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SnI4 is soluble in acetone. Explain what does this tell you about the ionic nature of this compound? Is the charge on the tin is actually +4? Explain what was the effect of adding KI to the acetone solution?
If 2.0 x 10^23 argon atoms strike 4.0 cm^2 of wall per second at a 90 degree angle to the wall moving with a speed of 450 m/s. what pressure (in atm) does the gas exert on the wall
A solution contains .60 M NH4OH and 1.5 M NH4Cl. what is the maximum concentration of Mg2+ that can be present in such a solution without precipitating Mg(OH)2
what is the pressure exerted onto the closed end of an apparatus if the atmospheric pressure is 720 torr and the height
The normal boiling point of methanol is 64.7 degrees C. A solution containing a nonvolatile solute dissolved in methanol has a vapor pressure of 450.7 torr at 64.7 degrees C.
How many grams of a solid magnesium chloride could you add to 1L of 0.25M NaOH solution before a permanent precipitate formed
A 0.456 gram sample of an unknown monoprotic acid (let's call it HZ) was dissolved in some water (you pick the amount). Then the acidic solution was titrated to the equivalence point with 32.5 mL of 0.174 M KOH.
State a 0.150 M solution of an enantiomerically pure chiral compound D has an observed rotation of +0.14 in a 1-dm sample container. The molar mass of compound is 149.0 g/mol. Define the specific rotation of D
Define the first step in preparation of the metal lead from its ore is to roast the galena ore to make lead oxide
A student carried out a recrystallization and obtained a 105% yield of material with a broad melting point. The material was warmed gently resulting in a recalculated yield of 87% and a sharper melting point. Briefly explain these observations.
the world's estimated annual gas reserves in 2006 were 6124 trillion ft3 .The world rate of annual use was 105.5 trillion feet3. How long these reserves will last if the rate of use continues?
Assuming that the resolution of an electron microscope is equal to the de Broglie wavelength of the electrons used, to what speed must the electrons be accelerated to obtain a resolution of 0.30 {nm}
Given that the enthalpy of vaporization for water at its normal boiling point is 40.69 kJ/mol, calculate q, w, and delta U for vaporizing 5.00 mol at 100 degrees C in an open container at 1.00 atm.
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