration lab and I don't understand how to calculate the amount of potassium hydrogen phthalate used in each trial, amount concentration of the...

What would be the reducing reaction for these in water?

So I just finished my chemistry homework and was going through my answers and googling them to learn more about them. I got to sodium fluoride and I already knew it was that stuff dentists put on your teeth and that it wasn't to good for you. I read that it has some advantages like preventing...

Homework Statement Net ionic equation for sodium bromide and chlorine water with mineral oil 2. None 3. The Attempt at a Solution Br-aq + Cl-aq → Br-aq + Cl-aq or Br-aq + Cl2aq → Br2aq + Cl-aq Not sure if a halogen in water is an ion or not and can't seem to find good information online...

Homework Statement Calculate the number of sodium ions entering a non-myelinated axon during the action potential, per metre of axon length. The change in potential is 100 mV, the axon membrane capacitance per unit length is 3 × 10−7 F/m, and the charge on an ion is 1.6 × 10−19 C. What...

does sodium bicarbonate react with copper hydroxide in water ? what is the equation?

I buy pure sodium fom laptory store it looks white and powder like a sugar. ...I putted in water and doest burn...is this sodium

In terms of structure

According to my chemistry textbook, the I- ion is discharged at the anode. Yet, according to standard electrode potential values, the OH- ion should be discharged at the anode. Thoughts on this please?

Homework Statement I want to calculate the average force and acceleration on an sodium atom, if a laser bundle shines on it which has I>>>> I(sat). I(sat) is the saturation intensity of the 589nm 3s-3p transition in sodium. 3p lives 16 ns Homework Equations c = 3 * 10 ^ 8 m...

Hello everybody ,A friend of mine told me that best way (The most accurate) to do this is grating diffraction experiment , What u think? Thanks in advance

Hello everyone , I googled for it but nothing came up, Where can I find that? Thanks in Advance ,

i am actually calculating the nuclear spin of Sodium 23. Here we have 11 protons and 12 neutrons. Now both the nuclei are short of the magic numbers. When I use the shell model for protons and neutrons separately, I found 3 protons in the 1d5/2 sub-shell and 4 neutrons in the same 1d5/2...

3. In an experiment, 2.00M sodium hydroxide solution was added to 20.0mL of 1.00M sulphuric acid until the acid was just completely neutralized. What is the concentration of sodium sulphate in the resultant solution? My final answer is 0.500mol/l. Am i correct.

Homework Statement When sodium is dropped into water, aqueous sodium hydroxide and hydrogen gas are produced. Which of the following are correct regarding this reaction? 1) Sodium metal is the reducing agent. 2) There are no spectator ions. 3) In the balanced net ionic equation, all...

Does sodium ion effect electrolysis of water? Especially in sodium polyacrylate, which release sodium ion when absorbs water. In other words, if I try to do electrolysis of water in hydrated sodium polyacrylate will it be successful.(Produce hydrogen and ignoring bubble trap inside the gel)...

1. Homework Statement I have a solution containing both mono basic (480mg/ml) and dibasic (180mg/ml) sodium phosphate. How do I determine the total mass of phosphorus per ml of the entire solution? 2. Homework Equations ? 3. The Attempt at a Solution Monobasic sodium phosphate...

There are many similarities between Sodium and Potassium in nature. What about Sodium Tolyltriazole and Potassium Tolyltriazole? And what about the uses of them?

I want a small amount of benzene. Obviously it is not easily purchasable, but sodium benzoate is. I have heard one way is to dry distil sodium benzoate and sodium hydroxide, but the though of dealing with molten sodium hydroxide at such high temperatures sounds too dangerous. Is there any other...

Sodium carbonate will not decompose in the presence of heat. This is because sodium is a very reactive metal, and hence forms very strong bond with the carbonate ion. In contrast, aluminium is not as reactive as sodium. Hence the bond by aluminium is weaker, and aluminium carbonate will...

Can anybody tell me how to convert phenyl acetic acid to sodium phenyl acetate. thanks.

Homework Statement State whether ionization is an endothermic or an exothermic process. The Attempt at a Solution I know what exothermic and endothermic mean, and I know that the answer is that ionization of sodium is an endothermic process, but I don't know why and I'm hoping someone can...

Hello, I am confused, when putting in the anhydrous salts, why is it that you stop putting it in until clumping stops and it freely moves in the solution?

I've looked at this website so many times and have been saved by it! Now I need a lil help please! I can finish all the calculations and balance it myself if I can just get the equation! Homework Statement Sodium chloride is placed in a solution of Potassium iodide. What products are...

I was thinking how it is possible to obtain carbon dioxide capturing it from the atmosphere and releasing it from the solution. I've read that "air meets a mist of a sodium hydroxide solution...the carbon dioxide is absorbed by reaction to form sodium carbonate...this solution is pumped into an...

I've learned the trends in electronegativity, but why is fluorine more electronegative than sodium? What is the real reasoning behind it?

