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Calculate the [H+] [OH],PH of a 0.35 CH3NH3Cl solution. Ka for CH3NH3+ =2.27X10^-11. State wheather water solutions of the following salts are acidic,basic or neutral PH. Also write a net ionic equation to show the acidity or basicity of the salt in water.
a. NH4Br
b. Zn(NO3)2
c. Ca(CN)2
d. Cr(ClO4)3
e. Na2CO3
f. KNO2
g. KI
h.Na2S
I.(CH3)2NH2CL
The amino acid glycerine (H2NCH2COOH) has 2 equilibrium constants, one for the NH3 and one for COOH. pKa for COOH is 2.350 and pKa for NH3 is 9.778. at pH is 6.06 which compounds is predominate in solution
By definition, which of the following can be broken down into simpler substances?
This point we have magnesium ions in solution and fluoride ions in solution. Remember the Ksp of MgF2 is equal to 3.7 x 10^-8 at room temperature
propes a mechanism that shows why P-chlorotoluene reacts with sodium amide in liquid NH3 At -33C to give a 1:1 mixture of P-toluidine and m-toluidine
A 4.80 g nugget of pure gold absorbed 298 J of heat. What was the final temperature of the gold if the initial temperature was 24.0°C? The specific heat of gold is 0.129 J/(g·°C).
Calculate the minimum volume of distilled water, in liters, necessary to completely dissolve a 7.5 g sample of AgBr (s) at 298K. The molar mass of AgBr is 188 g mol
A 3.00-l flask is filled with gaseous ammonia, . The gas pressure measured at 18.0 C is 1.55 atm . Assuming ideal gas behavior, how many grams of ammonia are in the flask?
calculate co32- in a 0.025 m solution of co2 in water h2co3. if all the co32- in this solution comes from the reaction
Determine which species is present in the lowest concentration in 0.10 M H3A solution?
Choose the answer in which the two atoms are listed in order of increasing ionization energy
We recently did a lab/demo using the NMR to observe Na ions in sodium complexes in our Inorganic Class. I understand most of the post lab questions, but there are a few that still have me stumped.
coal fired power plants freqently encounter coal that is 3.90% sulfur by mass. when this coal is burned at a power plant the sulfur is converted into sulfur dioxide gas,
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