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What is the pH of a solution prepared by mixing 100 ml of 0.0500 M HCL with 300ml of 0.500 M HF? Ka(HF) = 7.1 x 10^-4
Boron nitride, BN, has a graphite-like layered structure in which the layers have eclipsed alignment where the B and N atoms in alternative layers in the direction perpendicular to the layers. Rationalize the difference between this structure and ..
if 2.3g of sodium reacted with 1.3g of water,what would be the total mass of sodium hydroxide and hydrogen produce?
Pure substances include: choose one below: elements only elements and compounds compounds and mixtures elements and mixtures all matter
How many grams of Br2 would there be in 8.00 moles of Br2?
The molar ratio of nitrogen to methane is known to be 0.26. Find the mole fraction and mass fraction of each component, and the average molecular weight of the mixture.
write the complete mechanism for the initiation and propagation steps using free radical notation for free radical notation mono-chlorination reaction of the alkane: 2, 4 - dimethylpentane.
Calculate osmolarity of 100 mg/dl Glucose. I ended up with 6.25 mOsm and the answer was 5.6 mOsm/L. MW Glucose: 180 g/mol
Solutions of AgNO3 and KCl are combined and 0.683 g of a precipitate are formed. What is the precipitate and how many moles were formed.
Calculate the number of 222Rn isotopes (t1/2 = 3.8 d) at the beginning and end of 25 days. Assume STP conditions.
An acid-base neutralization reaction is exothermic. For the measurement of the enthalpy of neutralization, the change in Hn(n is suppose to be a subscript), for the reaction, heat is inevitably lost to the calorimeter (beaker or styrofoam cup).
Calculate the gas NH3 in ppm over NH4OH solution.The density of the solution is 0.9g/ml and the Commercial concentrated aqueous ammonia is 29%.
How many moles of Ba(OH)_2 are present in 255 mL of 0.800 it M Ba(OH)_2?
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