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!
You are asked to prepare 1.6 L of a HCN/NaCN buffer that has a pH of 9.88 and an osmotic pressure of 1.73 atm at 298 K. What masses of HCN and NaCN should you use to prepare the buffer? (Assume complete dissociation of NaCN.)
Assuming a 75% recovery of the volume from the first filtration, what volume of cation solution will be used in part B of the procedure? (Hint: you started with 100ml and added NaOH)
If the propanoate ion comes from strontium propionate, Sr(C3H5O2)2 then how many grams of strontium propanoate are needed? Assume it is completely soluble.
Consider a molecule with spacing between two energy levels of 0.250 kJ mol-1. Calculate the wavelength and wavenumber of the photon that would be needed to lead to an excitation between these two levels.
what is the pH of a solution obtained by adding 3.50g of HBr to 435mL of a 0.639M solution of HNO3?
An open flask sitting in a lab fridge looks empty, but we know that actually it is filled with a mixture of gases called air.
when carbon is burned in the presence of oxygen, the carbon and oxygen combine to produce carbon dioxide. if you start with 3 grams of carbon and 8 grams of oxygen and they react completely, how many grams of carbon dioxide will be produced?
The difference between these forces is why some solids dissolve by an exothermic reaction (release heat), while other solids absorb heat and cool the solution. For an ionic solid dissolving in water, briefly identify the attractive
A solution is 0.034M in Na2SO4 and 0.035M in Na2CrO4. Solid Pb(NO3)2 is added without changing the volume of the solution.
The solution's boiling temperature is 103.25 degrees celsius. What is the molar mass of this molecular compound?
Write the net ionic equations that account for the pH values of: 0.1M NH4Cl (pH 6.25), 0.1M NaC2H3O2 (pH 8.24)
There is 12.0 g CCl3F in a 1.1 L container at 856 torr and 300 K. What is the mass of the liquid left over?
If 20.0L of neon gas exerts a pressure of 125 psi at 423 k , what is the number of moles of gas?
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