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A 3.00-L sample of argon has a pressure of 345 kPa at 55.0C. Explain what volume would the sample have if the pressure is 0.839atm and the temperature exactly 0C?
Air contains nitrogen, oxygen, argon, and trace gases. if the partial pressure of nitrogen is 587 mm Hg, Oxygen is 158 mm Hg, argon is 7 mm Hg, and trace gas pressure is negligible, what is the atmospheric pressure?
A 50.0-mL sample of 0.100 M Ca(NO3)2 is mixed with 50.00 mL of 0.200 M NaF. When the system has come to equilibrium, which of the following sets of conditions will hold? The Ksp for CaF2 is 4.0 x 10-11.
Calibration standards.Transfer 1.00, 5.00, 10.00, 15.00 and 20.00 mL aliquots of 10ppm F- solution to 100 mL flasks. Add 50 mL of TISAB containing CDTA to each
A particular reaction has a ?Ho value of -118 kJ and ?So of 47 J/mol K at 298 K. Calculate ?Go at 349 K in kJ, assuming that ?Ho and ?So hardly change with temperature
you have a 10.40-g mixture of table sugar c12h22o11and table salt nacl. when this mixture is dissolved in 150. g of
Calculate the mass of urea that should be dissolved in 201 g of water at 35°C to produce a solution with a vapor pressure of 37.1 mmHg.
A 2.04 g lead weight, initially at 10.0 Celcius, is submerged in 7.96g of water at 52.9 Celcius in an insulated container. What is the final temperature of both substances at thermal equilibrium
Assume you 0.010 mol of N2O4 (g) in a 2.0L flask at 50 degrees Celcius. After the system reaches equilibrium, [N2O4] is 0.00090 M. What is the value of Kc for this reaction
A student plans to titrate 25 mL of a .134 M HNO3 solution with .179 M NaOH solution. Calculate the volume of NaOH that will be needed to reach equivalence point.
A compound contain 60.87% carbon, 4.38% hydrogen, and 34.75% oxygen then determine its empirical formula?
The pH at the ¼ neutralized point in the titration of a weak acid is 3.958. What is the pKa of this acid
you need to titrate 38.2 ml of an acetic acid solution ch3cooh. acetic acid is a monoprotic acid. you begin your
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