Sodium Definition and 221 Threads

How is excess sodium in the diet linked to obesity and high blood pressure?

can some tell me what exactly it is? like pesticide or something? a littleabout the properties would be nice thanks :D

Pleez Help Me! when a solution of sulphuric acid was standardised the following results were obtained. exactly 5.3g of pure anhydrous sodium carbonate were dissolved in wter and made up to 250cm3 of solution. 25cm3 of this solution were neutralised by 20cm3 of the acid. calculate the molarity...

Liquid sodium can exist at room temperature at EXTREMELY high pressures. Why?

Is there any way that i can extract magnessium from magnessium sulfate and sodium metal from salt Inside the house.

Sodium vapor lamps are widely used for lighting public areas such as parking lots by emiting 589 nm yellow light. a. how much energy is emitted by one excited sodium atom when it generates a photon? b. How much energy is emitted when 1.00 mole of sodium atoms each generate a photon? Can...

After an action potential has passed the localised region enters its refractory period, and during the absolute refractory period a second impulse cannot be conducted regardless of the size of the stimulation. This is because the sodium channels cannot open immediately after closing, why is that?

I don't quite understand the explanation at wiki; What does this mean (the vaporizes bit)? the sodium turns to gas, which then glows? when it cools does it condense back to a solid when its turned off again?

I have some crystallized sodium hydroxide drain cleaner that I want to use on my bathroom sink drain, but I just put in a plastic drain and the trap is plastic as well. The clog is past the trap, somewhere deeper. So will the NaOH be alright with the plastic? Not sure exactly what kind of...

i need help with this homework question I am having problems with... Explain why the first ionization energy for sodium is much smaller than the second ionization energy for sodium.

Many reagents have potassium as the cation instead of sodium. Permanganate is always potassium permanganate. Chlorate is always potassium chlorate. Nitrate is always potassium nitrate. Iodide is potassium iodide. If potassium costs more money, why is it used in everything?

Hi all.. I have a question regarding the density of a solution. In my lab manual, it said to use 50 mL of 20% NaOH solution I have problem of understanding whether the 20% is the molar or mass or volume basis.. It doesn't state anything else in there.. what does it usually means? And i think...

The book that I have goes into very little detail about how to do these sort of problems. I know that you have to balance the equation at the end, which I can do. I do not know how to find the elements! :cry: (Besides the fact that Sodium Hydroxide is NaOH.) Can anyone help? THNX! :biggrin...

Coursework time has hit me at college and no matter how much I hit the books the answer is not hitting me. It might be simple but I can't see it. Of course, the question is needed. I had to titrate sulphuirc acid with sodium hydroxide. Not hard to write coursework on and I am sure that if...

We conducted a lab on Friday and today we have to answer a few post lab questions. I'm stuck on one question and it asks: Does sodium bicarbonate (aka Baking Soda) (NaHCO3) function as an acid or a base? What sort of condition will determine this? I know that sodium bicarbonate will...

low composition of sodium in table salt? today i went to supermarket for buying some food, and i discovered that some salt which is low amount of sodium??how can it be?as i learned from chemistry , the ratio of sodium and chloride is 1 to 1 .

Why do cells tend to mantain low internal concentrations of Na ions and high internal concentration of k ions despite the surrounding fluid being low in k ions but high in na ions?

Hey, Can sum1 help me with these two questions? How many grams of NaCl are required to make 0.30L of a 0.65mol/L soldium chloride solution? * for this question do i use the #moles = mass/molar mass? What volume os chlorine gas, measured at 10C and 101.3 kPa, is required to react...

How do we separate Sodium from a mixture of sodium chloride and water soluble impurities?

I'm having trouble with sample AP Equation writing questions such as; solid zinc hydroxide is treated with concentrated sodium hydroxide solution. The sheet my teacher provided does not cover this reaction and many others is there any material out there that tells what will happen in most reactions

Hi, I need images of absorption and emission spectra for sodium to be used in a physics student book. Thanks in advance Stanley