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Balance the following redox reaction using the "oxidation number" method. This reaction takes place in a basic solution.
Cr2O7 2- (aq) + I- (aq) --> Cr3+ (aq) + IO3 - (aq)
If 200 ml of gas at 400 torr is transferred to a 20.0 ml cotnainer. What will the new pressure be if the temperature is kept constant?
Calculate the normal boiling point of chloroform in Kelvin, given that the standard entropy and enthalpy of vaporization of chloroform is 93.7 J/molK and 31.4 k
A student tried the Wittig reaction experiment and did not notice the development of a yellow color when she treated benzyltriphenylphosphonium chloride with sodium ethoxide
Describe the effect of temperature on the stability of foods with glassy nature (needs to be related to food chem)
How many liters of O2 are needed to react completely with 45.0L of H2S at STP? 2H2S(g) + 3O2(g) -> 2SO2(g) +2H20(g)
You have a sample that consists of 8.2 (+ or -)o.1mL of aqueous 239Pu solution. You measure two 10mL aliquots by liquid scintillation counting and get 3211.4 cpm and 3315.2 cpm, respectively.
Many drugs that arenatural Bronsted bases are put into aqueous solution as their much more soluble salts with strong acids. The powerful painkiller morphine, for example, is very slightly soluble in water, but morphine nitrate is quite soluble in ..
Calculate the mean free path and the binary number of collisions per liter per second between HI molecules at 300 K and 1.00 atm. The collision diameter of the HI molecules may be taken to be 5.10 A. Assume ideal-gas behavior.
Write the cell reaction that occurs if the two Pt electrodes are shorted together. What is the standard potential of the cell?
Consider the following reaction between acetic acid and sodium hydroxide: NaOH + CH3COOH----------> NaCH3COO + H2O
The vapor pressure of pure propyl chloride is 347 torr at 25°C and that of pure propyl bromide is 133 torr at 25°C. Assume that the solution is an ideal solution.
The uncertainty (standard deviation) in a single buret reading for a 50 ml buret is about +/- 0.02 ml. Two readings (initial volume and final volume) are required to deliver a specified volume or titrant.
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