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Explain are the melting behaviors of an ice cube, table sugar and table salt. Explain is there any structural information that could account for these behaviors?
The rate constants of some reactions double with every 10 degree rise in temperature. Assume that a reaction takes place at 340 K and 350 K. What must the activation energy be for the rate constant to double as described
The pH of a bicarbonate-carbonic acid buffer is 7.80. Calculate the ratio of the concentration of carbonic acid (H2CO3) to that of the bicarbonate ion (HCO3-).
what concentration of nitrogen oxide is the rate 2.0x10^-6 mol/L-min and the bromine concentration one fourth of the nitrogen oxide concentration?
Compute the pH of a solution containing 0.1000 M monosodium glutamate (MSG) that is a extensively used food additive/flavoring agent associated with a taste sensation of "umami" if pKa1 (a-COOH) = 2.16, pKa2 (COOH) = 4.30 and pKa3 (NH3+) = 9.96.
the reaction a->b=c is found to be a zero order. If it takes 4.3 x 10^2 secounds for an initial conventration of A to go from .50 M to .25 M, what is the rate constant for the reaction
A 40-year old weighs 150 lb experience abdominal pain and says he consumed two 12oz bottle of beer. The alcohol in the beer is about 5 % alcohol and he said he was drinking over a hour.
calculate the molar solubility of calcium carbonate in 0.050 molar calcium chloride and ksp for calcium chloride is 3.8X10^-9.
The air pollutant NO is produced in automobile engines because of the high-temperature reaction below. If the initial concentrations of N2 and O2 at 1000 K are both 1 M
What is the molecular formula of a gas that has a density of 1.88 g/L at STP? this is not the actual numbers but it would be nice to know how to do this.
explain how alkenearomatic c-h stretches are distinguished from alkane c-h stretches. do the c-h stretch peaks in the
A metallic object to be plated in copper is placed in a solution of CuSO4. What mass of copper will be deposited on the object if a current of 0.22 amps flows through the cell for 1.5 hours
6-An element M reacts with chlorine to form MCL2 and with oxigen to form MO2 and with nitrogen to form the most likely candidate for the element is (a) LI (b) Mg (c) Al (d) SI 7- which species does not have an octet of electron for its outer core
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