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What product or products would you expect to obtain by the addition of bromine to cis-cinnamic acid, assuming that it reacts by the same mechanism as the trans acid
A solution of ammonia and water contains 4.20×10^25 water molecules and 6.90×10^24 ammonia molecules. How many total hydrogen atoms are in this solution?
What are the metric and American engineering units of the diffusion constant?
Pretend you run a reaction and your theoretical yield is 5.25 grams,but you only isolate 4.25 grams. What is your percent yield. use one decimal place
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
Write equations for the reaction of each of the following with (1) Mg in ether followed by (2) additione of D2O to the resulting solution:
A fixed quantity of gas at 21 0C exhibits a pressure of 98 torr and occupies a volume of 5.22 L. Use Charles's law to calculate the volume the gas will occupy
An organic substance has an enthalpy of vaporization of 29.0 kJ/mol. The compound has a vapor pressure of 524 mm Hg at 25 °C. At what temperature is the vapor pressure equal to 115 mm Hg?
What was the calculated PH value obtained for the reaction NH3 + HCl -› NH4Cl using the thermodynamic data NaOH (aq) + HCl (aq)--> H2O(l) +NaCl (aq) NaOH (aq) + NH4Cl(aq)---> NH3 + NaCl + H2O(l) NH4Cl 2M 20ml NH4OH 2M 10ml HCL 2M 20ml NaOH 2M 20ml
in order to make a solution that i s0.030 M in Cu SO4 what volume of the above solution should be diluted to 5.00 mL with water?
A lactic acid/lactate ion buffer solution contains 0.29 M hc3h5o3 and 0.80 M C3H5O3-, respectively. The Ka value of lactic acid is 1.4X10^-4. Calculate the pH of this buffer.
Twenty grams of liquid mercury at 98.0 °C is placed in 47.0 g of water initially at 25.0 °C. What is the final temperature of the water, assuming the styrofoam calorimeter absorbs no heat at all?
Calculate the mass (in mg) of KCN needed to make 500. mL of aqueous KCN solution with a pH of 10.00.
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