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Given this data for oxygen (O2), sketch its phase diagram. Label: solid, liquid, gas, normal boiling point, normal melting point, triple point, and critical point. (Axes need not be to scale.)
Melting point: -218°C Boiling point: -183°C Triple point: -219°C; 1.1 torr Critical point: -119°C; 49.8 atm
a metal weighing 50.0g absorbs 220.0 J of heat when its temperature increases by 120.0 degrees celsius. what is the specific heat of this metal?
Glass cuvette, used for precision measurements in a spectrometer, are marked so that they always have the same orientation in the sample compartment. What error does this minimize and why?
for the reaction 2a b --gt 2c if b is initially 4.0m and 2min later is 3.0m what is the rate of appearance of
celsius absorbs 281kJ of heat from a mountain climber's stove at an elevation where the boiling point of water is 89 degrees celsius, how many kJ are required to boil the water?
assuming complete dissociation of the solute how many grams of kno3 must be added to 275 ml of water to produce a
a 255- flask contains pure helium at a pressure of 753 . a second flask with a volume of 465 contains pure argon at a
Using standard reduction potentials, calculate the equilibrium constants for the following reactions.
A student heats 5.128 g sodium bicarbonate to completely decompose the sample to sodium carbonate. 3.2349 g of sodium carbonate was produced. Calculate the atom economy of this reaction.
The decomposition of N2O to N2 and O2 is a first- order reaction. At 730°C the half-life of the reaction is 3.58 X10^3 min. If the initial pressure of N2O is 2.10 atm at 730°C, calculate the total gas pressure after one half-life.
Hydrogen sulfide () is a common and troublesome pollutant in industrial wastewaters. One way to remove is to treat the water with chlorine
1. A corrosion technologist pipetted a 100.00 mL hard water sample and titrated it with 37.64 mL of 0.01 M EDTA solution for a total hardness endpoint, and 29.32 mL of 0.01 M EDTA solution for a calcium endpoint.
bismuth oxide reacts with carbon to form bismuth metal bi2o3s3cs -gt 2bis3cogwhen 355g or bi2o3 reacts with excess
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