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A sample of He gas (V = 3.0 L) at 5.6 atm and 25 °C was combined with 4.5 L of Ne gas at 3.6 atm and 25 °C in a 9.0 L flask (which was initially evacuated). What is the total pressure in the 9.0 L flask after mixing? Assume the temperature remains at 25 °C.
what is the molar mass of a gaseous element that Effuses through an opening of a box 1.12 times as fast as argon at the same temperature.
The J=0 to J=1 transition for carbon monoxide (12C16O) occurs at 1.153 X 10^5 MHz. Calculate the bond length of carbon monoxide.
The distance between layers in a crystal is 281 pm. X rays are diffracted from these layers at an angle of 19.0°. Assuming that n = 1, calculate the wavelength of the X rays in nm.
Determines the rate constant for this reaction and express and determine how many mL of a 0.157M solution of KOH is required to react with 0.385g of CH 3 COOH?
Determine what volume of .1 M HBr is required to neutralize 50 ml of .140 M Barium hydroxide and determine the normality of a solution consisting of 10.51 mg of NaOH in 591 mL of solution
A scientists places 4.00 moles of Argon, Ar (g) and 2.00 moles of Helium, He (g) into a flask at the temperature of 298 Kelvin and measures the pressure to be 3.00 atm. calculate the pressure due to Helium gas?
Explain the structure of the main mononitration product(s) of 3 bromo 1 nitrobenzen?
determine How many formula units(formula un) of sodium iodide(NaI) are present in 9.54 grams of this compound and also calculate how many gms of sodium iodide are present in 6.07E+21 formula units of this compound.
Calculate how the amount of AgCl(s )will change when the equilibrium is disturbed by Adding AgNO 3
What is the Molarity of a solution prepared by diluting 55mL of .65 M hydrochloric acid solution to a final volume of 155mL by adding water.
Compute the mass of Trisodium phosphate required to remove all Ca^2+ ions from 2.50 Litres of the H 2 O sample?
Calculate the [Cr+3] in equilibrium with Cr(OH)4-(aq) when 0.010 mol of Cr(NO3)3 is dissolved in a liter of solution buffered at a pH of 7.3. Kf for Cr(OH)4-(aq) is 8.0 x 1029.
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