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The Specific Heat of a cooling oil is 1.75 J/g. How much heat energy is neededto raise he temp of 2.72 kg of this oil from 23 C to 191 C.
In a controlled greenhouse at 30.0C and 1.0 atm a crop of seeding tomato plants was found to consume 380 L of carbon dioxide gas during photosynthesis. Assuming 100% yield what a mass of glucose was produced for the growing plants?
What is the change in internal energy (in J) of a system that absorbs 0.836 kJ of heat from its surroundings
Four aldehydes and four hydrazines were used to explore hydrazone antibacterial activity in a combinatorial technique. How many reactions and antibiotic screenings would have been required to carry out this analysis in a non-combinatorial fashion?
draw the structure or structures of ALL the carbocations that could potentially form from the alkenes, and 3) label each carbocation as primary, secondary, or tertiary.
Calculate the [Zn2+] in a solution of ZnC2O4 held at a pH of 3.00. Remember C2O4^2- is a weak base so you must consider other equilibria.
Calculate how much water must melt in order to reach exactly 0 degrees celsius at thermal equilibrium. b) Calculate the entropy changes for ice, liquid water and the total entropy change.
We wish to prepare a buffer of pH 10 using common laboratory reagents. How many mL of 6M HCl would we have to add to a solution prepared by adding 100 mL of 15M NH3 to 200 mL of water?
Cyclopropane has significantly less angle strain than cyclopropane, yet is only slightly lower in energy. How can this be true? How does this information relate to the fact that cyclobutane is not a planar molecule
The J=3---J=2 pure rotational transtion for the CS molecule occur at 146.831 GHZ. Calculate the bond length(in pm) for the CS molecule, assuming that there is negligible centrifugal distortion.
What is the hydronium-ion concentration of a 5.23 10-4 M solution of p-bromobenzoic acid, BrC6H4COOH, for which Ka = 1.00 10-4
Instant cold packs, often used to ice athletic injuries on the field, contain ammonium nitrate and water separated by a thin plastic divider. When the divider is broken, the ammonium nitrate dissolves according to the following endothermic reactio..
What is the rate of the reaction if the concentration of CH3Br is doubled? (b) What is the rate of the reaction if the concentration of NaOH is halved
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