Suppose you are given 3 alcohols primary secondary and tertiary. I have to design an experiment that can be carried out with commonly available materials and equipment that would identify the tertiary alcohol.
I don't know what to do, can someone please help me out?
Hi guys, I need some help with this question. What features in the molecular structure of a compound affect its solubility and its melting and boiling points. I need to answer this question with several examples and include structural diagrams. Please help :yuck:
Hi can someone help me out a little bit on this question
How might acid precipitation threaten the fitness of the environment?
I need to include molecular aspects such as pH.
I think I am having trouble because I have two questions that are quite similar
The first question was
Which macromolecule within the body can act as a buffer?
I wrote the following
The macromolecules within the body that can act as a buffer are proteins. Proteins are effective...
naming organic compounds help pleasezz
I need some help naming the compound below
CH3CHCH3

CH3CCH=CH2

CH3CHCH2CH3
The vertical line should be from the second Carbons not the first. I can't move the line to the middle SORRY!
The name I have is...
I tried looking for this online, but didn't really find anything can someone help me out I need an example of a naturally occurring acidbase buffering system in an organism
Hi my question is How does the pH relate to the concentration of Hydrogen ions?
what I think is The relationship between the pH and the concentration of Hydrogen ions is that the log of the hydrogen ion concentration is equal to the pH, but this doesn't seem right at all.
can someone...
My teacher has said that using the distillation apparatus is a good idea, but can someone tell me a little about how to use it. If we were going to use the apparatus at this site the procedure for purifying the contaminated wine would be to...
GCT that link you gave me for a tutor looks good, but I don't think they will help me for free.
Does anyone know any tutor sites for chemistry, biology, and math that are free? Something like a chat or something. I know this one ilc.org are there any others??
http://en.wikipedia.org/wiki/Fractional_distillation using the apparatus in this link the round flask would have the wine and then i would heat it to the boiling point of the diethylene glycol? then what would vaporize into the other flask? Would one flask have purified wine and the other the...
how will I know the boiling point of this alcohol? Diethylene glycol? Will drawing out the structure of this hydrocarbon help? This is a hydrocarbon right? lol :eek:
Distillation is probably the way to go but I don't know how to do this using boiling points. This looks like the right way to do it because I was reading stuff about alcohols, aldehydes, ethers, ketones, naming these and then their would be a property section where it would talk about boiling...
Hi I don't know where to start in this question can someone please help me out. Diethylene glycol, although toxic, has occasionally, and illegally, been added to wines to enhance the sweet flavour. Propose an experimental design, including the procedure and the equipment that you would use, to...
is 0.014 mol/L the correct concentration for the solubility of PbCl2? How do you know that is in distilled water?
and how did you get 0.0012 mol/L NaCl solution?
i don't know how to compare to the solubility of water. Lol I am so confused if you could take me through this step by step it would be appreciated thanks
use you accepted value for the solubility product of lead 2 chloride to determine the solubility of lead 2 chloride in mol/L and g/L
the accepted value is ksp=1.2*10^5
Ksp=[Pb] [Cl]^2
1.2*10^5 = (x) (2x)^2
x=0.014 mol/L
0.014 mol/L * 276.1 g/mol
=3.98 g/L
I don't know if I...
ok i don't get what i have to do do i do dissociation of NaCl next?
NaCl> Na^+^2 +Cl^
initial concentration Cl=0.100
initial concentration Na=0
change for Cl=x
change for Na=x
equilibrium for Na =x
equilibrium for Cl=(0.100+x)
where did u get the (0.100+2x) there is no 2 in the equation...
How many times more soluble... ASAP HELP
Hii, I did a lab and need help with this question it says
How many times more soluble is lead 2 chloride in distilled water than in 0.100 mol/L solution of sodium chloride?
The ksp for lead 2 chloride is = 1.2*10^5
I don't know what other...
I need to find the best oxidizing and reducing agent in the periodic table and say why i chose what i chose.
I think the best oxidizing agent is Fluorine
and the best reducing agent is Lithium I am not sure if my predictions are correct and if they are I don't know how to explain why I...
HELP! In this experiment I measured the initial mass of a piece of Al and then i put it into a beaker containing 100.0 mL of saturated PbCl2
The concentration I calculated for Pb is 6.12 *10^^5 mol/L
The concentration I calculated for Cl is 1.224* 10^^4 mol/L
Therefore my Ksp= [Pb]...
well in the first trial I have only a 6% concentration of hydrogen peroxidethe amount of the peroxide is 75 mL.
