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SarahF275
Questions and answers by visitors named
SarahF275
Questions (15)
'Is the amphoteric substance C2O4H- more likely to act as an acid or a base, and why?'
I was given the Ka of C2O4H- as 6.4 x
4 answers
1,873 views
In terms of its structure and intermolecular forces, why is neoprene able to stretch? I want to say it's because its carbons
4 answers
2,529 views
'Identify two factors that affect the change in entropy that occurs during the formation of an NaCl solution. State whether each
4 answers
1,563 views
The question reads, "A spaceship is found to have a tiny leak that allows the effusion of air into space. Air in the spaceship
3 answers
2,009 views
Will the ratio of the rates of effusion for two gases be the same as the ratio of the rates of diffusion for the two gases be
2 answers
650 views
Quick question - I understand why ethanol is soluble in water, because it can form hydrogen bonds, but why is it also soluble in
2 answers
547 views
I'm supposed to calculate the rate equation, including k, for the reaction whose data is given in the table:
Experiment: 1 2 3
5 answers
558 views
'Would the probability factor in the rate equation be greater or lower if the particles colliding were individual atoms instead
4 answers
1,486 views
The equilibrium constant based on concentration is Kc = 190 for the reaction of carbon monoxide with hydrogen gas at 1000K. What
4 answers
1,106 views
How are absorbance and retention time related? Specifically, if something has a longer retention time, does that indicate high
1 answer
403 views
'A solution is prepared by titrating a 100.0 mL sample of 0.10 M HF (Ka = 7.2 x 10^-4) with 0.1 M NaOH. What is the pH after
2 answers
1,217 views
'Given 1.760 L of 0.384 M acid and 0.834 L of 0.724 base, find the final pH. Both the acid and base are strong.'
First I
5 answers
450 views
'What is the pH of 0.083 M C5H5N if the Kb value for C5H5N is 2.9 x 10^-9?'
I wrote the equation as C5H5N + H2O --> C5H6N^+ +
2 answers
847 views
The problem states, 'A student wants to determine how long it takes to dissolve 51.3 g of common table salt (sodium chloride) in
3 answers
1,327 views
'Describe the difference in intermolecular forces between 2-methyl-3-hexanone and 5-methyl-3-hexanol and how this affects the
4 answers
669 views
Answers (7)
Quick clarification question - carbonyl groupts don't form hydrogen bonds, right? Since they don't have hydrogen attached to them, even though there's oxygen, they wouldn't participate in hydrogen bonding?
Unfortunately I don't know. The problem only calls them a strong base and a strong acid, so I assumed they were monoprotic.
This is a parabola, and since they gave you the equation in vertex form, you can find the vertex, which will be at (-h, k). The vertex here, then, is at (4, 9). Since there's a negative sign out in front, we know this parabola opens down, meaning 9 is the
Just a quick question - why is the 0.82 cubed rather than the 0.83? Your equation matches mine, so wouldn't the concentration of hydrogen, the 0.83, be cubed? And then the concentration of water would be to the first power . . . ? I did this: (1.4 x 0.82)
So essentially, the order of X is 0 and the order of Y is 1? Which would mean k is equal to 12.85? That seems like a big k, but mathematically it fits.
Ahh never mind, I just remembered logarithms exist . . . oops
Ideal Gas Law: PV=nRT Convert temperature to Kelvin (C + 273) Once you've done that, you have 3/4 variables. Substitute them into the ideal gas law along with the appropriate gas constant value to get n, the number of moles. From there, use the molar mass
