Gas expand at constant temperature
A gas occupying a volume of 428 mL at a pressure of 0.970 atm is allowed to expand at constant temperature until its pressure reaches 0.541 atm. What is its final volume?
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What conversion factor is present in almost all stoichiometry calculations?
Sulfuric acid is a diprotic acid with the formula H2SO4. Phosphoric acid is a triprotic acid with the formula H3PO4. Which will have a lower pH as aqueous solutions? A 1 M solution of H2SO4 or a 1M solution of H3PO4? Explain with words and equatio
A stainless steel spoon weighs 25.2 g and is at a temperature of 18.5 oC. It is immersed in 81.7 mL of hot coffee (T = 84.0 oC) in a Thermos flask. What is the final temperature of spoon + coffee? (Assume that the heat capacity of the spoon is the
Many hoped an investment by the current administration in clean energy would improve our electric grids and create the so called 'smart' electric grids that will increase the efficiency and operability of the nation's old, inefficient system.
The transverse shear V at a certain section of timber beam is 25kN. if the beam has the cross sectio shown in the figure.
Compare the bonding in S-Cl with S-OH in Sulphur (VI) compounds and attempt to rationalise the reactivity of the chloro-derivatives of Sulphuric acid with water?
What is the rate constant of a first-order reaction that takes 2.50 minutes for the reactant concentration to drop to half of its initial value?
A phosphorous acid buffer needs to be prepared to a pH of 5.92; given a 120mL solution of 25mM phosphorous acid, how many milliliters of either 0.5M KOH or 0.4M HCl will need to be added to the solution to reach the desired pH?
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