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!
Two 20.0g ice cubes at -12.0^degree C are placed into 235g of water at 25.0^degree C. Assuming no energy is transferred to or from the surroundings, calculate the final temperature of the water after all the ice melts
Heat capacity of H2O(s) is 37.7 J/mol*K
Heat capacity of H2O(l) is 75.3 J/mol*K
Enthalpy of fusion of H20 is 6.01 kJ/mol
Aqueous solutions of each of the following salts {sodium acetate, sodium phosphate, sodium formate, and sodium carbonate} have a pH that is > 7. The reason for this is that the anion undergoes a so-called "hydrolysis reaction".
1. Which of the following is NOT a form of potential energy. a. compression of a spring b. electrostatic force c. gravity d. a free electron moving at 1000 m/s e.
The first step in the industrial recovery of zinc from zinc sulfide ore is roasting, that is, the conversion of ZnS toZnO by heating: calculate the heat of reaction
the specific heat of H2O(s) is 2.09 J/g ?C, of H2O (l) is 4.184 J/g ?C, and of H2O (g) is 1.84 J/g ? C. The heat of fusion of water is 334.7 J/g and the heat of vaporization is 2259.4 J/g.
Ammonia is produced by the reaction of hydrogen and nitrogen N2(g)+3H2(g)--->2NH3(g). a) How many moles of H2 are needed to react with 1.0 mol of N2? b) How many moles of N2 reacted if 0.60 mol of NH3 is produced?
The pressure is changed to 8.75 atm and the gas is cooled to 15 C. Calculate the new volume of the gas using the ideal gas equation.
A biochemical engineer isolates a bacterial gene fragment and dissolves a 10.9 mg sample of the material in enough water to make 36.5 mL of solution. The osmotic pressure of the solution is 0.340 torr at 25°C. (a) What is the molar mass of the gen..
They have a polar end b. The have a hydrophobic end c. The are often sodium slats of long chain fatty acids. d. The hydrophilic end of the soap molecules is attracted by grease. e. they precipitate in water that contains Fe3+ ions
Calculate deltaG at 45 degrees Celsius for a reaction for which delta H = -76.6 kj and delta S = -392 J/K. The answer is supposed to be in kJ, please help
An element has ccp packing with a face-centered cubic unit cell. Its density is 11.4 g/mL and the unit cell volume is 1.21 x 10-25 L. Calculate the molar mass (g/mol) of the element to three significant figures.
What is the mole ratio of CH3COONa to CH3COOH (Ka= 1.8×10-5 ) would be in a buffer solution at pH 5
Calculate the freezing point and boiling point of a solution of 383 g of glucose dissolved in 400. g of 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