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Consider the following reaction that occurs at STP:what mass of N2 gas is needed to react with 12g H2 gas
unknown concentration of sodium hydroxide for complete neutralization. What is the molarity of the sodium hydroxide solution?
NMR of D exhibits resonance at -4 ppm. - On heating D, a flammable gas and A are formed. - Reaction of C with CH3I affords white solid E whose proton NMR shows a single resonance around 0.2 ppm. Identify A-E.
When X amount of moles of glucose are dissolved in 5.60 x 101 mL of solution, the Molarity is 3.47 M. What is X
Radio waves travel at the speed of light, 3.00x10^8 m/s. if you were to broadcast a question to an astronaut on the moon, which is 239,000 miles from earth, what is the minimum time that you would have to wait to receive a reply
You have 135.8 mL of a 2.50, solution of Na2Cr04 (aq). You also have 125 mL of a 2.50 M solution of AgNO3. Calculate the concentration of Na+ after the two solutions are mixed together.
If a solution contains 28 g of potassium nitrate per 100 g of water at 25 degrees Celsius, is the solution unsaturated, saturated, or supersaturated
If the test of such a breath sample yields a reading of 0.08%, what are the partial pressure and mole fraction of CH3CH2OH in the breath of the person who was tested? Assume the atmospheric pressure and temperature are 101 kPa and 21.0 oC, respect..
The pH of the solution at the equivalence point, The pH of the solution after 40.0 mL of HCl are added.
Assume that the products are carbon dioxide and water. Answer the following question: If ONE mole of iso-octane is burned, how many mols of water are formed
A saturated solution of lead(II) chloride was prepared by dissolving PbCl2 solid in water. The concentration of Pb+2 ion in the solution was found to be 1.62*10^-2M . Calculate Ksp for PbCl2 .
how many moles of na2s2o3 react with each mole of kio3 used in the standrdization? what is the oxidition state of a cl in ocl- ,and s in na2s2O3?
what would its speed be just before striking the ground? Ignore the effects of air resistance
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