Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Calculate the freezing point depression and osmotic pressure at 25 degrees C of an aqueous solution of 1.0 g/L of a protein (mol wt= 90,000) if the density of the solution is 1.0 g/mL. know how to calculate freezing point depression and osmotic pressure, but I'm having trouble calculating the molarity and molality to use in the equations. Any help would be appreciated. Also, with the way the information is given, does the 90,000 count for sig figs or is it a "known value"?With the way 90,000 is listed (no period at the end), we REALLY don't know. Technically it has only one s.f.. It is a measured value. molality = mols/kg solvent mols=g/molar mass. I assume the concentration of the protein is 1.0g/L if I read the problem correctly. Thus, the #mols = 1.0/90,000 = ?? So molarity = # mols/L = ??M For such small concentrations AND with the density of the solution being 1.0 g/L, won't the molality and molarity be the same?
How do you draw S-2 and connect with bonds? Include all lone pairs of electrons and nonbonding electrons and show the charge of the atom.
The combustion of pentane with oxygen is a well known process. Write a balanced equation for the reaction of pentane, C5H12, with oxygen, O2, forming the products carbon dioxide, CO2, and water, H2O. What mass of carbon dioxide will be produced by..
How much heat in is evolved or absorbed in the reaction of 2.28 grams of sodium ( Na) with water( H 2 O), express your answer in kilocalories?
Also, at the end 1.31 g of 4,4-dimethyl-2-cyclohexen-1-one was obtained. My question how to calculate percent yield for 4,4-dimethyl-2-cyclohexen-1-one and theoretical yield for this lab.
What is the molecular geometry of a molecule with 3 outer atoms and 2 lone pairs on the central atom
The total molarity of acid and conjugate base in this buffer is 0.100 M . A student adds 6.10 mL of a 0.380 M solution to the beaker. How much will the pH change?
How many moles of gas (air) were in the container originally. c)How many moles of gas are in the container after the explosion. d)What is the pressure (in atmospheres) inside the container after the explosion according to the ideal gas law.
A solution of selenium-75, a radioisotope used in the diagnosis of pancreatic disease, is found just prior to administration to have an activity of 44 uCi/mL. How many milliliters should be administered intravenously for a dose of 175 uCi
The reaction of 2,2-dimethyl-1-propanol with HBr is very slow and gives 2-bromo-2-methyl-propane as the major product
In the following procedure, we are performing an extraction with ethyl acetate. What compounds are we separating from our product? Procedure
Determine the minimum wavelength of light necessary to overcome the work function of the following metals
Indicate which compounds present i) in the reactants and ii) in the products from this lab experiment could be expected to give positive tests with a) permanganate and b) ceric ammonium nitrate.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd