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!
A 0.542 g sample of an unknown monoprotic weak acid requires 28.67 mL of 0.1093 M NaOH for neutralization. What is the molar mass of the acid?
When I did it I got 173 g/mol, but Im uncertain.
A) 88.0 g/mol
B) 109 g/mol
C) 173 g/mol
D) 218 g/mol
E) 352 g/mol
How much energy (in kilojoules) is required to convert 205 mL of diethyl ether at its boiling point from liquid to vapor if its density is 0.7138 g/mL?
calculate the molecular mass of the nonionic sloutes. 6403 grams of solute in 3.90 x 10^2 grams of water raises the boiling point to 100.680 c.
A 13.00 g sample of an ionic compound NaA, where A- is the anion of a weak acid, was dissolved in enough water to make 100.0 mL of solution and was then titrated with 0.100 M HCl. After 550.0 mL of HCl was added, the pH was 5.00.
The initial concentration of some weak acid, HA, in an aqueous solution is 0.2530 M, at equilibrium the concentration of HA becomes 0.0957 mol/L. Calculate the Ka of the acid.
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.
What is the pressure of a 10g sample of sulfur trioxide in atmospheres at a temperature of 20 degrees Celsius that has a volume of 50L
Define the Joule-Thomson coefficient µ,derive an explicit form of JT coefficient and evaluate its value for an ideal gas.
A certain liquid has a vapor pressure of 92.0 Torr at 23.0 °C and 353.0 Torr at 45.0 °C. Calculate the value of ?H°vap for this liquid and calculate the normal boiling point of this liquid in °C.
Write the name of the enzyme used in PCR and discuss its origin and properties that make it a suitable enzymes for the amplification reaction
A 29.0-g sample of water at 250. K is mixed with 51.0 g water at 320. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
The radioactive decay of radon follows first-order kinetics and has a half-life of 3.823 days. How many grams of radon will remain after 12.00 days if the sample initially had a mass of 455 g?
Convert the above air volumes from standard conditions of temperature (STP) and pressure to a new volume for the temperature or pressure, or both, as given. Use 25°C and 1 atmosphere for STP conditions in this problem. This is what is used in calcu..
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