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A student observed after an experiment that a gas sample of 250-mL has a mass of 0.243 g at a temperature of 28 degree Celsius and a pressure of 760 mm Hg. determine the molar mass of the gas if R=0.0821 L atm / mol K?
Using a gas sample that initially has volume of 24.6 L at a pressure of 1.04 atm then determine what would the pressure be if the volume of this sample gas is decreased to 5.38 Litre also state that which law of gas is used in this process?
aluminum may be formed by the passage of 60,714 C through an electrolytic cell that contains a molten aluminum salt.
Identify the incorrect names or formulas.
Calculate pCu at the equivalence point in the titration of 20.0 mL of 0.0161 M CuSO4 with 0.0100 M EDTA at pH 8.00.
What is the magnitude of the electric field amplitude associated with the beam and the corresponding photon density per cm3?
Given that Kw for water is 2.4× 10-14 at 37 °C, compute the pH of a neutral aqueous solution at 37 °C, which is the normal human body temperature.
Using the Boltzmann distribution given below, determine Jmax (quantum number of the most intensely populated rotational state) as a function of temperature. Then find Jmax for CN+ at 298 K and 1100 K.
At equilibrium the total pressure was 1.00 atm and the NOCl prssure was 0.27 atm. 2NOCl(g) &hArr 2NO(g) + Cl2(g) Calculate the partial pressure of NO and Cl2 in the system
what is steam distillation and why is it a preferred technique to purify high boiling liquids that are water-insoluble
When a solution of sodium sulfate, Na2SO4, adjusted to a pH of 7 is electrolyzed, red litmus and a gas is evolved in the anodic chamber. In the cathodic chamber, red litmus turns blue and a gas is also evolved.
Several new pieces of equipment are being used in the experiment along with all previous equipment. Using the internet, briefly state why we are using each piece of equipment in this experiment and illustrate with a picture.
a) what is the new volume if 0.500 mol of O2 gas is added? b) Oxygen is released until the volume is 10.0 L. How many moles of O2 are removed? c) What is the volume after 4.00 g of He is added to the 4.80 g of O2 gas in the container
Nitrogen and hydrogen gases react to form ammonia gas as follows: N2(g)+3H2(g)-->2NH3(g) At a certain temperature and pressure, 1.7 L of N2 reacts with 5.1 L of H2. If all of the N2 and H2 are consumed, what volume of NH3(g) is produced at the sam..
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