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What is the vapor pressure of propane at 25 C? its normal boiling point is -42C and deltaH of 19.04 kj/mol.
How many grams of copper (II) sulfate are required to prepare 500 mL of a .25 M solution
NaOH is added to K2CrO4 and K2Cr2O7 separately in test tubes and a color change is noted.
A gas occupies 4.71 liters at 62°C and 795 torr. What volume will it occupy if it is cooled to 17°C and compressed to 911 torr?
One mole of a monatomic ideal has at a temp of 500K and 6atm pressure is subjected to the following changes: (all are reversible changes)
The H3O+ concentration of a 0.10M solution of acetic acid decreases when which of the following substances are added?
If your front lawn is 15.0 feet wide and 20.0 feet long, and each square foot of lawn accumulates 1350 new snow flakes every minute, how much snow (in kilograms) accumulates on your lawn per hour?
The reduced coenzymes generated by the citric acid cycle donate electrons in a series of reactions called the electron transport chain. The energy from the electron transport chain is used for oxidative phosphorylation.
A microwave oven operates at 2.70 . What is the wavelength of the radiation produced by this appliance
An open flask contains .200 mol of air. Atmospheric pressure is 745 mm hg and room temperature is 68 degrees Fahrenheit. How many moles are present in the flask when the pressure is 1.10 ATM and the temperature is 33 degrees Celsius
The electron in the n = 5 level of a hydrogen atom emits a photon with a wavelength of 1280 nm. To what energy level does the electron move?
The mixture is ignited with a spark and it reacts to form H2O (l)liquid water. determine the temperature of water?
What is the empirical formula of a compound that is composed of 1.67 g of cerium and 4.54 g of iodine.
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