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Complete and balance the following equation Write the ionic equation and net ionic equation. Indicate spectator ions and determine if a precipatie would form. (NH4)2C03(aq)+CaCl2
The burning acetic acid from the previous question is used to heat 1.4 L of water at 22.7°C. Assume all the heat produced in the last question is absorbed by the water => 240kJ. What would be the final temperature of the water?
Calculate the molar mass of sucrose. How many mol sucrose did you start with in this lab?
Galvanic cell consists from CO/CO2+ standard electr0de and NI/NI2+ ELECTRODE. At what concentration of nicle electrolyte the theoretical
A rigid tank of volume 0.5 m^3 is connected to a piston cylinder assembly by a valve, as shown below. Both vessels contain pure water. They a re immersed in a constant-temperature bath at 200°C and 600 kPa
Use the half reaction method to balance the following equation in acidic solution. It is not necessary to include any phases of matter for any species. It is not necessary to include any phases of matter for any species.
An empty Erlenmeyer flask weighs 261.9 g. When filled with water (d = 1.00 g/cm3), the flask and its contents weigh 465.2 g. What is the flask's volume in cm^3?
the stretomycin has an osmotic pressure of 8.72mmHg at 23.6 degrees C, what is the molecular weight of the antibiotic?
AT high temperatures phosgene (COCl2) decomposes to gve carbon monoxide CO and Cl2. In a typical experiment , 0.631g of COCl2 is injected ito a flask of volume 472cc. When equilibrium is established, it is found that the total pressure is 2.175atm..
is submerged in 7.81g of water at 52.5 degrees C in an insulated container. what is the final temperature of both substances at thermal equilibrium.
Determine whether each of the following salts will form a solution that is acidic, basic, or Ph -neutral. K2CO3, KCl, NH4ClO, CH3NH3Cl, Fe(Clo4)3
calculate the molar mass of the acid. B. After 10.00 mL of base had been added during the titration, the pH was found to be 5.87. What is the Ka of the unknown acid
solution containing a silver electrode. Determine the initial voltage of the cell at 298 K
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