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what volume will 5.90 moles of sulfur hexafluoride (SF6) gas occupy if the temperature and pressure of the gas are 159 C and 5.50 atm, respectively?
Calculate the change in enthalpy and entropy of 50 g of liquid water starting at 10 degrees Celsius and completely evaporating into H2O gas at 100 C.
A 12.0-g sample of ice at -19.0°C is mixed with 115.0 g of water at 72.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
What is the pH of a buffer solution that is 0.211 M in lactic acid and 0.111 M in sodium lactate? The Ka of lactic acid is 1.4 × 10-4.
The initial mass of the crude ether was 141mg. The mass after recrystallization was 121mg. Calculate the percent recovery from recrystallization.
A mixture of gases contains 0.290 mol CH4, 0.240 mol C2H6, and 0.300 mol C3H8. The total pressure is 1.40 atm. Calculate the partial pressure of the gases.
what vibrational bands would be prominent in the Ir spectra of 3-aminoacetophenone and 1-(3nitrophenyl) ethanol? at approximately
Is 2-methyl-2-propanamine (C4H11N) a primary amine, secondary amine, tertiary amine, or quaternary ammonium salt? 2) Is N-methyl-2-propanamine a primary amine
what will be the volume of the blimp at a height of 2300 m, where the temperature is 12°C?
Why is lip gloss long lasting containing petroleum? How many metric tonnes of 5%-S coal would be required to yield the H2SO4 needed to produce a 2.0-cm rainfall of pH 2.00 over an area of 100 square kilometers?
Give the chemical equation for the reaction that occurs in (B) to reach equilibrium.
2.00 x10^2 mL of .744 M HCl is mixed with 2.00 x 10^2 mL of .372 M Ba(OH)2. how many moles of water are produced in the reaction
How many grams of sulfur (S) are needed to react completely with 355g of mercury (Hg) to form HgS?
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