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A gaseous mixture of and contains 34.8 nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 305 ?
A coffee can (with diameter of 6.0 inches, a height of 6.5 inches and a massof 256 g) has a 1 cm diameter hole drilled in the bottom of the can and another drilled in the side. The can is capped, inverted, and completely filled with methane
A mixture of N2, O2, and CO2 has a total pressure of 791. torr. In this mixture the partial pressure of N2 is 115. torr and the partial pressure of O2 is 193. torr.
derive an expression for the compression factor of a gas that obeys the equation of statenbsp pv - nb nrt where b and
What is the volume of dry gas at STP of a gas collected over water that has a volume of 596 mL at 40 C and pressure of 101KPa
when oxygen is in use in hospital room,no smoking signs are usually posted prominently. Explain.
The solubility of air in water is approximately 2.1 x 10^-3 M at 20 degrees C and 1.0 atm. Calculate the Henry's lay constant for air. Also, is the K(H) value of air approximately equal to the sum of the K(H) values of N2 and O2 because these two ..
200 mL of 1.00M NaOH is reacted with 200 mL of 1.00 M HCl in a calorimeter. The calorimeter and the solutions were at an initial temperature of 19.5oC before mixing.
Gastric juice is made up of substances secreted from parietal cells, chief cells, and mucous-secretig cells. The cells secrete HCl, proteolytic enzyme zymogens, mucin, and intrinsic factor. The pH of gastric juice is acidic, between 1-3.
An unknown compound was decomposed and found to be composed of 1.36 mol oxygen, 4.10 mol hydrogen, and 2.05 mol carbon. What is the empirical formula of the unknown compound?
A cube of osmium metal 1.500cm on a side has a mass of 76.31g at 25°C. Calculate the mass of 0.1500L of benzene at this temperature.
How many grams of aluminum hydroxide are obtained from 18.2g of aluminum sulfide?
If 26.96 mL of a standard 0.1650 M NaOH solution is required to neutralize 27.37 mL of H2SO4, what is the molarity of the acid solution
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