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indicate whether each of the following solutions are acidic, basic, or neutral at 25 degrees C: a)[H3O^+]=6.0x10^-12 M b)[H3O^+]=1.4x10^-4 M c)[OH^-]=5.0x10^-12 M d)[OH^-]=4.5x10^-2 M
If the ph of Rainfall in Upstate New York is Found to be 4.0, and if the acidity is half due to Nitric acid (HNO3) and half due the two Hydrogen Ions released by Sulfuric acid
A water pipe fills a container that measures 189 cm , 307 cm ,272 cm in 97 seconds, What is the rate of flow in the pipe in liters per minute.
Suggest a reason why the cyclic intermediate in the formation of methyl-e-4-methoxycinnamte from p-anisaldehyde, might have two important groups in a trans relationship
A 4 g sample of the hydrated crystal Ba(OH)2• χH2O is heated until all the water is removed. The remaining solid weighs 2.17 g. Calculate the formula of the hydrated crystal.
Given the following equilibrium constant at 25 C, calculate the equilibrium constant for the unknown reaction below.
Explain how the calculated formula of the hydrate would be changed if water from the air is absorbed by the hot dry sample as it cools.
A pound of coffee beans yields 50 cups of coffee (4 cups = 1 qt). How many milliliters of coffee can be obtained from 5 g of coffee beans?
What determines whether a group on a benzene ring will be activating or deactivating and ortho para
Another student was in a hurry and stopped heating, even though bubbles were still emerging from the rubber tubing. 3.) A student used the measure of Flask no.1 to be 250mL, without measuring the volume as directed
the exhaled air contains 6.2% H2O and 15.3% O2 by volume. How many moles of H2O are expelled from the body each minute? How many moles of O2 are absorbed by the body each minute?
A solution containing 6.3 X a0^-8 M benzene and 2.0 X 10^-7 M cyclohexane gave peal areas of 3950 and 4870, respectively, in a GC experiment.
A gas-filled balloon having a volume of 4.00 L at 1.2 atm and 25°C is allowed to rise to the stratosphere (about 30 km above the surface of Earth), where the temperature and pressure are -23°C and 3.00 multiplied by 10-3 atm, respectively. Calcula..
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