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Problem- A buffer solution is made using a weak acid, HA. If the pH of the buffer is 12 and the ratio of A- to HA is 1000, what is the pKa of HA?
I want you to explain the chemistry in this problem
Acetaldehyde decomposes at 750 K: CH3CHO â†' CO + CH4. The reaction is first order in acetaldehyde and the half-life of the reaction is found to be 530 seconds. What is the rate constant for the reaction at this temperature?
How can you determine whether a molecule or ion will exhibit delocalized bonding?
500 ml solution of benzoic acid (ka=6.6e-5) has a ph of 2.88. What is the molarity of benzoic acid
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Plutonium-239 is a byproduct of the fission reaction used to produce energy in nuclear power reactors. It has a half-life of 24,400 years. A student determines that it will take 97,600 years for the radioactivity of a Pu-239 sample to drop to one-..
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A gaseous mixture of O2 and Kr has a density of 1.104 g/L at 435 torr and 300K. What is the percent of O2 in the mixture?
The pH of a solution oh HN3 was found to be 4.7, find the original concentration of the hydroazoic acid, HN3
consider the reaction 4 fes 3 o2g rarr 2 fe2o3s.if 12.5 g of ironiii oxide rust are pro- duced from 8.74 g of iron how
The first end point volume phenolphthalein endpoint is 11.58 mL as well as the second end point volume (bromocresolgreen end point is 64.85mL. Compute the weight percentage of Na2CO3.
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