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Consider the following chemical reaction 2H2O(l) >2H2(g) + O2 (g)what mass of H2O is required to form 1.2L of O2 at a temperature of 295 K and a pressure of 0.967 atm?
26.0cm of a solution containinh 1.86g of X2CO3 in 250 reacted completely with 27.0cm of solution contain 3.65g of HCL per dm,calculate the molar mass of X2CO3 and relative atomic mass of X, and identify X.
An alien rocketship is traveling at a speed of 40 inches per minute. At this speed, how many feet will it travel in 1 second? Round to the nearest thousandth.
What is the freezing point in of a solution prepared by dissolving 4.80 of in 110 of water. The value of for water is 1.86 , and the van't Hoff factor for is = 2.7.
The Keq for imidazole binding to hemoglobin can be determined from the following linear equation: 1/?A100Keq * 1/[lm +1/?A100=(1/?A) a. For the plot of the reciprocal of the change in absorbance versus the reciprocal of the imidazole concentration..
An infant acetaminophen suspension contains 80 0.80 suspension. The recommended dose is 15 body weight. How many of this suspension should be given to an infant weighing 11. (Assume two significant figures.)
an atom has an electron with energy -9.00e-19 j. it absorbs a photon and moves to a new level with energy -4.00e-19 j.
The value of Ksp for silver sulfate, Ag2So4 is 1.2x10-5. Compute the solubility of Ag2So4 in grams per liter
There are two stereoisomeric 1,3-cyclobutane carboxylic acids. one can form a cyclic anhydride, the other can not. draw the structures of theses compounds and indicate which one can be converted to a cyclic anhydride. explain
Uranium hexafluoride is a solid at room temperature, but it boils at 56°C. Determine the density of uranium hexafluoride at 62°C at 755 torr.
Describe the bonding in a) KSCN, b) Fe(NO3)3, c) and the product of the reaction between a) and b). 2. Write net ionic equations for all positive reactions that take place.
where a is constant and -infinity
If a propanoic acid/propanoate buffer is .020M in propanoic acid and has a pH of 4.63, what is the molar concentration of the propanoate ion. The pKa of propanoic acid is 4.89.
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