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If your chemistry book weighs 2 kgs, and you needed to lift the book from the floor to a shelf 150 cm high, calculate the energy in J required to lift the book from the floor to the shelf 100 times.
A 113L sample of helium at 27 degrees Celsius is cooled at a constant pressure to -78 degrees Celsius. calculate the new volume of the helium.
If the sample of the complex ion compound that you prepared had not thoroughly dried, but contained traces of water or ethanol would this make your value of x too high or too low? Or would it not affect your results at all? Explain.
What is the net charge on glucose 6 phosphate at pH 7.2? the pK's for glucose-6-phosphate are 0.9 and 6.0.
Give the empirical formula of the following compound if a sample contains 11.6g of iron and 5.01g of Oxygen
A gas mixture contains 76% nitrogen and 24% oxygen. If the total pressure is 1.16 atm what are the partial pressures of each component
what is the molar mass of gas if 0.250 g of the gas occupies 215 mL at 61 8mmHg and 30. 0C
calculate the distance (m) that a molecule of He would diffuse under the same conditions for the same period of time.
This given reaction: 2 O3(g) -→ 3 O2(g) has an empirically determined rate law (with a single unimolecular event). Determine what is the observed rate If k =4.0 × 105s-1, [O2] = 0.2M and [O3] = 0.5 M?
Calculate the terminal velocity of particles with a density of 1.3 g/cm3 and a diameter of 250 microns falling through water at 200 C
Write the chain propagation steps for the formation of dichloromethane in the chlorination of methane
Gold has a density of 19.3 g/cm3. How many pounds does a gold sphere weigh if it has a diameter of 5.20 inches?
If 32 mL of 6.8 M H2SO4 was spilled, what is the minimum mass of NaHCO3 that must be added to the spill to neutralize the acid ?
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