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Lysozyme is an enzyme that breaks bacterial cell walls. A solution containing .150 g of the enzyme in 210 mL of solution has an osmotic pressure of .953 torr at 25 degrees Celcius. What is the molar mass of lysozyme?
Develop a stoichiometry problem that includes finding a mass of reactant/product from another mass of reactant/product.
Consider a macroscopic object of mass 1 g moving with speed 1 cm/s in a 1-D box of length 1 cm. Assuming it obeys the laws of quantum mechanics, which quantum level (n) is the particle in
which is commonly known as table sugar, reacts in dilute acid solutions to form two simpler sugars, glucose and fructose, both of which have the formula C6H12O6 At 23C
solution should you use if you want the molarity of the Cl- (aq) ions in the solution to be 0.100 M?
A container of Methane gas initialy at 70.0 atm holds a volume of 350 litres at a temp. of 30.0C. What is mass of methane in grams
Is there a correlation between the position of a metal ion in the periodic table and the colour (or lack of colour) of the ion in solution. Explain
Usually as a solution cools, the solvent will crystallize out of the solution as the pure solvent. What effect will this have on concentration of the solute as solvent is solidifying.
If you prepare a liter of 0.02 M acetic acid and 0.01 M sodium acetate, what will be the pH if the pKa of acetic acid is 4.76? b) If you add 1 ml of 5 M NaOH to the 1 liter above, what will be the new pH and the change in pH?
How would you prepare 1 L of a .050M phosphate buffer at pH 7.5 using crystalline K2HPO4 and a solution of 1.0M HCl
What is the equilibrium partial pressure of NO in the air at 1000K if the partial pressure of nitrogen is 0.80bar, the partial pressure of oxygen is 0.20bar and delta G for the following reaction is 77.772kj/mole
At -12.0^degrees C (a common temperature for household freezers), what is the maximum mass of sorbitol (C6H14O6) you can add to 1.00 kg of pure water and still have the solution freeze? Assume that sorbitol is a molecular solid and does not ionize..
Calculate the wave-lenght for the following reactions: NO2 dissociating in NO and O2 and NO2 dissociating in N + 2O, given: DeltaHf: NO2
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