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 student designs an ammeter (a device that measures electricalcurrent) that is based on the electrolysis of water into hydrogen and oxygen gases. When electrical current of unknown magnitude is run through the device for 2.50 min, 10.2 mL of water-saturated H2 (g) is collected. The temperature of the system is 25.5 degrees Celsius, and theatmospheric pressure is 768 torr.
What is the magnitude of the current in amperes?
If the volume of ocean water is 5.4*10^20 contains 4.1 percent sodium chloride ("salt") by mass and the density of the water is 1.86 g/mL.
For the given reaction, 2 HCl (aq) + Ba(OH)2 (aq) BaCl2 (aq) + 2 H2O (l) 73.0 grams of HCl are allowed to react with 342 grams of BaCl2.
Write the abbreviated electron configuration for each of the following ions: a. Mn4+
A process involves the performance of electrical work in the amount w' on a system. Show that if the process is carried out at constant pressure, the heat absorbed is delta H-w'.
When the substances in the equation below are at equilibrium, at pressure P and temperature T, the equilibrium can be shifted to favor the products by
Proteins are biopolymers formed via multiple condensation coupling of which two functional groups
15g of steam at 373 K is added to 250g of H2O at 298 K at constant pressure of 1 bar. Is the final state of the system steam or liquid water? Calculate changes in entropy for the process.
A compound with the empirical formula CH2O was found to have a molar mass between 89 and 91 g. What is the molecular formula of the compound?
Take frequencies from sections on absorptions of selected functional groups in the text. If a functional group is not discussed specifically, use frequencies from Which compound will exhibit this absorption?
A chemist wanted to determine the concentration of a solution of lactic acid, HC3H5O3. She found that the pH of the solution was 2.49. What was the concentration of the solution? The Ka of lactic acid is 1.4 10-4.
Calculate the de Broglie wavelength of an neutron moving at 1% the speed of light. Calculate the velocity of a neutron with a wavelength of 75pm.
How many grams of NaCl would be needed to make 1.5 liters of a solution containing 200mEq of Cl-/liter? 2. How many grams of CaCl2 would be needed to make 0.5 liters of a solution containing 150mEg of Cl-/liter
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