Hello,
i am going to buy a laser and a telescope powerful enough to see the laser spot on the moon.
The lunar phase i choose for the experiment is New Moon, for obvious reasons.
When i move the laser, i should see the light spot move on the moon surface after about 2.5 seconds, due to the light...
hello, i have a doubt
i bought some small neodimium magnets 8x3mm
and now i would like to try some experiments with them
i have a doubt:
if i rotate one of these magnet around one of its parallel axis, very fast , near 1000000 rpm,
what happens to the magnetic field produced by the magnet?
if...
hello,
i am a near light runner
at 3000000 km from us there is a mirror
to start the run , my friend turns on a very powerful lamp and i start running toward the mirror
me and my friend will see both the light coming back after 20 seconds?
this is the question :)
perhaps to know the concentration in percent i need to know the mass of 1L of the 2M solution...
i can guess...380g is 6% of (380/0.06)g = 6333g so i have to add 6333 - 380 = 5953g water, that is about 6L water.
So total volume is 6Lwater+380g tin chloride..i don't know...
Thank you very much for the answer
yes, you are right, i did a mistake, i wrote 50cl, but it was 50ml.
About my project:
2M solution is very concentrated, this is needed only to melt tin.
To sensitize the plastic i need lower concentrations:
- an author suggests to make a 0.003M solution and...
i need this solution to try to do silvering of a plastic surface for my hobby project
the tin solution in this case will be used as 'sensitizer', i.e. it willbe used to prepare the surface to be silvered...
i have only a scholastic background, not a professional/expert background
thank you for...
hello, i would like to make a tin chloride solution without having to buy the tin chloride crystal powder.
i know that tin and hcl are enough, but i would like to know how they can mixed ,and in which proportion, to get a specific concentration.
i found an example where are used:
12gr pure tin...
thank you
yes, i found that the tin chloride solution is used to enhance the adesion, it is a 'sensitizer' and to have better results, the object surface must be covered with a wetting agent (a surfactant) before applying the tin chloride solution.
about this solution, i found some methods to...
hi to all,
i have some questions about glass silvering;
i found this procedure:
1) make a solution (A) with 1.4 gr silver nitrate + 17gr water
then, add to the solution 1.2gr of ammonia 26% solution
2) make a solution (B) with 9.2 gr potassium bitartrate + 4gr sodium carbonate + 17gr water
3)...
hello,
i am lodovico, lovicodo is the nick name
i am from italy
i joined this forum because i love diy, and for my projects sometime it is needed to use chemicals
i hope to learn something to use them in the best and safe way