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Assuming a pressure of 1.00 atm, and a temperature of 25 Celcius, calculate the volume of hydrogen that should form from the mass of aluminum used in this experiement? The mass of aluminum is 2.004 grams.
If you dilute 21.0 mL of the stock solution to a final volume of 0.500 L, what will be the concentration of the diluted solution?
An airplane is pressurized to 650 mmHg, which is the atmospheric pressure at a ski resort at 13000 ft altitude: a) if air is 21% oxygen, what is the partial pressure of oxygen on the plan
Iridium-192 has a half-life of 74 days. What fraction of a sample of this isotope will remain after 222 days
Using the definitions for 'oxidation' and for 'reduction', identify the exact species that is getting oxidized and species that is getting reduced in each of the following redox reactions:
Which silver salt will precipitate first? Show calculations to support your answer. What is the concentration of Ag+ when the first precipitate begins to form?
if the molar enthalpy of water is 6.009 kjmol how much energy is needed for 4.5 moles of ice to melt at
Determine the molarity of a solution formed by dissolving 15.79 grams of CaCl 2 , calcium chloride in 200.grams of H 2 O, water?
contains 17.0 moles of carbon atoms. How many total moles of atoms does the sample contain?
a solution of ethanol c2h5oh in water is prepared by dissolving 65.7 ml of ethanol density 0.79 gcm3 in enough water
An electron can freely move inside a 500pm x 500pm square box. Find the five lowest energy levels for this electron. Which of them are degenerate?
what is the order of increasing stability: Li2,Li2+,Li2-?
Choose the answer in which the oxide with the formula given is correctly characterized as ionic or molecular.
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