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The empirical formula for the hydride of sulfur is H2S, and its central atom is sulfur. Based on this information, you would expect the empirical formula for the hydride of selenium, Se, to be _____, and its Lews Structure to be ____.
What is the millimolar concentration of dissolved oxygen for a lake or stream under the partial pressure of oxygen and a temperature of 12?
If the pressure exerted by ozone,O3 , in the stratosphere is 3x10^-3 and the temperature is 246 K, how many ozone molecules are in a liter?
The volume of isoamyl alcohol reactant is 20.0 mL and the density of isoamyl alcohol is 0.809 g/mL. I need to find the mass and moles of isoamyl alcohol.
The pressure of the gas remaining in the vessel of unknown volume was 0.882 atm. All the measurements were done at the same temperature. What is the volume of the vessel?
Calcuate the molalities of MgSO4, Mg2+, and SO4 in a 0.05000m solution of MgSO4 at 25 degree and at 250 degree. Find the appropriate log K's in Soltherm
A 2.55 g sample of naphthalene (C10H8) is dissolved in a 30.0 g of benzene (C6H6). Benzene freezes at 5.50 degrees C and the resulting solution freezes at 2.13 degrees C. What is the freezing point depression constant, K sub f, of benzene?
Rank the diffusion coefficients from least (1) to greatest (4) for the following cases. Assume the temperature is the same for all cases. 1-4 Interdiffusion C in gamma-Fe
H2O is amphoteric meaning it can act as both a Bronsted acid and a Bronsted base.Show that H2O really is amphoteric by writing the relevant equations
why was nortripyline measured here? was there post-mortem redistribution? Explain.Were amitriptyline and nortriptyline over the toxic dose? Acute overdose/rapid death or chronic administration/show death? Explain
Helium gas at constant pressure of 7.4 atm, expands in volume from 21.3 L to 79.2 L. The temperature is held at 278 K. Calculate the work done by the gas (in joules).
Benzene is a organic solvent with the formula, The volume occupied by 1 micromole of liquid benzene and the volume occupied by 1 megamole of benzene as a vapor at STP (assume an ideal gas)
Need to prepare a solution of 0.2 L 0.4 M then determine how many cm^3 of a solution of H2SO4 (sulfuric acid) 80.0%
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