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Air at 0°C and atmospheric pressure flows horizontally at a speed of 0.5 m/s through a collection chamber 4 m high and 20 m long. The air carries particles with a density of 1600kg/m3 . What is the minimum diameter of particles that will be collected in the chamber?
illustrate the reaction that would form a carboxylate ion from 2-Methylbutanoic acid. Write the IUPAC name for the ion that forms. Can you please show the condensed format versus the line angle?
The following reaction was allowed to reach equilibrium at 25°C. Equilibrium concentration is given for each component. Calculate the equilibrium constant, K, for this reaction.
The activation energy of a certain reaction is 45.4kJ/mol. At 28 degrees celcius, the rate constant is 0.0150s^?1. At what temperature in degrees Celsius would this reaction go twice as fast?
Sketch a series of titration curves for the titration of a strong acid with a strong base where the concentration of the acid is 10-1, 10-2, and 10-3 mol dm-3 respectively. Explain why the choice of indicators is restricted at different acid conce..
What is the Heisenberg Uncertainty principle? How did this change how we view electrons around a nucleus? Does this support the Bohr Theory?
Problem- Calculate the Molarity of NA+ in an aqueuous solution prepared by dissolving 1.00g of NACL(S) in water, and the final volume of the solution is 10.0 L Note g is the gram unit, and L is the liter unit.
Question- Determine the pH at 25 degrees celcius of a solution prepared by dissolving 0.31 mole of ammonium chloride in 1.00 L of 0.48 M aqueous ammonia.
A quantity of ice at 0°C is added to 66.4 g of water in a glass at 55°C. After the ice melted, the temperature of the water in the glass was 15°C. How much ice was added? The heat of fusion of water is 6.01 kJ/mol and the specific heat is 4.18 J/(..
A Solution of 1.69g of this compound in 9.23g of benzene freezes at 2.18 degree celsius. What are the molecular formula and molar mass of the compound? ( the normal freezing point of pure benzene is 5.50 degree celsius)
the enthalpy of formation = 0? Something with standard states? But how do I know what the standard states are
An atomic emission spectrum of hydrogen shows three wave lengths : 1875 nm, 1282 nm, 1093 nm. Assign these wavelengths to transitions in the hydrogen atom. If you could just do one wavelength, that would be great.
evaporate more quickly: 55 mL of water in a beaker or 55 mLmof acetone in an identical beaker under identical conditions?
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