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The enthalpy of combustion of C2H6 is 1541kJ/mole. How many grams of C2H6
Must be combusted to produce 5.00x104 kilojoules ?
Glacial acetic acid is 99.5% acetic acid (f.w. 60.052) by weight and has a density of 1.05g/mL. Calculate the volume of glacial acetic acid needed to make 1L of the buffer.
How many gigagrams of niobium contain the same number of atoms as 12.5 nanograms of vanadium
An ice cube at 0 degrees C with a mass of 115 g is added to H2O in a beaker that has a temperature of 64.0 degrees C. if the final temperature of the mixture is 24.0 degrees C, what was the initial mass of the warm water
For each reaction between a ketone and an amine, draw the curved arrow(s) to show the first step of the mechanism, then draw the final organic product
The burning of 80.3 g of SiH4 at constant pressure gives off 3790 kJ of heat. Calculate ?H for this reaction.
Provided you have sets of initial rate data for enzyme and substrate, explain using words and appropriate equations how to
Draw the structures for and name and classify as primary, secondary, or tertiary all the isomeric amines
A 31.0 mL sample of gas is collected at a temperature of 37 °C and pressure of 720 mmHg. What is its volume at 17 °C and 580 mmHg.
What is a possible formula
A 494 mL sample of hydrogen gas was collected over water at 25°C and a pressure of 753 torr. If the pressure of water vapor is 24.0 torr at 25.0°C, what mass of hydrogen gas (g) was collected? Do not enter units with your answer.
If 3.50 g of H2S are used in the above reaction, what will be the theoretical yield of water in grams?
The molar mass of cellulose is approximately 6.0 x 105 g/mol and the molar mass of a soluble starch is on the order of 4.0 x 103 g/mol. The monomer unit in both of these molecules has the emperical formula C6H10O5
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