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The concentration of a biomolecule inside a rod shaped prokayorate call is 0.0025M Calculate the number molecules inside the cell, which is 2.4 um long and 1.4 um in diameter.
1um=1*10^-4 cm
1*10^3 cm^3 in 1 L
Calculate the molarity of each of the following solutions: (a) 29.0 g of ethanol (C2H5OH) in 545 mL of solution, (b) 15.4 g of sucrose (C12H22O11) in 74.0 mL of solution.
How would you separate a mixture of eugenol and cholesterol
The solubility of Pb(NO3)2 is 55 gramsper 100 g H2O at 20 degrees celcius. Which term would properly describe a soloution where 44 grams of Pb(NO3)2 is added to 100 grams of water at this temperature
An incompressible fluid (p(ro)= const) is contained in an insulated cylinder fitted with a frictionless piston. Can energy as work be transferred to the fluid?
Calculate the pH of a 0.42 M solution of sodium acetate, CH3COONa. (Ka(acetic acid) = 1.8 x 10-5 )
you have 505ml of a .170m HCL solution and you want to dilute it to exactly .100M. how much water should you add?
Calculate the average speed of an oxygen gas molecule, O2, at 21.0 degrees Celsius. Express your answer numerically in meters per second.
Draw a titration curve for both of these peptides. Be sure to label the axes properly, indicate the pKa values, the equivalence points and the buffering regions
Calculate the mass of oxygen per gram of sulfur for sulfur dioxide. B) Calculate the mass of oxygen per gram of sulfur for sulfur trioxide.
Na3PO4+CaCl2 ---> Ca3(PO4)2+NaCl if 0.996 g of Na3PO4 are provided, how many grams of Ca3(PO4)2 should be formed?
Ammonia gas at 223°C and 90. atm flows into a reactor at a rate of 530. L/min. Carbon dioxide at 223°C and 44 atm flows into the reactor at a rate of 600. L/min. What mass of urea is produced per minute by this reaction assuming 100% yield?
Ethyl alcohol is produced by the fermentation of glucose, C6H12O6. Given that the enthalpy of formation is -277.7 kJ/mol for C2H5OH(l) and -393.5 kJ/mol for CO2(g)
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