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Elemental exonium (not a real element) consists of 2 major isotopes Abundance Mass 31% 95 amu,69%. 118 amuWhat is the atomic weight for exonium?
The density of chloroform, a widely used organic solvent, is 1.4832 at 20 . How many milliliters would you use if you wanted 119.0 of chloroform.
A nonelectrolyte solution adsorbs on an electrically neutral solid through a liquid. Two surfaces of this type are brought close to one another in the liquid such that they interact.
Determine the mass of carbon dioxide (in g) produced from the complete combustion of 1.40×10-2 g of C6H10 with excess oxygen.
A 10.00 ml sample of 0.254 M H2SO4 is titrated with 0.385 M NaOH. What volume of the NaOH solution, in mL, is required?
Seven tiny spheres of liquid mercury each have a diameter of 2 millimeters. They are now added together and coalesce into one larger drop. What is the diameter of this larger drop?
Solving this question helps the student to understand how to find the limiting reactant and how much product is produced and What mass of product may be produced?
N and H undergo a combination reaction under appropriate conditions, to yield ammonia: N2 (g) +3H2 (g) →2NH3 (g), determine how much sample of N2 in grams requires 3.0 g of H2 for complete reaction.
What is the pH of a 0.15M solution of HCOOH formic acid if the Ka of formic acid HCOOH is 1.8x10^-4 at 25 degrees Celsius.?
What technology or combination of technologies would you recommend for treating the following contaminated air streams?
how many mols of H 2 can produce
The well-preserved remains of a now extinct woolly mammoth is entombed in the permafrost lands of Siberia. Scientists have conducted carbon dating experiments on plant debris found in the stomachs of this mammoth.
The reported values for one compound (CaHbOc) were as follows: mass: 214.1360 g/mol; percent C and H: 84.07 and 8.47, respectively. Determine the molecular formula of the compound.
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