1. what is the pH of a solution that contains 1.56X 10^5 M hydrogen ions ?
2. Is there a pH above which the molarity of hydrogen of water is higher that the molarity of hydrogen ions derived from the dissolved chemical, and what is it?
3. What is the pH of 10^-8 M solution of HCl, when HCl...
i found the number of moles for each gas, but we are not given the volume;As you say \Delta H = \frac {mol}{L}. And how is -533kJ usefull in this problem?
Thanks
N_2_{(g)} + \frac{5}{2}O_2 \longrightarrow N_2O_5 + \mathfrm 533 kJ energy
533kJ energy is released as heat
We are given that 101.7g N2 , 102.97g O2 reacted. And this happens at T= 25C and P = 1atm
what is the delta H and delta U for this process per mol N2(g). And how much work is done...
just watch this its about the disclosure project... cool stuff about et's ufo's...
http://www.netro.ca/disclosure/npccmenu.htm
anyone know where i can get some info on antigravity?
:eek: I read a newspaper a few days ago.. the Articles was about some physics teacher, who mathemtically preicted when the country war was going to end, and it really happened! :eek: how do you apply physics and mathematics to predict the future ? :confused:
Teach me please
:eek: I read a newspaper a few days ago... The article was about some guy, who mathematically predicted when the war was going to end, and it really happened! :eek: how do you apply mathematics to real life? :confused:
If lighting is just a high voltage (not necessarily high current) stream of electrons, would it be possible to make something like that at home? (i.e. 30 volts DC ?)
how do I convert my 30 Volt battery into something with more voltage and less current?
Will a transistor help, and what kind...