Chemistry

I will be making Ag(NH3)2 (diamminesilver), but am trying to figure out how to get 19 mL of a .1M solution of it? I am not sure how to achieve the .1M aspect of Ag(N3)2 in order to measure out 19 mL if it. Any help as to what steps I need to do along the way when making the Ag(NH3)2 to achieve the .1M would be appreciated.

I'm currently year eight and passed Science with an A. Because it's only year eight science its a bit of everything and you only learn the basics of the different fields. I want to get better at Chemistry because I find a huge interest in it, oh and because I want to work as a veterinarian. So if you could link me to any possible online websites what can assist that would be great! Thanks in advance!

Hello Everyone- I have been seeking the answer to the following many places on the internet, but am having trouble finding it and am hoping someone here can help. I have 1 gram of gold, the particles of which are 100 nanometers in size. I am trying to find out the following: If I wanted to make a suspension of gold in water so it will turn out to be 100 PPM, how do I go about figuring out how much weight of the gold nanoparticles to add to the water to achieve that PPM rate?

Hi all, First post here, nice to meet you all. No "Professional" science background, just B level GCSE's so, extremely basic knowledge of chemistry on an academic basis, and knowledge mainly gained from other than experiments that I have carried out alone as a hobbyist. So, I have some Tin (II) chloride (Dihydrate) and wondering how to get it into a known molarity from the powder form, I have seen somewhere that it has to be mixed to an equal molar hydrochloric acid solution. Basically, what is the mix ratio to get 1M Tin (II) chloride solution from: Tin (II) Chloride (Dihydrate) 35% Hydrochloric Acid Distilled/De-ionised water Thanks in advance!

I'm assuming you need a big one for the liquid nitrogen and a smaller one for the cells, but types/sizes specifically would one use? It's for long term storage. Thanks in advance.

CO2+H2O=CH4

Well firstly let me say that I am no expert but it seems like the number of protons that determine the different elements is like a puzzle made by the universe? I mean they are all in sequence... am I missing something?

Im not sure wich one of these apply to the combustion of carbon using Potassium Chlorate : 3( C ) + 2(KClO3) = 3(CO2) + 2(KCl) OR 3( C ) + 4(KClO3) = 3(CO2) + 4(ClO) + 2(K2O) if second Reaction is true: Hypochloride would be formed, would it be toxic? Also the K2O would react with H20 in the air to Form KOH wich is caustic. And i would also need only half the amount of Carbon fuel. So is this reaction harmless :1st reaction or does it create toxic fumes :(2nd Reaction) thanks already PS: is carbon a good fuel to use or an organic compound like powderd sugar? PPS: would Hypochloride form Chlorate (ClO3) under high temperatures formed within the…

what is the basicity of carbon: primary, secondary, tertiary, e.g. in 1-adamantylamine (C connected with N is connected also with 3 other C, 2-adamantylamine (with two other C), 1-adamantymmethylamine (with just one next carbon)? more carbons connected to this first carbon: ...-C-NH2 makes it less basic, or more?

How would you define delocalization index? how in very easy way explain it to students who has no idea about that

O=Cl=O → O--Cl-O- → (cyclic)O-Cl-O This is an intramolecular reaction which isn't all that common. The double bonds break, causing the O's to each have a negative charge. This forms an ion. The ion bends and eventually the 2 O's bond with each other forming a ring. But would this really happen? I mean yes, sunlight is enough to split Cl2 into 2 Cl radicals but would it be enough to break the O-Cl double bond so that the ion can form? I have heard that this won't happen due to the negative charges. But really, this conserves octets and hypervalency(ability to have more electrons than an octet). But surely this intramolecular reaction where the oxygens bond with …

Hey internet/blogoblag/whatever XKCD name for the interweb, Ok folks, a while ago I posted to this forum with an idea I had relating to gravity and magnetism (proven wrong with inverse square and cube law). Now, in high school I have started on a project and I have run into a bit of a dead end. I am trying to build a rocket engine powered with ethanol (rubbing alcohol) and a cheap oxidizer. My goal is to make this engine as cheap as possible, yet still as functional as possible. Today, I attempted to distill store bought hydrogen peroxide which failed due to the bunsen burner flame causing the hydrogen peroxide to combust once freed of water. Are there other cheap a…

I want to create a simply carbon to carbon bond structure using possibly an enzyme or and easy method of building it into the shape I desire. Right if this succeed you could make diamonds, but first thing first, how do you normally create a carbon to carbon bond in thin air? I'm looking for a cheap alcohol enzyme creation technique, not something I have to monitor over. And if I do need an optical tweezer to place two carbon atoms next to each other for carbon to carbon bond formation, let me know how it's done

What's the science/reasoning behind this phenomena? I think it is a bit it like witchcraft...as I don't understand why it happens... Anyone here have any ideas from the perspective of someone with a science/chemistry background?

