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According to the subsequent reaction, explain how many grams of tetraphosphorus decaoxide are necessary for the complete reaction of 32.9 grams of perchloric acid (HClO4)?
perchloric acid (HClO4) (aq) + tetraphosphorus decaoxide (s) phosphoric acid (aq) + dichlorine heptaoxide (g)
What are the percentages of each molecular ion? (List to nearest 1% in order of increasing mass separated by commas, e.g. 55,45.)
A voltaic cell is constructed with a Mg/Mg2+ (Eo = -2.370 V) half-cell and the Au/Au3+ (Eo = +1.500 V) half-cell. Which statement is correct for the spontaneous reaction
consider the following reactioncogh2ogin equilibrium with co2gh2kc102 at 500 ka reaction mixture initially contains
which of the four main categories of biological compounds-carbohydrates lipids proteins and nucleic acids-contains the
A 35.0 g sample of a nonelectrolyte was dissolved is 680. g of water. The solution's freezing point was -2.80°C. What is the molar mass of the compound?
determine the trend in sizes of the ions o2-n3- f- and also explain why does the trend exist? also describe which of
The acid dissociation constant for hypochlorous acid is 3.0X10-8. Calculate the concentration of H3O at equilibrium if the initial concentration of HClO ia 5.5x10-3M
An element has two common isotopes. 98.89% of its atoms have an atomic mass of 12.09 amu, whereas the other 1.11% have an atomic mass of 13.10 amu. Using the isotopic composition provided, calculate the average atomic mass of the element.
what is reduced and what is oxidized in this chemical equation: Zn+2HCl yields ZnCl2+H2
Determine whether kinetic energy is being converted to potential energy, or vice versa, in the following process. a) Water cascades downward in a waterfall. b) Electrolysis of water produces H_2 and O_2.
A 0.1510 gram sample of hydrocarbon produces 0.5008 gram CO2 and 0.128 gram H2O in combustion analysis. Its molecular weight is found to be 106. For this hydrocarbon, determine its empirical formula.
the compound is found to be 13.068% C and 86.932% Br. What is the molecular formula of the compound?
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