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 generic solid X has a molar mass of 68.1 g/mol. In a constant-pressure calorimeter 44.6 g of X is dissolved in 301 g of water at 23.00 °C.X(s)--> X(aq)
The temperature of the resulting solution rises to 26.10 °C. Presume the solution has the same specific heat as water 4.184 J/(g•°C) as well as that there's negligible heat loss to the surroundings. Explain how much heat was absorbed by the solution? Explain what is the enthalpy of the reaction?
A chemist added an excess of sodium sulfate to a solution of a soluble barium compound to precipitate all of the barium ion as barium sulfate, BaSO4. How many grams of barium ion are in a 487-mg sample of the barium compound if a solution of the s..
What two properties of ATP make it ideally useful for a form of energy storage in cells? Describe why the hydrolysis of ATP is highly exergonic (give at least two reasons).
What is the pH at the half-stoichiometric point (half-way to the endpoint) for the titration of 0.22 M HNO2(aq) with 0.10 M KOH(aq)?
What is the molarity of a HCl solution if the reaction of 200mL of the solution with excess CaCO3 produces 10.5L of Co2 gas at 725mmHg and 18C?
write a net ionic equation for the reaction between aqueous solutions of ammonia and hydrofluoric
calculate the final temperature of the water after all the ice melts. heat capacity of H2O: 37.7 J/mol*k heat capacity of H2O l: 75.3 J/mol*k enthalpy of fusion of H2O: 6.01 kJ/mol
Write the structural formula of the main organic product for the following reaction between an alcohol, tosyl chloride and then a nucleophile
A sample in a 1.0 mm cell absorbs 75.0% of the incident light at 510 nm. If the solution is 0.075 M, its molar absorptivity (M-1 cm-1) is:
find the mass of sodium required to profuce 5.68 l of hydrogen gas at stp from the reaction described bu the following
Ethanol (C2H5OH) melts at -114 °C. The enthalpy of fusion is 5.02 kJ/mol. The specific heats of solid and liquid ethanol are 0.97 J/g-K and 2.3 J/g-K, respectively.
A sample of KHP weighed 1.126 g. Titration of this KHP required 20.19 ml of base (NaOH). What is the molarity of the base?
a solution of na2co3 of 50ml was titrated with 65.8ml of 3.00m hydrochloric acid. determine what by weight of sodium
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