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Problem- When 5.00 g of desmopressin, an antidiuretic hormone, are dissolved in 75 g oc camphor ( kf = 40.0 C/m, freezing point = 178.40 C), the freezingoint of the mixture is 179.51 C. Determine the molar mass of desmopressin. Illustrate all work thank you
a 325ml sample of gas is intially at a pressure of 721 torr and a temperature of 32 cecius. if this gas is compressed
argon gas is ten times denser than he gas at the same temperature and pressure. which gas is predicted to effuse
The solubility of slaked lime, Ca(OH)2, in water is 0.185g/100mL. What volume of 0.00400 M HCl is needed to neutralize 14.5mL of saturated Ca(OH)2 solution
At what temperature would the rms speed of H2molecule be same?
Problem- You perform a titration of 100mL of 0.1M H2NNH2 (Kb= 3x10^-6) by 0.2 M HNO3. Calculate the pH after the addition of the following amounts of acid: 0mL, 25mL, 50 mL, 75mL.
Give four examples of systems that would behave as buffered solutions. For each of your choices indicate with chemical equations explain how the components of each buffered solution would consume additional hydronium or hydroxide ion.
When the electron cloud of a molecule is easily distorted, the molecule has a high ?
A solution containing 0.750 g of an unknown substance in 30.0 g of cyclohexane was found to freeze at 3.1 C. What is the molar mss of the unlown substance?
if the initial concentration of is 0.260 and the reaction mixture initially contains no products what are the
Give a nanoscale interpretation of the fact that at the melting point the density of solid mercury is greater than the density of liquid mercury, and at the boiling point the density of liquid mercury is great than the density of gaseous mercury.
The two products formed are 2-methyl-1-hexene (19%) and 2-methyl-2-hexene (81%). Show the chemical equation for this reaction. Explain fully why 2-methyl-2-hexene is the major product.
A vertical force of 7 N (in the negative z direction) is required to hold the deflector in place. Determine the mass (kg) of the deflector. Assume the velocity of the water remains constant.
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