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!
1. If 26.4 g of nickel(II) bromide are dissolved in 224 g of water, what will be the freezing point of the resulting solution? Assume 100% dissociation and no interaction between ions.
2. How much glycol (1,2-ethandiol), C2H6O2, must be added to 1.00 L of water so the solution does not freeze above -20.0°C?
3. Calculate the approximate freezing point of a solution prepared by dissolving 10.0 g of naphthalene (C10H8) in 300. g of cyclohexane. Pure cyclohexane freezes at 6.6°C. Kf of cyclohexane = 20.0°C/m.
4. The freezing point of a solution that contains 1.00 g of an unknown compound, (A), dissolved in 10.0 g of benzene is found to be 2.07°C. The freezing point of pure benzene is 5.48°C. The molal freezing point depression constant of benzene is 5.12°C/molal. What is the molar mass of the unknown compound?
5. What is the molality of a solution composed of 38.0 g of cane sugar (C12H22O11) dissolved in 175 g of water?
iron has a density of 7.874. gcm3. what is the mass of a rectangular block of iron with dimensions of 3.000 cm by 4.000
What is the entropy change for a particle in this system if the final number of microstates is 0.819 times that of the initial number of microstates?
Calculate the maximum mass of carbon dioxide that could be produced by the chemical reaction. Be sure your answer has the correct number of significant digits.
A compound contains only carbon, hydrogen, and oxygen. Combustion of 138.7 g of the compound yields 203.3 g of CO2 and 83.23 g of H2O.
suppose that a 5.0X10^-5 M solution of Ba(OH)2 is prepared. What is the pH of the solution?
if 24.6 grams of lithium react with excess water how many liters of hydrogen gas can be produced at 301 kelvin and 1.01
The student determined that the average concentration of HCl was 0.188 M. What volume of 0.0875 M NaOH would be needed to comletely react with 15.0 mL of this acid
Calculate the molality of a sucrose (C12H22O11) solution containing 14.3 g of sucrose in 676 g of water.
When an experiment to determine the molar mass of a volatile liquid is performed, it is found that a 342 mL flask at 22.0C and 1.00 atm is filled by .423 g of vapor. which of the following volaite liquids is it?
How many water molecules are in a block of ice containing 0.750 mol of water (H2O)
In aqueous solution, the hydrated radius of hemoglobin is found to be 3.55 nm. How many water molecules hydrate a hemoglobin molecule?
Which of the following properties indicates the presence of strong intermolecular forces in a liquid
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