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Lysozyme is an enzyme that breaks down bacterial cell walls. It is found in tears and egg whites and elsewhere. A solution containing 0.150 g of lysozyme in 210 mL of water solution has an osmotic pressure of 0.953 torr at 25 °C. What is the molar mass of lysozyme?
Calculate the pH of a solution of 15 mL K2HPO4 at 0.1 molarity,
Offer a brief explanation of why bandgaps for octet p-block semiconductors (1) decrease with increasing average principal quantum number
If a sample has an initial mass of 2.24 grams and undergoes decay until it has a mass of 0.140 grams, how many half-lives have passed?
Example of reducing agent mechanism, Using Curved arrows to symbolize the flow of electrons, write the mechanism for the steps involved in the conversion of 9-fluorenone
Calculate the molarity of a solution of glycerol made by dissolving 53.000 mL glycerol at 15 'C in enough water to make 270.00 mL of solution.
A mixture of CO, CO2 and O2 is contained within a 275 mL flask at 0C. If the total pressure is 780 torr, the CO has a partial pressure of 330 torr and the CO2 has a partial pressure of 330 torr, what is the partial pressure of O2?
Assuming an atmospheric pressure of 1 atmosphere, how cold does it have to be to keep your lighter from working?
When 1.33 mol of HCl reacts with excess MnO2, how many moles of Cl2 form?
Write a paper on an article and it shows many different compounds and need a better understanding of where each originated and what steps were made in their synthesis.
A student's piece of galvanized metal had a mass of 42.73 grams before dipping it into the acid. Afterwards its mass was 42.22 grams. How many moles of zinc were removed? How many atoms is that?
Compute the pressure of the system express your answer in kPa. suppose the force of gravity = 9.81 m/sec^2 , density of mercury =13600 kg/m^3.?
A 10.0 long cylindrical glass tube, sealed at one end, is filled with ethanol. The mass of ethanol needed to fill the tube is found to be 11.90 . The density of ethanol is 0.789 . what is the inner diameter of cylinder?
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