Silver Definition and 126 Threads

Good evening, I just have a quick question regarding the potential uses of colloidal silver as a cure for many types of pathogens. It is my understanding that colloidal silver can kill about 600 different types of bacteria/viruses based on many in-vitro studies. Despite its potential benefits...

I am quite confusing about the concept of electroplating of silver. As what I know, the silver anode gives out Ag+ while the Ag+ in the silver nitrate solution deposits on the cathode (e.g. a spoon). However, why the Ag(s) on the silver anode is preferentially discharged instead of the OH-...

I was recently asked why the iron in our blood wasn't killing us while iron is poisonous to the body; and what would be if it was other metals than iron in our blood, what would happen?

Let's say I have a mixture of silver and aluminum metal, and I just want the silver metal. How do I just get the silver metal and get rid of the aluminum? Also, if I have silver metal and I want to make silver nitrate, what molarity HNO3 should I add?

Homework Statement A sample of AgCl was treated with 5ml of 2M Na2CO3 solution to produce Ag2CO3. The remaining solution contained 0.003 g of Cl- per litre. Calculate the solubility product of AgCl.(Ksp of Ag2CO3 = 8.2 ×10-12) Homework Equations ksp of AgCl = [Ag+]×[Cl-] ksp of Ag2CO3 =...

Today, it was revealed in Scandinavian papers that about 6000 silver coins, the oldest from about 1040, was found on the large Swedish island Gothland. There are, as yet, no photos of the full find, it was found in a bronze container last Thursday. My speculation, as yet unverified by any...

Homework Statement In my Chemistry lab, we made silver using copper and silver nitrate. We put a solution of silver nitrate, distilled water, and copper wire in a test tube and observed it. Then we took the copper out (the solution turned blue and the copper had crystals formed on it but we...

When some people explain how to do a certain calculation through a presentation, I sometimes see these presentations use the buttons necessary to press as pictures. For example, I've seen presentations tell me how to graph certain functions and, instead of saying press "Y=," the presentation...

Hi, mirrors are made by coating glass with tin and then silver. I was wondering whether it would be possible to coat other materials with silver e.g. fibreglass? Assuming of course that an appropriate smooth finish could be achieved that would produce a mirror like finish in the end.

I found a lot the the surface plasmon on prism geometry are using gold for metal film, and part of it are using silver. Why we need use gold or sivler as a metal film, is it about the condutivity?

For anyone that doesn't know: silver is well known to have antibiotic and antifungal properties and many people claim it also has antiviral properties in vivo. Before the invention of beta lactam and other organic antibiotics, colloidal silver was the only antibiotic a doctor had at his...

Right now I am using silver solder to combine heating elements on a copper pipe. This is becoming very expensive. Any other means/materials I could use that could get the similar results as the silver without the high cost!

Homework Statement I'm trying to learn how to use my TI-84 Plus Silver calculator and I want to know how to find the zeros of a function, but the calculator asks me to find the left and right bounds along with a guess. What is it asking me to do here? Homework Equations The...

There are rumors circulating recently on various forums on the internet that a net made of coiled up silver wires increases the efficiency of a gas range when placed on top of the gas burner while fuel is being burned. According to what manufacturers claim, this is done by using the reaction of...

Homework Statement What is the minimum amount of AgNO3, in grams, that has to be added to 2.50L of 0.020M K2CrO4 to produce a precipitate? Homework Equations Ksp Ag2CrO4 = 9.0 x 10-12 [Ag+]2[CrO4-2] = 9.0x10-12 The Attempt at a Solution 2AgNO3(aq) + K2CrO4(aq) --> Ag2CrO4(s)...

Hi everyone, This is my first thread so I'll try to be as clear as possible and try to follow the rules. My job is to synthesize silver nanoparticles, characterize them (TEM, DLS, EDAX, Z-POT), and then pass then on to the toxicologists. This is my thesis work to graduate. A new thing I have...

I am writing a novel and know I need physics to figure out a plot point , but I am not proficient in that subject so am turning to the expert community to see if someone can help. It is 1845. We have six thousand silver bars, each ten pounds, to move by river about 140 miles downstream. I...

Homework Statement The complex index of refraction of silver at 532 nm is \tilde{n} = 0.13 + 3.19i. What is the transmission for this light through a layer of silver that is one wavelength (in the medium) thick? In this problem, don't worry about reflections from the boundaries, just consider...

Hello Could anyone help me rewrite following C code to Fortran code? It generates coords for sc silver atoms. #include <stdio.h> #include <math.h> int main(void) { int i, j, k, n = 0; double A = 4.08, L_X = 20.0, L_Y = 20.0, L_Z = 15.0; int iMax = ceil(L_X/A)...

Homework Statement If electrons can be ejected from a silver surface using light with wavelengths as large as 262 nm. What is the work function for silver? Homework Equations work function=hf c=f\lambda The Attempt at a Solution Given the wavelength, I solved for f =...

Historically the experiment was performed on silver atoms, but what's the reason of using silver?

I have a practical question. I work in the radiography department of an industrial contractor and we've found some old recovery buckets used to recover the silver from old film fixer. Essentially you have a bucket of steel wool that the fixer (with silver precipitate) passes through, which...

