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. Adter exercising on a hot summer day and working up a sweat, you often become cool when you stop. What is the molecular-level explanation of this phenomenon?
2. The chlorofluorocarbon CCl3F has an enthalpy of vaporization of 24.8 kJ/mol. To vaporize 1.00 kg of the compound, how much thermal energy transfer is required?
3. The molar enthalphy of vaporization of methanol is 38.0 kJ/mol at 25Celcius. How much thermal energy transfer is required to convert 250. ml of alcohol from liquid to vapor? The density of CH3OH is 0.787 g/mL at 25Celcius.
4. Briefly explain the variations in the boiling point below. In ur discussion be sure to mention the types of intermolecular forces involved
COMPOUND BOILING POINT
NH3 -33.4
PH3 -87.5
AsH3 -62.4
SbH3 -18.4
5. Methanol, CH3OH, has a normal boiling point of 64.7 C and a vapor pressure of 100 mm Hg at 21.2 C. Formaldehyde, H2C=O, has a normal boiling point of -19.5 C and a vapor pressure of 100 mm Hg at -57.3 C. Explain why these two compounds have different boiling points and require different temperatures to achieve the same vapor pressure.
a 10g sample of acetic acid hc2h3o2. was burned in a bomb calorimeter in an excess of oxygen. the temperature of the
The central atom has 4 electron domains. d) The central atom has 5 electron domains. e) The central atom has 2 electron domains.
According to the following reaction, how many moles of potassium sulfate will be formed upon the complete reaction of 0.462 moles potassium hydrogen sulfate with excess potassium hydroxide
Calculate the number of moles of ions produced when one mole of Co(NH3)4Cl3 is dissolved in water.
How much energy is required to completely vaporize a gallon jug of ice (128g) at 0C in 10 seconds? (in kilojoules)
The pressure of the gas as well as the atmosphere is equalized, utilizing the method described in this experiment. The atmospheric pressure is 738 mmHg. The temperature of the water as well as that of the gas is identical at 26 Celsius. Explain ho..
A 1.526 g sample of a polymer dissolved in 1.00 L of a benzene solution at 22°C has an osmotic pressure of 4.52 x 10-2 atm. What is the molar mass of thepolymer
A sports beverage company is seeking an energy supplement to increase the performance of the athletes. An ongoing research project suggest the use of a tetrasaccharide with the following characteristics
Problem- 4.75 mL of H2O and 2.50 mL of an aqueous 0.010 M SCN- solution were added to 11.25 mL of an aqueous 0.015 M Fe3+ solution. The total volume of the solution is 18.50 mL.
When the following equation is balanced using the smallest possible integers, what is the exponent of H2O in the reaction quotient expression
Problem- The pKb values for the dibasic base B are pKb1 = 2.10 and pKb2 = 7.59. Calculate the pH at each of the following points in the titration of 50.0 mL of a 0.95 M B(aq) with 0.95 M HCl(aq).
the vapor of a volatile liquid is able to fill a 408-mL flask at 100.4C and 765mm Hg, what is the molar mass of the 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