In the second trial I have 6% concentration of hydrogen peroxide but i have diluted it with 10 mL of water. There is 65 mL of hydrogen peroxide in the test tube
In the third...
:frown: I did an experiment on the effect of substrate concentration on the rate of a catalase.
I was given 6% substrate concentration of hydrogen peroxide. We had to do 3 trials with different concentrations of the hydrogen peroxide but we had to dilute the peroxide ourselves in the second...
Homologous or Analogous Features?? HELP! PLZ
Hi I have a mini lab to do where I had to make two charts and compare features of the brown bat, the orca, the koala, the tiger shark, the black capped chickadee and the human.
In my analysis it says from the first chart which has features such...
I think I am going to do the process transcription the whole thing with exons and introns and spiceosomes i just don't know how to be creative I am going to shoppers drug mart right now to find some stuff everything else is closed with me luck, any ideas how to show RNA polymerase untwisting the...
well there are two examples given but i don't want to use the examples. Only one person is allowed to be a part of the costume.
The examples are:
Helicase untwisting and breaking Hbonds in DNA replication
Or
Restriction enzymes cutting double stranded DNA at the palindromic sequence.
:confused: HI I need some major help in creating a costume that illustrates a molecule involved in a process, can someone please help me i have to wear the costume in class tomorrow and am not allowed to make a model .
I need some ideas as to what process is easy to do and how i can make a...
I already did it that way and then solved for x but that answer was wrong. x does not equal 0 in my textbook it says the answers are 2 and \frac {1\pm\sqrt{3i}} {2} i don't know how to get this answer can some1 please help me immediately!:cry:
Hi i need some help solving this polynomail a tutor helped me with this question getting x=0 but this answer was not correct can someone else please help me out?
The question is
5(x+1)^3=5
a 3.25g sample of NaHCO3 (sodium hydrogen carbonate) reacts completely with sulfuric acid (H2SO4) in a time of 20 seconds. express the average rate of reaction as
a) mass of H2SO4 consumed per second
I don't know how to find the mass of the sulfuric acid, therefore I am unable to figure out...
ok i still don't think I get symmetry but for the range I've got
{x: x cannot = 90,90,270,...,XER}
this is from tan(theta) not from the equation I wrote in the first post.
If i look at that equation on my graphing calculator i get
{x: x cannot= 0.47, 1.53, 3.76, 4.80.. XER}
the...
HOw does y3=\tan (2x+\pi) differ from y=tan(x)
y=\tan [2 (x+ \frac {\pi} {2} )] +3 rearranged
It differs because it has a
Horizontal compression by a factor of 1/2
it is reflected in the x and yaxis
there is a horizontal translation \frac {\pi} {2} units to the left...
Im not sure I think it is either
y=3tan (2(x60))5
OR
y=3tan(2x60)5
which will become y=3 tan(2 (x30))5 but I think this one is wrong
if the first one is right then should the 60 have a negative or plus sign before it?
HELP! QUICK! :cry: :cry:
y=2\tan (3x+\pi) +3
state the following
period = \frac {\pi} {3}
yintercept=3
Range = {y: yER}
Domain= {x: ?}
Symmetry?
Vertical Asymptotes?
Zeros?
Can someone please tell me how to figure out what is left there are so many zeroes and i can't read them off of my...
How does the graph y=3 \cos (2\theta+ \frac {\pi} {4}) +3 Differ from the graph of y=\cos\theta
I think this graph is different because it has a vertical stretch by a factor of 3 and is translated upwards 3 units but I am not sure how to rearrange this to find the horizontal translation...
I needed to find the properties of this trig function this is what i got
period=3
amplitude=0
max=2
min=2
range{y:2<=y<=2}
domain {x:XER}
horizontal phase shift 1 unit left
no vertical shift
Are these values correct? Should period have a unit with it or is just 3 fine? What about...
Find the equation of a sine function that has a vertical displacement 2 units down, a horizontal phase shift pi/3 to the right, a period of pi/6, reflection in the yaxis and the amplitude of 3.
my answer y=3\sin [12(x+\frac {\pi} {3})] 2
is this what you get?
How do I rearrange this where do I begin?
y= 2sin [ 2\pi * \frac {(t+1)} {3} ]
I need to state the period, amplitude, max/min, range, domain, horizontal phase shift, and vertical displacement
Im not sure how to rearrange the square brackets.