I've been making solutions of silver ions by hooking 20-30V up to 2 silver electrodes in distilled water and noticed something interesting. The solution starts off as clear and by adding a bit of NaCl, AgCl precipitates out so there's definitely Ag+ ions in there. If I leave the solution for a...

i did an experiment the other day where i split water into hydrogen and oxygen but i used a silver anode and cathode when i turned on the batterie the silver one i think the anode start to corrode( one the one that oxygen forms on) is this making silver oxide when this happens?

silver nitrate + water ?? / Br in water? Hey guys, thanks guys. got my answer!

Homework Statement How do I separate a mixture of Silver Nitrate and Sand and loose as little silver nitrate as possible. Homework Equations N/A The Attempt at a Solution I know silver nitrate is water soluble, so I was going to dissolve all the silver nitrate and then filter out...

I'm wondering if it make much difference if they used silver instead of copper wire in electric generators? Also, how does switching from silver to copper wire affect the voltage and current, or does it just create some resistance?

Why are compounds of silver (AgCl, for example) so insoluble?

What is this ( silver colour one )

Homework Statement Accomplished silver workers in India can pound silver into incredibly thin sheets, as thin as 3.00x10-7 m (about one hundredth of the thickness of this sheet of paper). Find the area of such a sheet can be formed from 1.39kg of silver? (For the density of silver use the...

I'm writing a book but my chemical knowledge is near non-existent and I need a TRUE scientific reason as to why warewolves would be 'allergic' to silver. I know I could make something up but I would like to have as much fact as I can when it comes to stuff like this. It'll help me stand out.

HI THERE, Although silver has d-sub-shell completely filled in atomic state and oxidation state as it loses one electron it is classified as a transition element. while transition element definition is an element whose atom has an incomplete d sub-shell, or which can give rise to cations with an...

Homework Statement In lab we did a reaction where we diluted silver nitrate with K2C2O4 and then boiled it for ten minutes until solid formed, then we filtered out the solid. I have to write a balanced equation for this reaction and am having a real hard time Homework Equations...

Why is "silver" perceived as "grey" in colour? I think we can probably agree that grey would be the closest approximation to the colour of reflective surfaces. I am guessing this is similar to the way in which auto exposure works on cameras in that they assume that the entire scene will be 18%...

We were doing anion identification tests in the lab today and I noticed silver nitrate had a tendency to react with the samples and something would precipitate out. I also noticed silver nitrate is the reactant used for chloride tests. Is what precipitates out in that case silver chloride? Also...

Homework Statement if an object to be coated in a .20mm thick layer with a surface area of 2.0x10^2 cm^2, what is the mass of the silver required? (density of silver is 10.49 g/cm^3) Homework Equations d=m/v , surface area formula? not sure which one The Attempt at a Solution i...

Does anyone know of any way to create sterling silver with a pink hue? Since Sterling Silver by definition must be 92.5% silver, chemically you can only adjust the remaining 7.5%. This is typically copper anyway but at that level, the alloy is not pink at all. Can this be done by altering the...

[b]1. Calculate the minimum amount of NRG, in joules required to completely melt 130g of silver initially at 15 degrees Celsius. [b]2. ? Q = mC (Tf-Ti) + mHf? saw it online somewhere, not sure what the proper formula for this problem is, and if it is done does everything need to be converted to...

Hi I am just curious as to how to add silver and tin to bronze to change its sound... I am making some musical instruments that need to have these metals included for resonance. Being an artist with a small foundry just for casting my own work I have no experience in the production of alloys ...

Homework Statement (a). Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10g. Silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b). Imagine adding electrons to the pin until the negative charge has the very large value of...

I would like to find out more about low-temperature processing ceramics. I'm a product designer and I am working on covering silver objects with ceramics but I am having some problems combining the two materials. Can anyone help me?

First off, maybe this should have gone in the Material Engineering thread, but since it is so common in the EE field...well, I justified it. I have an aluminum housing which gets plated with Ag over Ni. Once received, the housing goes through the following process: Cleaning (alcohol...

Homework Statement Ok, to determine ksp we need to know the concentratison of Ag+2 and SO4-2 Homework Equations to find ksp for calcium hydroxide we used titration The Attempt at a Solution i was thinking about evaporting it but I am not sure if I am right, help...

How do I add games to my TI-83 Plus Silver? Are there any instructions on how to add them? How do I play them once they are on my calculator? I lost my calculator software drivers CD, and I don't recall what else was on that CD. Could I get another copy of the CD online for freeware? If so...

Homework Statement In an experiment, we've isolated silver atoms that are in a purely |\uparrow \rangle state with respect to the z-axis, and feed these into a Stern-Gerlach apparatus oriented at an angle of \frac{\pi}{4} between the x and z axes, which measures an observable we will call...

When identifying resistors by colour codes there is gold (5%) and silver (10%) for tolerence. Is there any other colours for tolerence like these?

:frown: We're getting ready to go spend a couple days on Mt Rainier, and I can't find my hiking boots. This is terrible! They're my perfect-fit boots, nicely broken in but still in good shape. This is our first time out hiking this year...I don't even remember the last place I wore them...

I was looking around to purchase some deuterated chloroform online. A few of the products offered include "stabalized with silver foil". What is the silver foil preventing the solvent from doing? FYI, this silver foil is probably inside the bottle. One more thing, is there reason why you want...

The wavelength associated with the cut-off frequency, for silver is 325 nm. a) What is the work function for silver? b) Find the maximum kinetic energy and speed of the electrons ejected from a silver surface by ultraviolet light of wavelength 254 nm. So far for part a) i have: f = c /...

What's the difference between white and silver color? If both the sufaces are reflecting all the light frequencies, why do they look different?