What is the smallest amount of solid NaOH that will exceed the buffer capacity 500mL of a buffer that is 0.4M in acetic acid and 0.15M in NaOAc?
a)5.69 b)5.16 c) 4.74 d) 4.31 e)3.00 grams
Since this is a strong base, we only need to deal with the 0.4M of acetic acid.
so 0.4M *.5L =...
The problem is, if you try using your way, it will be very difficult to figure the answer out. I used a different method, and I got the answer. Thanks anyways.
Pure solid ammonium carbamate, NH4CO2NH2, is allowed to dissociate into a vacuum according to the equation:
NH4CO2NH2(s) ---> 2 NH3(g) + CO2(g)
At 25oC, the total pressure of the gases in equilibrium with the solid is 0.116 atm. If carbon dioxide, CO2, was then added, sufficient to have...
I take it as, there's no solution to this problem. Either I'm reading the question wrong, or the prof wrote the question wrong. This is because for any other problems in this exercise, the limit did exist, so I'm sceptical as to whether the answer is infinity.
A massless spring hangs from the ceiling with a small object attached to its lower end. the object is initially held at rest in a position y such that the spring is at its rest length(not stretched). The object is then released from y and oscillates up and down, with its lowest position being 10...
So Equivalent spring is = (1/k1 + 1/k2 + 1/k3... 1/kn)^-1
where kn is the spring constant for each component ? This is based on what you said.
This is how I would approach it:
Let's say there are only 2 springs connected in series. We can calculate the ratio between the distances...
How do you find the limit to:
Lim
x->0+ sqrtx/(1-cosx)
I use the L'Hopital rule and i get
lim
x->0+ 1/(2sqrtx*sinx)
and I can't get anywhere after this. I even tried multiplying by sqrtx/sqrtx to get rid of the sqrtx at the beginning, but it still doesn't work. Please help, thanks.
Two springs with a spring constant of k = 6430 N/m are joined and connected to a block of mass 0.245 kg. The system is then set oscillating over a frictionless surface. What is the frequency of the oscillations?
This is what I think is the correct approach to this question:
since the...
How do you find the limit to:
Lim
x->0+ sqrtx/(1-cosx)
I use the L'Hopital rule and i get
lim
x->0+ 1/(2sqrtx*sinx)
and I can't get anywhere after this. I even tried multiplying by sqrtx/sqrtx to get rid of the sqrtx at the beginning, but it still doesn't work. Please...
A massless spring hangs from the ceiling with a small object attached to its lower end. the object is initially held at rest in a position y such that the spring is at its rest length(not stretched). The object is then released from y and oscillates up and down, with its lowest position being 10...
Two springs with a spring constant of k = 6430 N/m are joined and connected to a block of mass 0.245 kg. The system is then set oscillating over a frictionless surface. What is the frequency of the oscillations?
This is what I think is the correct approach to this question:
since the...
Which is more soluble in hexane, hexyl ethanoate or octanoic acid?
I'm thinking it's octanoic acid with the longer uninterrupted hydrocarbon chain, where as the ester's longest uninterrupted hydrocarbon chain is composed of six carbons. Is this correct? If not can you please explain why? Thanks.