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A sample of a gas occupies 1.40 x 103 mL at 25oC and 760 mmHg. What volume will it occupy at the same temperature and 380 mmHg?
A 64 L sample of dry air is cooled from 137°C to -20.°C while the pressure is maintained at 2.85 atm. What is the final volume
a graduated cylinder contains 10.0ml of water. if the volume of a single water molecule is 2.99 x 10e-23 cm e3 how many
A scientist measures the standard enthalpy change for the following reaction to be -1053.4 kJ : 2H2S(g) + 3 O2(g) 2H2O(g) + 2 SO2(g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of fo..
Calculate the % atom economy for the following two methods for converting benzene, C6H6, to aniline, C6H5NH2.
How many moles of N2 molecules are present in a 0.151 L sample of dry air at 0.0356 atm and 23.8 °C ? (The mole fraction of N2 = moles of N2 / total moles of dry air = 0.7809.)
KOH in a coffee-cup calorimeter at 23.50°C, the temperature rises to 30.17°C. Calculate H of this reaction per mole of H2SO4 and KOH reacted.
From the ln [reactant] as a function of temperature you can tell the reaction rate is first order if it is a linear curve ln[A]t = -kt + ln[A]o How is this equation derived
18.0 grams of oxygen is reacted with nitrogen to make 56.0 grams of nitrogen dioxide according to the following reaction: 2O2 + N2 --- 2 NO2
A mixture of the compounds magnesium chloride and sodium oxide contains 2.65 g of magnesium and is 82.5 % by mass magnesium chloride. The compound magnesium chloride is 25.5 % by mass magnesium. The compound sodium oxide is 74.2 % by mass sodium. ..
A solution consisting of .200 mol of methylbenzene (C6H5CH3) in 250 g of nitrobenzene (C6H5NO2)freezes at .40 degrees celsius
the combustion of propane illustrated by the following reaction releases 2428 kj per mole of reaction. a sample of
Find the final temperature of 10kg of iron metal, initially at 25degC, after the addition of 50000 J of heat
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