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what is the concentration of ammonia in a solution if 20.75ml of a .1130M solution of HCl are needed to titrate 100.0mL of that solution
Draw the six conformers in newman projection for the 60 degree intervals from 0 to 360 degrees for carbon atoms 3 and 4. Clearly show which carbon is represented by the "dot" and the "circle" Show which C
A 21.496 g sample of magnesium is burned in air to form magnesium oxide and magnesium nitride. when the products are treated with water, 2.813 g of gaseous ammonia are generated.
What is the total number of moles of Ca needed to react completely with 4.0 moles of H2O?
A sample consisting of various gases contains 3.1×10-6 mole fraction of radon. This gas at a total pressure of 34 is shaken with water at 30 . Calculate the molar concentration of radon in the water.
calculate the number of calories required of heat energy required for warming 39.8 grams of water from 19.9 degrees Celcius to 30 degrees Celcius.
A 0.5220g sample of an unknown monoprotic acid was titrated with 9.96*10^-2 M NaOH. The equivalence point of the titration occurs at 23.84mL.
The normal boiling point of acetone is 56.5°C. At an elevation of 5300 ft the atmospheric pressure is 630. torr.a. What would be the boiling point of acetone (AHvap = 32.0 kJ/mol) at this elevation?
Carboxylic acids have higher than expected boiling points due to dimeric associations involving hydrogen bonding. The structure of 3-methylbutyric acid is shown below. Draw a second molecule of 3-methylbutyric acid
Consider the malate dehydrogenase reaction from the citric acid cycle. Given the following concentrations, calculate the free energy change for this reaction at 37.0 °C (310 K). ?G°\' for the reaction is 29.7 kJ/mol.
The fat, tripalmitin, when hydrolyzed with aqueous NaOH followed by acidification with HCl yields glycerol and palmitic acid.
usually some inception time is involved during the preparation of the Grignard. Explain the reason behind
What is the pH at the isoionic point? What is the pH at the isoelectric point? Explain the difference between your answers in (a) and (b), including specifically why one result is larger than the other.
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