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A quantity of 4.00 102mL of 0.600 M HNO3 is mixed with 4.00 102mL of 0.300 M Ba(OH)2 in a constant-pressure calorimeter of negligible heat capacity. Explain the initial temperature of both solutions is the same at 14.66°C. Explain what is the final temperature of the solution? Presume that the densities and specific heats of the solutions are the same as for water 1.00 g/mL and 4.184 J/g•°C, respectively. Use -56.2 kJ/mol for heat of neutralization.
The North American record for highest recorded barometric pressure is 31.85in Hg , set in 1989 in Northway, Alaska. 1. Convert this pressure to millimeters of mercury (using 4 significant figures) 2. convert this pressure to atmospheres
he synthesis of a phosphodiester bond involves condensation of a5- phosphoryl group on one nucleotide with a 3 hydroxyl
What are the two pKa values for carbonic acid? What is the pH of a 0.100M solution of potassium bicarbonate. What is the pH of a 0.100M solution of potassium carbonate
What is the chemical formula for a compound containing half as many barium atoms as iodine atoms?
Your next step is to quantify the protein in the unknown mixture. Using any of the items needed above, describe how you would determine how much protein is in your sample.
He is heated until the pressure reaches 3.50 atm. What is the final temperature in degrees Celsius
What are the coefficients in front of C2H6O and C2H4O when the equation given below is balanced. The reaction occurs in aqueous acid.
Determine the empirical formula of perchloroethylene given that a 2.58-g sample yields 1.37g Co2 in a combustion analysis experiment. Add subscripts to complete the empirical formula.
calculate the standard emf of a cell that uses the mgmg2 and cucu2 half cell reactions at 25 deg c. what is the
A student added more KSCN solution that instructed when making standard solution. assuming no other errors were made in the experiment
how many grams of boric acid boh3 should be used to make 2l of 0.05m solution? what kind of flask would be used to
Methane the principal component of natural gas is used is used for heating and cooking. The combustion process is CH4(g) + 2O2(g) -> CO2(g) + 2H2O(l). If 12.1 moles of CH4 react with oxygen, what is the volume of CO2 (in liters) produced at 21.5 d..
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