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If a process is carried out at constant pressure P and the volume V of the system decreases, then is delta V negative or positive and is the work w negative, positive, or zero?
If the solution is 40.0% K2CO3 by mass, what is the predicted freezing point of this solution in °C, assuming full ionization.
The rate constant of a reaction is 7.4 x 10^-3 s-1 at 25 Celsius, and the activation energy is 33.6 kJ/mol. What is k at 75 Celsius?
What is the kinetic energy of the emitted electrons when cesium is exposed to UV rays of frequency \rm 1.5\times 10^{15}~Hz
To estimate the percentage of all-trans-lycopene present in the original tomato paste, should you average the percentages obtaned by all the members of your team? If not, what should you do, and why?
What is the pH at the equivalence point when 100.00 mL of a 0.200 M solution of acetic acid (CH3COOH) is titrated with 0.10 M NaOH to its end point?
Classify the set of solutions based on the movement of solvent from the first solution listed to the second solution listed as osmosis or reverse osmosis.
The density of silver is 10.5g/cm3 what is the volume im cm 3 of an ingot of silver with mass 0.743 kg. If this sample of silver is a cube how long in each edge in cm
Calculate the pH of the solution made by adding 0.50 mol of HOBr and 0.30 mol of KOBr to 1.00 L of water.
Chlorine(Cl2) is used as a germicide to kill microbes in swimming pools. if the product is Cl^-,was the elemental chlorine oxidized or reduced
A student prepares benzoic acid by hydrolyzing 6.47g of methyl benzoate (FW 136.15 g/mol) using excess sodium hydroxide. If the student recovers 3.71g of benzoic acid
What is the percent yield of a reaction in which 258 g phosphorus trichloride reacts with excess water to form 120. g HCl and aqueous phosphorous acid (H3PO3)
A cell measured by a student was found to be -0.461V against a Ag/AgCl reference electrode (0.222V). What is the potential when measured against SCE and NHE
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