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What is the pH of a 0.31 M solution of arsenic acid, H3AsO4? In this solution, what are the concentrations of H2AsO4- and HAsO42-?
Its volume has been accurately determine to be 3226.7kj/m. 2.5127 gm benzoic acid are burned in a carorimter the temperatuer rises from 20.84 to 25.67degree. What is the heat capacity of the bomb.
The density of so-called "heavy water"=1.1053 g/mL at 20 0C. determine what would be the mass of the flask when filled with heavy water?
Explain the terms resonance and delocalized electrons. why do we draw resonance structures
A copper cube measuring 1.58cm on edge and an aluminum cube measuring 1.68cm on edge are both heated to 56.4 degrees C and submerged in 100.0mL of water at 21.6 degrees C. What is the final temperature of the water when equilibrium is reached? (As..
Which group 5 oxide dissolves in water to give the most basic solution. A) As4O10 B) P2O5 C) N2O5 D) P2O3 E) Bi4O6
Sulfuric acid (H2SO4) is prepared commercially from elemental sulfur using the contact process. In a typical sequence of reactions, the sulfur is first burned
A molecule has the empirical formula C3H7 and has a density of 3.844g/L at STP. If one mole of this gas is burned completely in excess oxygen, how many moles of CO2 are produced
when 3-hydroxycyclobutanone is treated with mid base, 1,3,5-triacetybenzene is formed in 50% yield.
A solution of selenium-75, a radioisotope used in the diagnosis of pancreatic disease, is found just prior to administration to have an activity of 44 uCi/mL. How many milliliters should be administered intravenously for a dose of 175 uCi
the heat of combustion of c10h18 is -6286 kj/mol. the heat of combustion for c10h8 is -5157kj/mol.
a pure rock sample believed to be pure calcium carbonate is subjected to chemical analysis and found to contain 51.3
Which element in the periodic table has the smallest ionization energy?
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