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If the cylinder is full of air at 72 C and 0.980 atm , how many moles of O2 are present. (The mole fraction of O2 in dry air is 0.2095.)
in the barium chloride laboratory activity what change occurred in the physical appearance of the barium chloride
Cake alum, aluminum sulfate, is commonly used to purify sewage. What mass of precipitate, aluminum hydroxide, forms whn 185.5 mL of 0.533 M NaOH is added to 627 mL of a cake alum solution that contains 15.8 grams per liter
If the solution has the same density and specific heat as water, what is ?H for this reaction (per mole of H2O produced)? Assume that the total volume is the sum of the individual volumes.
What is the FORMULA for the limiting reagent? What is the maximum amount of carbon dioxide that can be formed in grams? What amount of the excess reagent remains after the reaction is complete in grams?
Draw the expected d-orbital splitting for the d-orbitals in a trigonal planar complex ion. Assume the z-axis is perpendicular to the plane of the complex. In a couple of sentences, explain the logic behind your splitting diagram.
A box of nails contains 90 straight nails and 10 nails too bent to be used. You randomly select 10 nails from the box. What is the probability that you removed 8 straight nails and 2 bent nails? To find the probability, first derive a general expr..
Copper metal and zinc metal react differently in the presence of certain acids. For example, while both react with concentrated nitric acid and dissolve completely, only zinc reacts and dissolves in dilute hydrochloric acid.
What will be the major product of the reaction of 2-methyl-2-butene with Br2/NaCl? And what is the reaction
Consider the gas phase reaction 2 HCL = H2 + Cl2 for which Kc = 16 at 523 Kelvin. If .030 moles of HCl is introduced into a 1 L vessel at 523 K
consider the following reaction where x represents an unknown element6xs 2b2o3s rarr b4x3s 3xo2gif 175 g of x reacts
How many Valence electrons does a balanced atom of Sodium have? What is the net charge on each ion?
A mixture containing 8ml cyclohexane, 8 ml p-xylene, and 8 ml dichoromethane was distilled. how to caculate the mole percent composition of p-xylene
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