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Calculate the de Broglie wavelength of a 143g- baseball traveling at 90mph ?
Calculate the energy in joules and calories lost when 10.0 gm ethanol, {C_2H_5OH}, cools from 62.5 0C to -46.0 0C?
Calculate the Î"S for a gas in a closed system that is an ideal monatomic gas initially at P= 5 atm, V=5L, and T = 310 K which expands to V= 10 L and its temperature is increased to 390 K
How many moles of NaOH would be required to completley neutralize 37.22mL of 0.25M HCl.
A gas occupying 28 mL at standard conditions is heated to 13?C while the pressure is reduced to 0.84119 atm. What is the new volume occupied by the gas.
If one mole of ATP yields 7 kcal of energy, how much energy would be available from the anaerobic catabolism of 270 g of glucose (C6H12O6)? Show your work.
Understanding of Chemistry basics - explain a situation that violates the second law of thermodynamics?
What is the minimum volume of 7.0M HCl required to completely dissolve 14.0 grams of magnesium metal?
Identifying An Unknown Liquid And Precipitate. A high-boiling bp = 202 - 204 degrees C, burns with a yellow, sooty flame. Sodium fusion indicates that halogens, nitrogen and sulfur are not present. It is not soluble in water, dilute sodium bicarbo..
An enclosure of volume 0.398 L has a partial pressure of O2 of 3.50 10-6 torr at 30.°C. What mass of magnesium will react according to the following equation. 2 Mg(s) + O2(g) → 2 MgO(s)
Elements cannot be decomposed by chemical means, but can be decomposed by physical means.
What is the Molarity of a solution prepared by diluting 55mL of .65 M hydrochloric acid solution to a final volume of 155mL by adding water.
Determining mechanism of a reaction, 2,3-Dimethyl-2,3-butanediol (pinacol), upon heating in aqueous acid, rearranges to form 3,3-dimethyl-2-butanone (pinacolone)
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