Okay I figured out that the information I gave was wrong.
I measured the pH of the NH3 in its source bottle to be 10.26
I then titrated it with 9.275mL of .0100mol/L HCl.
I calculated the amount of HCl to be 9.275x10-5mol.
Based on the equation HCl(aq) + NH3(aq) <--> NH4+(aq) + CL-(aq), I...
Homework Statement
In this experiment you will find the ionization constant for ammonia, a weak base.
I have completed the experiment, and have the following:
Initial concentration of NH3: 3.708mol/L
Initial pH of NH3: 10.26
Homework Equations
NH3(aq) + H2O(l) <--> NH4+(aq) +...
Okay, so it's the hydrogen bonding, and as the molecules grow larger, they can fit together less tightly. Now I'm going to take a guess and say that for solids, the ideal size carbon chain comes with 1-propanol; that is, the molecules can fit together in a way that aligns hydroxyl groups best...
Homework Statement
The boiling points (ºC) of methanol, ethanol, 1-propanol, 1-butanol, and 1-pentanol are 64.7, 78.5, 97.2, 117 to 118, 137.5, respectively. The melting points are -97.8, -114.1, -1277.0, -90.0, and -79.0, respectively. Explain these trends with reference to molecular...
Well in all honesty, if you got accepted into the program you're likely capable of attaining the marks. Rather than asking questions on physicsforums.com, you should be studying. Study, raise the marks by even 1%, and confidence levels will rise.
Homework Statement
Question One: Prove that |u x v|^2 = (u . u)(v . v)-(u . v)^2 where u and v are vectors.
Question Two: Given that u = sv + tw, prove algebraically that u . v x w = 0 where u, v and w are vectors and s and t are integers.
Homework Equations
I don't know :(
The...