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While 13.96mL of HCL of in known concentration (but less than that of the base) are reacted with 15mL of 3.098 M NaOH, 1.87 kJ of heat are released. From this experimental data compute the morality of the HCL solution
The specific heat capacity of the solution produced was 4.20 J/g•°C, and final temperature reached was 34.91°C. How much heat was produced by the dissolution
One student measure the pH of the following three solution (weak base, conjugate acid and buffer). Using this data, please calculate the pKa and pKb (show calculation).
calculate the pH change when 25 mL HCl are added to 500 mL of a solution that is 0.10 M CH3COO-
The half-life of C-14 is 5730 years. A fossil was analyzed and determined to have a carbon-14 level that is 50.0 % that of living organisms. How old is the fossil?
A cylindrical steel pipe is used to transport hydrogen gas in a certain process. The density of the hydrogen in the pipe is 5kg/m3 and the density in the environment is effectively zero
1. given the following heat of formation values calculate the heat of reaction forc3h8g o2greg co2g h2oldhf values in
The specific heat capacity of silver is 0.24 J/°C · g. Calculate the energy required to raise the temperature of 120.0 g Ag from 273 K to 305 K
Calculate Pt, in atm, for three different gases at partial pressure of 144cm, 800mm, and 1.3m of Hg.
Which too factors determine whether a collision between two reactant molecules will result in a reaction. select all that apply.
Consider the compression of the gas in the right part to be a reversible process. a) calculate the work done on the right part in this process and the final temperature in the right part
The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 7.10mL of a 0.410\it M \rm HCl solution to the beaker. How much will the pH change? The pKa of acetic acid is 4.760.
Explain Phosphoglycerides differ from glycerides in that one of the hydroxyl groups of glycerol is esterifed with
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