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Many gases are shipped in high pressure containers. Consider asteel tank whos volume is 65L and which contains O2 gas at apressure of 16,500 KPa at 23 degrees celcius. What mass of O2 doesthe tank contain? What volume would the gas occupy at STP?
A glass vessel fitted with an on/off value has a mass of 337.428g when evacuated. When filled with Ar, it has a mass of 339.712g. When evacuated and refilled with a mixture of Ne and Ar, under the same conditions of temperature and pressure
Draw all of the resonance structure of SCP-.write formal charges on All atoms. point out which one has most likely resonance
1.285g sample of Na2SO4 is exposed to the atmosphere and found to gain 0.393g in mass. What is the percent, by mass, of Na2SO4*H2O in the resulting mixture of anhydrous Na2SO4 and the decahydrate
The concentration of carbon in a carbon-metal alloy is found to be 4.73x10^1 kg/m3. It is also known that the concentration of carbon in wt% in the alloy is 1.318x10^0 .
Calculate the work done when 25.0 g of tin dissolves in excess acid at 1.00 atm and 29°C. Assume ideal gas behavior.
What mass of Li2S is needed to prepare 300. mL of a solution having a litium ion concentration of 0.050 M
How many mL of .0100 M HCl should be added to how many grams of sodium acetate dehydrate at 5 degrees Celsius to prepare 250.0 mL of a 0.100 M buffer at a pH=5.00. At 5 degree Celsius Kw= 4.23*10^-15 and Ka (HC2H3O2)= 1.70*10^-5
When X rays of wavelength 0.096 nm are diffracted by a metallic crystal, the angle of first-order diffraction (n = 1) is measured to be 15.2°. What is the distance between the layers of atoms responsible for the diffraction?
A reaction taking place under standard conditions is sponteneous at 1000 K but is nonsponteneous at 300 k. What are the signs of delta Hrxn and delta S rxn
A solution of 2.00 g of para-dichlorobenzene (a clothes moth repellent) in 50.0 g of cyclohexane freezes at 1.05 degrees Celsius. What is the molar mass of this substance?
Suppose there are two known compounds containing the generic elements X and Y. You have a 1.00-g sample of each compound. One sample contains 0.32 g of X and the other contains 0.41 g of X. Identify plausible sets of formulas for these two compoun..
The dinitrogen oxide molecule has the atomic order NNO rather than the symmetrical NON arrangement. Suggest a possible reason.
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