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Propose a mechanism for the synthesis of 3-nitrophthalhydrazide from 3-nitrophthalic acid. (include arrow pushing electrons)
3-nitrophthalic acid will be first converted into 3 nitrophthalhydrazide by reacting with 25% hydrazine. Reduction of the nitro group to an amino group with sodium hydrosulfite affords luminol.
calculate the work that a person of mass 65kg must do to climb betweencalculate the work that a person of mass 65kg
A compound contains 40.0% carbon, 6.7% hydrogen, and 53.3% oxygen (by mass). calculate empirical formula.
for a set of non-degenerate energy states with energy ekb 0 100 200k calculate the probability of occupying each state
25g of sodium bicarbonate is weighed on a triple beam balance and 3.0M hydrochloric acid is squirted. Do you break up the sodium bicarbonate
A flask that can withstand an internal pressure of 2525 torr, but no more, is filed with a gas at 21.0°C and 758 torr and heated. At what temperature will it burst?
Describe how a linear sequence of amino acids gives rise to the three-dimensional structure of proteins. Detail the significance of this structure, how it may be modified, and the results of such modification
Calculate the pH of this solution. 2. Calculate the pH after 0.10 mol of HCl has been added to the original solution. Assume no volume change on addition of HCl. 3. Calculate the pH after 0.20 mol of NaOH has been added to the original buffer solu..
Calculate Eo, E, and deltaG for the following cell reactions Mg (s) + Sn2+ (aq) Mg2+(aq) + Sn(s) [Mg2+]= 0.045 M, [Sn2+] = 0.035 M
Calculate the deltaG for the hydrolysis of ATP in liver, muscle, and brain cells using the following table. In which cell type is the free energy of ATP hydrolysis more negative?
Polly Esther determined the Ca2+ ion content of a 100 mL sample of calcium fortified orange juice. After adding 2.0 M HCl solution to the sample, she filtered the juice to remove the pulp and other particulate matter
A mixture of CO(g) and O2 (g) in a 1 L container at 1000 K has a total pressure of 2.2 atm. After some time the total pressure falls to 1.9 atm as the result of the formation of the CO2(g). Find the mass in grams of the CO2 gas.
considering the given thermochemical equation 2nog o2g rarr 2no2g in which ?hdeg is given -114.4 kj then determine
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