I am visiting my parents for the holidays, and my dad and I just finished refilling the water in my car battery. I come to find out from my mother that what we thought was a gallon of 'water' is actually fertilizer dissolved in water. Did we just make a bomb? I feel like we're going to end up on the next episode of 1,000 ways to die. Maybe I should siphon this out I am also curious if the metals present within the fertilizer could react with the acid to form undesirable products and/or precipitates. She said she only used about a teaspoon of miracle grow per gallon, so it's not very concentrated. And we added a fairly small amount. Thanks!

The potential of two chemical cells, the standard and the unknown, were determined to be 0.915 V and 0.328 V, respectively. If the pH of the standard cell is 1.56, what is the pH of the unknown cell? If the standard calomel electrode (E = 0.244 V) was used to determine the cathodic potential of the standard and unknown cells, what are the values measured?

How do I find % Absorption ?

My highschool science experiment is testing to see if there are differences in growth of algae if they are grown in growth mediums with different pH levels. The problem is that I am very confused on how to to calculate how many mL of phosphate buffer solutions I should use to change the growth medium to the desired pH. For example, How many mL of a .1 M phosphate buffer solution (pH 5) should I add to 15 mL of a growth medium (pH 7.8) to lower the growth medium's pH to the desired pH level of 5? I believe that I need the Henderson Hasselbalch but I am very confused with the math. Any help would be much appreciated. If math is shown then I will be able to calculate th…

So when you combine thermite and ice there is a reaction that results in a powerful explosion...Here is a Mythbusters episode where they experiment with it... They say that it is a 'mystery' why this explosion happens...Does anyone here have an explanation?

Why, or rather, HOW is this the case?

Hi, i have been wondering about the influence of the ligands on metal NMR shifts, for complexes with metal like Pd, the ligands are 2 amine ligands, and they have also two chlorides in structure, cis or trans geometry. In DMF, when comparing the difference between the chemical shifts of the same complexes (the same ligands) but with different geometry, for cyclic amines like cyclopropyl-cyclohexyl, is small, and trans-compounds signal are more shielded. The opposite situation is for ths type of coplex with NH3, MeNH2 or Adamantylamine ligands, trans more deshielded than cis, and the difference between cis and trans is biggest for adamantylamine compounds, while for re…

Compound A (C12H11NO2) IR : 2225, 1740, 1645, 1600 and 1505 cm-1 2.05δ (3H, dd, J = 7.10, 1.80 Hz) 3.65δ (2H, s) 6.10δ (1H, dq, J = 15.50, 1.80 Hz) 6.50δ(2H, d, J = 7.80 Hz) 7.40δ (2H, d, J = 7.80 Hz) 7.65δ (1H, dq, J = 15.50, 7.10 Hz also i have to get 2 isomers that will have the same ir spectrum . but ir cant distinguish isomers right? SO I PREDICTED MY MOLECULE TO HAVE A NITRILE GROUP AND 1 BENZENE RING and its 1,4 di substituted WHEN I DREW IT OUT I AM NOT GETTING A 2 H SINGLET . can you help me predict this molecule please. im guessing the 2 h singlet will be with a nh2 but the molecule has a double bond equivalence of 8. help is greatly appreciate…

I am a postgraduate and (will) have access to a lab. I want to synthesize a block copolymer, (maybe PS-b-PMMA?) The block copolymer should microphase separate to form a nano-array domain which I then intend to use as a template to deposit another polymer, (probably polypyrrole, or PEDOT?) This link should help convey my intention http://www.sigmaaldrich.com/technical-documents/articles/material-matters/use-of-block-copolymers-in-nanoscale-patterning.html I cannot afford to buy the block copolymer, and I am wondering if it's possible to synthesize it myself in the lab. I have no experience in this and this is more of an exploratory thing to me.

What are they? Will they be permanent?

Hi, I have a couple pounds of potassium hydroxide that I need to dispose of safely. I have basic DIY safety equipment and outdoor spaces. How should I proceed?