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A beaker has a mass of 225.08g. When a liquid is added to the beaker, the combined mass is 238.254g. What is the mass in grams of the liquid
How much limestone in kg is need to completely neutralize a lake containing -- of H2 per liter? 5.0 * 10-3g SO4 5.2 * 10^9-L.
what mass of stomach acid will neturalise an antacid tablet containing 0.1g of magnesium hydrogen carbonate
A 300.0-mL saturated solution of copper(II) peroidate (Cu(IO4)2) contains 0.44 grams of dissolved salt. Determine the Ksp.
The results of the experiment supported the hypothesis of semiconservative replication, which was proposed by Watson and Crick.
Calculate the volume of carbon dioxide formed at a pressure of 2.50 atm and a temperature of 1250C.
What happens to the pattern if we try to determine which slit the electron goes through by using a laser placed directly behind the slits
A student plans to titrate 25 mL of a .134 M HNO3 solution with .179 M NaOH solution. Calculate the volume of NaOH that will be needed to reach equivalence point.
When diborane (B2H6) dissociates in either solvents, such as tetrahydrofuran (THF), a complex between borane (BH3) and the ether is formed. (a) In the Lewis sense, what is the function of BH3 as it forms the complex? Explain.
At a given temperature the vapor pressures of benzene and toluene are 183mm Hg and 59.2mm Hg. Calculate the mole fraction of benzene in the vapor phase over a solution of benzene and toluene with Xbenzene=0.600
Given the following data (?Hf, S°, respectively) for N2O4(l) -20. kJ/mol, 209.0 J/K mol, and N2O4(g) 10. kJ/mol, 303.7 J/K mol. At what temperature (in °C) does the vaporization of N2O4 liquid become spontaneous
Sodium chloride, NaCl, is a strong electrolyte, as is hydroiodic acid, HI. Write the chemical equations for what happens when these substances are added to water.
A pair of theoretical enantiomers is named below. For each stereoisomer, draw the structure. Be sure to specify the stereochemistry via wedge-and-dash bonds.
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