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Arrange the following from the smallest number of representative particles to the largest number of representative particles.
(a) 1.09 1025 atoms Zn(b) 3.59 mol Fe(c) 6.77 1022 molecules glucose (C6H12O6)
what mass of limestone is required to remove all the sulfur dioxide formed by the combustion of 9.2 X 10^4 kg of coal that is 0.33 mass % sulfur?
Find the temperature capable of expanding 2.500 liters of chlorine at 18.00°C and 0.9000 atm to 5.200 liters. No change in pressure took place.
The mass of a cube of iron is 324 g. Iron has a density of 7.87 g/cm3. What is the mass of a cube of lead that has the same dimensions?
How many grams of sodium formate, NaCHO2, must be added to 750.0mL of .250 M of formic acid, HCHO2, to obtain a buffer with pH of 5.5
A piston-cylinder device contains a saturated mixture of steam and water having a total mass of 0.5 kg at a pressure of 160 kPa and an initial volume of 100 liters
A student plans to titrate 25 mL of a .134 M HNO3 solution with .179 M NaOH solution. Calculate the volume of NaOH that will be needed to reach equivalence point.
500cm3 of 0.250M of Na2SO4 is added to an aqueous solution of 15.0g of BaCl2 resulting in a white precipitate of insoluble BaSO4.
Why does the electron energy threshold of dissociation almost always exceeds the actual dissociation energy in contrast to dissociation, stimulated by vibrational excitation
A compound contains 14.5 g of magnesium and 3.5 g of oxygen. What is the mass percent of oxygen in the compound?
A 757 mL gas sample at STP is compressed toa volume of 202 mL, and the temperature isincreased to 30 degrees C. What is the new pressureof the gas in Pa?
What is methanol's vapor pressure It boils at 65.0 °C and has a heat of vaporization ΔHvap = 37.4 kJ/mol. at 22.0 °C?
Calculate the Ki for a competitive inhibitor (I) form the following data. (Slope of reciprocal plot value: 0.1, 0.35, 0.5, 1.0, 1.5, 2.0)
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