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A solution of 62.4 g of insulin in sufficient water to make 1.000 L of solution has an osmotic pressure of 0.305atm at 25°C. Based on these data, compute the molar mass of insulin in g/mol.
Explain why the extrapolated temperature is used to determine the maximum temperature of the mixture rather than the highest record temperature in the experiment.
1) Use Coulomb's law to calculate the ionization energy in kJ/mol of an atom composed of a proton and an electron separated by 166.00pm 2) What wavelength of light would have sufficient energy to ionize the atom
The reaction below reaches equilibrium in a closed reaction vessel. The enthalpy change for the forward reaction is +135 kJ/mol. Does the mass of Na 2 CO 3 increase, decrease or stay the same if the mixture is transferred to a smaller reaction ves..
The inositols are a group of naturally occurring stereoisomeric 1,2,3,4,5,6-cyclohexanehexols. The most commonly occurring inositol is shown at the below. Is the structure shown chiral or achiral
Lithium iodide has a lattice energy of -7.3 times 10^2kJmol and a heat of hydration of -793kj/mol. Find the heat of solution for lithium iodide.
We did a lab in Chem where we put a liquid into a flask, secured foil on the top and poked a hole in the foil so the vapor could push out the air
Calculate the mass of Nitrogen at room temperature dissolved at room temperature in an 80 L aquarium. Assume a total pressure of 1 atm and .78 mole fraction.
Calculate the number of grams of sulfuric acid present in the mixture after the reaction is complete.
a 35.00 ml sample of naoh solution is titrated to an endpoint of 14.76 ml 0.4122 m hbr solution. what is the molarity
Calculate the weight of benzene codistilled with each gram of water and the percentage composition of the vapor produced during a steam distillation. The boiling point of the mixture is 69.4 degrees C.
although even more strained than cyclopro-panone, is nevertheless quite stable and can even be distilled. Explain, taking the polarity of the carbonyl group into account.
How do I know how many subshells each letter has (s, p, d, f) and how do I know how many electrons can be found in each subshell. E.g. why does 4f have 14 electrons
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