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In terms of mass, name the fouth most abundant element in the universe.
Adipic acid with two molecules of ethylamine, Write an equation for the formation of the salt that could be formed by reaction of one molecule of adipic acid
Given that the tablet contains only calcium carbonate and an inert binder, write balanced molecular and net ionic equations for both reactions that take place. Calculate the mass and mass percent of calcium carbonate n the tablet
Calculate the pH of a solution prepared by mixing 15.0mL of 0.10M NaOH and 30.0mL of 0.10M benzoic acid solution. (Benzoic acid is monoprotic; its dissociation constant is 6.5x10^-5.)
An unknown compound with a molecular formula of C8H18 reacts with chlorine in the presence of light and heat. From the reaction, only one compound with the formula C8H17Cl can be isolated. What is the structure of the original unknown compound?
Calculate the conditional formation constant Kf for the formation of an EDTA complex with copper (II) at a pH of 5.00, if log Kf= 18.80
A certain mixture of He and Ne in a 356 cm3 bulb weighs 0.1480 g and is at 20.0 oC and 748 torr. Find the mass and mole fraction present.
converting liquid water to solid ice releases 1.44 kcalmol.awhat is the sign of delta h for this process?bhow many
Suppose A 5.0mL sample of vinegar was titrated with 7.2mL of 0.55 M NaOH(aq). If the density of the vinegar solution is .00 g/mL, explain what is the mass percent of acetic acid present
earths oceans have an average depth of 38000m a total area of 3.63108km2 and an average concentration of dissolved
The reaction between nitric oxide (NO) and hydrogen is thought to proceed via the following mechanism. Do not make any assumptions about which step is rate determining
what volume of hydrogen at STP is produced from the reaction of 50.0g of Mg and the equivalent of 75g of HCl?
Use the preceding data but consider the process to occur in two steps. At the end of the first step, the volume is 7.0 L. The second step results in a final volume of 10.5 L. Calculate the work done, and indicate the correct sign.
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