I think its c
heat needed = mass * 4.22 * temperature to be raised
heat needed = (16.00+2*1.008) * 4.22 * (10) = 760 joules not kilojoules
can someone confirm the bold part?
then, 760/1367 is the moles of ethanol needed.
then mole * molar mass
Re: HSC 2012 Chemistry Marathon
A. Amphiprotic species are those that can act as proton donors as well as proton acceptors. For example when HCl is added, HCO3- + H+ -> H2CO3. In this case the bicarbonate ion has accepted a proton thus act as a proton acceptor. However when titrated against...
okay let me try
0.106 g mecury in 250ml, that is 0.106g/250ml, thus 0.424g/1L. express this is ppm. that is 424ppm
when they took 1, 2 and 4 ml samples - Use C1V1= C2V2,
thus 424*1=?*100 for 1 mL standard conc = 4.24 ppm
424*2=?*100 for 2 mL standard conc = 8.48
424*4=?*100 for 4mL standard...
last questions for the reciprol graph is a, because u eliminate d since f(x) and 1/f(x) must have same signs, and for f(x) =1, 1/f(x) must also equals to 1,
so its common sense
It doesn't depend on where you work at at all.
For fast food industries i.e. maccas/kfc, There is a minimum wage depending on your age, but for every extra half year you work there, the wage rises by around 1.5 dollars.
Speaking around experience
Hi, your post seem to be pretty helpful
Can you please tell me more about cadet positions? I have never heard of them.
Also whats the difference between an internship for highschool and uni?
Thanks a lot
maybe you can help me out, would you know anything about electric guitars?
Through listening to a few solos i get this feeling that players generally fret single notes and use vibrato etc to enhance the sound is that right? It sounds different from accoustic because of amplification?
Re: HELP!Examples of physical conditions/chemical conditions and competition for reso
I think the plant is called spinifex or porcupine grass, and use allepathy to eliminate competition.
Can some1 check this plz?
physical:
The industrial revolution of Europe lead to increased...
Hi everyone
I got a question, are the connections of you and friends you don't like, or you being part of a group you don't like belonging? Because even though they are connections between places and people, deep down say i dont really want to have this connection, is this belonging?
also any1...