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When X-rays with a wavelength of 154 pm (pm = 10^-12 m) are diffracted from an unknown crystalline compound, the first reflection occurs at theta= 4.24 What distance does that correspond to? (assume n =1)
If 25 mL of 0.060 M HClO4 is mixed with 50 mL of 0.060 M KOH, what will be the resulting pH?
Write the Bronsted-Lowry chemical equation describing how HC4H7O2 behaves when add to water
Define the terms exothermic and endothermic. In a calorimetric experiment, how does one determine whether a reaction is one or the other?
Calculate the mass of silver chloride required to plate 215 mg of pure silver if silver chloride contains 75.27% Ag.
How many liters of chlorine gas, measured at STP, would be produced by the electrolysis of molten sodium chloride using a current
The vapor pressure of benzene (C6H6) is 40.1 mm Hg at 7.6 C. The delta H vap=31.0 KJ/mol, what is benzene's vapor pressure at 60.6 C?
The normal freezing point of water H2O is 0.00 oC and its Kf value is 1.86 oC/m. Assuming complete dissociation of the electrolyte,
The following ions contain the same number of electrons. Rank them in order of decreasing ionic radii.
what is the maximum pressure that will be attained in the tank before the plug will melt and release gas?
A 952 cm3 container of gas is exerting a pressure of 108 kPa while at a temperature of 48 oC. Calculate the pressure of this same amount of gas in a 1236 cm3 container at a temperature of 64 oC
Is there enough info to calculate the pressure of gas if the barometric pressure is 755 torr and if so what is the answer
nitrate solution according to the unbalanced equation given below. Hg(NO3)2(aq) + NaI(aq) = HgI2(s) + NaNO3(aq) (a) What volume of Hg(NO3)2 is required for complete precipitation?
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