Hi there :) I have 10g of NaOH whit 1 liter of water for photo etching Solution is one year old, and do i need to make new one (is there a lifespan of solution) ? If yes how to dispose it safely ? (can it be disposed in regular drain ?) thanks for your time :)

Ok, quick question. I know that baking soda is great for heartburn, but why is it in certain medicines, they have sodium bicarb AND citric acid powder? My wife actually uses those two compounds to make bath fizzies. She adds esentual oils to them for health benefits and smells. haha. Anyway...

Homework Statement Would sodium salicytate dissolve in any of the following solvents? Water Diethyl Ether 6% HCL 6% sodium bicarbonate 6% Sodium Hydroxide (naoh) You don't have to but please explain your guess too. Thanks a lot. Homework Equations The Attempt at a Solution I think it...

My question is: Why the energy levels for sodium are different from those for hydrogen even though sodium is described as a "hydrogen-like atom"? Here I have posted the energy diagrams for sodium, and hydrogen. So, I have noted that sodium has 11 protons, whereas the hydrogen has only 1...

Homework Statement What salt is produced from sodium bicarbonate and citric acid? Just to be clear, this isn't actually homework. I would hope no professor would ever be so hard. I'm not even in chemistry. Although I did take it last year in high school. Homework Equations I really...

what is the relation between Specific Heat and Absolute Temperature of any material ? Specifically, Sodium. Cp vs T ( not the change in temperature) Any mathematical formula ? Thanks

I need someone to tell me if I did this right... What volume of 10N NaOH should be added to 0.1L of 1 M sodium acetate pH 5.5 to change the pH to 6.0. so I'm assuming that there is also an amount of acetic acid in this solution for it to have an acidic pH right? So is it a buffer? In which...

Hello again forum! I'm doing a few experiments at home with a protonated saline solution and need some assistance. What is the reaction between the hydronium ion and sodium chloride. I think it's: H30(+) + NaCl => H2 + H(+) + NaOH but I'm not sure. :confused: Any advice would be great...

hi guys, How can I prepare 20 mM sodium phosphate buffer (pH 6.9) containing 10 mM NaCl ? I mean how many grams of sodium dihydrogenphosphate, disodium hydrogenphosphate and sodium chloride are needed for 1 L of buffer solution. The buffer solution is prepared at room temperature (25C) and...

I just made some sodium acetate trihydrate at home and I would like to make it into sodium acetate anhydrous. Sorry if this is a stupid question but I am new to chemistry and I love it.

I have a large exam tomorrow in chemistry and know how to do most problems on my practice test except these two If the solubility of sodium sulfite (Na2SO3) is 27(g/100g water) at 20 degrees celcius, what is the mass percent concentration of the saturated solution of Na2SO3 at 20 degrees...

A person suffering from Hypothermia has a sodium ion concentration in the blood of 0.114 M and a total blood volume of 5.1 L. What mass of sodium chloride needs to be added to the blood to bring sodium ion concentration up to 0.139 M? (assuming no change in blood volume)...

is it possible to extract sodium hydroxide from liquid soap? i need to test the sodium hydroxide. if it is possible, how would i do it?

i'm doing a task to find the amount of sodium hydroxide (NaOH) in a liquid soap. i have to use titration in it. how exactly would I do this? thanks

Homework Statement "Plan how to make 100mL of a buffer solution with a pH of 10.8 to be made using only sodium carbonate, sodium hydrogen carbonate and water" Homework Equations pH= pKa+ log(CO32-)/(HCO3-) The Attempt at a Solution I tried rearranging it, but I'm not sure what to do...

Why do sodium and potassium form peroxides and superoxides when they burn?

Hello, just wondering what would be produced when chloramine and dichloramine is introduced to sodium carbonate. In a reaction including dichloramine I can't decide whether the reaction would proceed as the following: NHCl2 + Na2CO3 ---> 2NaCl + CO2 + NO + H Or NHCl2 + NaCO3 ---> NaCl...

I was attempting this question where I had to say which, out of graphite, diamond and sodium chloride represent a giant molecular structure? The answer is only the first two. Why is the latter excluded?

Homework Statement Im supposed to predict what will happen if I add Na2C2O4 to hard water, soft water, or distilled water. Hard water has Mg2+ and Ca2+ ions dissolved in it from calcium bicarbonate/carbonate and magnesium bicarbonate/carbonate. It's a theoretical lab where we predict what...

Hello everyone, Today I witnessed the titration of a sodium pentobarbital solution with 0.1M HCl. At first, a lot of white precipitate was formed. When more HCl was added the white precipitate disappeared again completely. Now I am trying to figure out what is going on. As I understand it...

Homework Statement Hi, I did a lab where benzophenone was dissolved in ethanol and reacted with sodium borohydride (NaBH4) and chromatography was done on the reaction at different points in time. There was no HCl work up of this though. When I developed the TLC (silica) plate, it looked like...