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!
To determine the concentration of a 25.0 mL acetic acid solution (Ka for acetic acid is 1.8 x 10-5), 25.0 mL of 0.200 M NaOH solution is used to reach the endpoint of titration. Calculate the pH of the endpoint.
7.00
8.87
4.74
5.13
9.02
What volumes of .50 M HNO2 and .50 M NaNO2 must be mixed to prepare 1.00 L of a solution buffered at pH= 3.55? Calculate the pH of solution formed by mixing 100 mL of .100 M NaF and 100 mL of .025 M HCl.
this gas is compressed to a volume of 286 mL and the pressure increases to 901 torr, what will be the new temperature of the gas (reported to three significant figures in °C)
What is the molecular arrangement of bonds at every carbon atom of crotononitrile. (ex like trigonal plant, trigonal pyramidal, linear etc.)
With reference to relevant clinical analytes, discuss the use of immunoassay within clinical biochemistry.
Explain why it is important to rinse out the burette and pipette with the reagent that it will hold before it is used in a titration
A gas vessel is attached to an openend manometer containing a nonvolatile liquid of density 0.791g/mL. The difference in heights of the liquid in the two sides of the manometer is 43.4 cm when the atmospheric pressure is 755 mmHg.
The freezing point change is ?1.9°C. a) Calculate the number of moles of solute in the solution. b) Calculate the molar mass of the solute.
considering the given equation c3h8g 5o2g 3co2g 4h2og in which propane and oxygen reacts compute the volume of co2
How much heat is needed to vaporize 2.42 g of liquid oxygen if the molar heat of vaporization for oxygen is 1,629 cal/mole?
How much ethylene glycol (C2H6O2) the major component of antifreeze, must be added to 1 L of water to keep it from at -15 F? Kf= 1.86 C/m.
FeS(s) dissolves by the addition of HNO3 in a manner similar to that of CuS(s). In the process, the Fe2+ ion is oxidized to Fe3+ ion. Write an equation for this reaction.
a 45 g piece of ice at 0 c is added to a sample of water at 19c. all of the ice melts and the temperature of the water
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