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Problem- What weight of glycine pKa1 = 2.4 pKa2 = 9.6 and what volume of 1M HCl are required to make a 100ml of 0.3M buffer pH 2.4?What weight of glycine and what volume of 1M NaOH are required to make 100ml of 0.3M buffer, pH 9.3?
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Problem- Consider the reaction: Li2S+Co(NO3)2 = 2LiNO3 + CoS. What volume of 0.165M Li2S solution is required to completely react with 125mL of 0.150 M Co(NO3)2
It takes 47.0 to raise the temperature of an 10.6 piece of unknown metal from 13.0 to 24.7. What is the specific heat for the metal?
The label on a tank of gas of unknown origin had been lost. To determine its identity (molecular weight) a certain volume of it took 76.32 seconds to effuse through a porous partition. Under identical conditions HCN effused through the hole in 59...
Suppose that you wanted to be sure that a metal ion, any metal ion, would dissolve in water. What salt of the metal ion compound would you choose
Calculate the work(in kilojoules) done during a synthesis of ammonia(see reaction below) in which the volume contracts from 8.6L to 4.3L at a constant external pressure of 44atm.
what is the ph of a solution prepared by mixing 50.0ml of 0.125M KOH and 50.0 ml of 0.125M HCl
At 14 degree Celsius, it takes 7:26 minutes (446 sec) for acetone, HCl, and iodine solution (color changed from yellow to clear) to react.
A solution was prepared from 10.0 mL of 0.100 M cacodylic acid and 10.0 mL of 0.080 0 M NaOH. To this mixture was added 1.00 mL of 1.27x10^-6 M morphine.
Express the molar concentration numerically using two significant figures. What is the final concentration of D at equilibrium if the initial concentrations of A = 1.00M and B= 2.00M
question a 1.5 gram sample of a gaseous hydrocarbon has a volume of 820 ml when measured at 227 degrees celcius and
Calculate what will be the amount of heat, q, absorbed by the calorimeter apparatus also express your answer in kJ? (heat capacity = 2.677 x 103 J/K)
Find the molarity of a Ca(OH)2 solution,given that 363 mL of it is neutralized in a titration by 187 mL of 0.0058 M HNO3.
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