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A stock solution of glucose in water is prepared: 5.0 mL of this solution is diluted with water exactly to a total volume of 250.0 mL. The concentration of the diluted glucose solution was found to be 5.000 mM (5.00 x 10-3 M). Calculate the concentration of the stock glucose solution.
Liquid butane, C4H10, is stored in cylinders to be used as a fuel. Suppose 31.2 g of butane gas is removed from a cylinder. How much heat must be provided to vaporize this much gas. The heat of vaporization of butane is 21.3 kJ/mol.
Human urine has a normal pH of 6.2. If a person eliminates an average of 1226 mL of urine per day, how many H+ ions are eliminated per week
Calculate the masses of the reactants and products of the following equation. Please show work.
A silver block, initially at 56.8 degrees C, is submerged into 100.0g of water at 24.7 degree C, in an insulated container. The final temperature of the mixture upon reaching thermal equilibrium is 27.8 degrees C
In a protein determination, the color of dye changes to blue when it binds to protein, and the absorbance of light is measured. The data below were taken to calibrate the instrument. An unknown protein sample gave an absorbance of 0.867
If 15 amino acids were linked together by condensation and elimination of water, how many water molecules would be lost and how many new peptide bonds would be formed.
a protein subunit from an enzyme is part of a research study and needs to be characterized. a total of 0.160 g of this
calculate the atom economy and reaction efficiency of the synthesis of camphor to from isoborneol
what is the delta Hrxn, delta Grxn and delta Srxn at 298 K. Ethylbenzene, C6H5--CH2CH3 : delta Ht = -12.5 kJ/mol, delta Gt = 119.7 kJ/mol and S = 255 J/mol*K Styrene, C6H5--CH==CH2 : delta Ht = 103.8 kJ/mol, delta G..
The rate of substitution of alkyl chlorides and alkyl bromides can be increased by adding a catalytic amount of sodium iodide. Explain
Diccuss the difference between atomic packing factoe in terms of the angle between the unit cells. Specifically, let a be the angle between the unit cell of a general 2D lattice.
A buffer initially contains 0.10 mol acetic acid and 0.13 mol of sodium acetate in 1.00 L. 0.02 mol of potassium hydroxide is added to the buffer
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