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!
Complexometric titration and stoichiometry.
Suppose you are studying coordination compounds of Co(II) with the ligand pyridine (py, C5H5N, MW = 79.10). You isolate a crystalline compound and since the only available ions are chloride and nitrate, you hypothesize the empirical formula of the coordination compound must be Co(II)w(py)x(Cl)y(NO3)z. Addition of AgNO3 to aqueous solutions of the complex results in a cloudy white precipitate, presumably AgCl. You dissolve 0.1000 g of the complex in water and perform a precipitation titration with 0.0500 M AgNO3 at the titrant. Using an electrode that is sensive to [Ag+], you reach the endpoint after 9.00 mL of titrant are added. How many grams of chloride ion were present in the 0.1000-g sample? a. 1.60 x 10-2 b. 1.77 x 10-3 c. 4.50 x 10-4 d. 5.00 x 10-3 e. 6.38 x 10-2
Using the formula W = mg, how many milliliters of water with a density of 1g/mL are required to weigh 0.75 newtons and g = 9.81 m/s2?
Suppose that a student performed the experiment and the calculations perfectly except for the following. Unknown the student, Cu (NO3)2•3H2O instead of CuSO4•5H2O was used to make up the known Cu 2 solution
0.497ml sample of HClO4 has a pH of 0.2251. If 647ml of distilled water was added to the HClO4 solution, what would be the new pH of solution be
Write the formula of the nine chemical substances mentioned in the introduction. Classify each as either a molecular compound, an ionic compound, a molecular element, or a metal. For the copper cycle experiment
Solid carbon dioxide, CO2, (dry ice) goes directly from solid to gaseous state at -78°C. The molar heat of sublimation is 25. 2 kJ/mol.
A 4.78 L sample of H2O(g) reacts at a temperature of 375°C and a pressure of 692 mm Hg. How many grams of NH3 can be produced?
What is the sequence of the peptide? Use the one-letter abbreviations for the amino acids, and do not use dashes.
A copper zincs voltaic cell is constructed using 100 ml solutions if 1 M solutions of copper sulfate and zincs sulfate with a sodium sulfate salt Bruges.
the water level in a graduated cylinder initially at 224 rises to 287 after a piece of lead is submerged. what is the
calcium malonate, the salt of malonic acid, is found in beetroot and is known as an inhibtor of the citric acid cyle. if a sample of beetroot disolved in water has a pH of 8.20,
At a certqain temperature and pressure, one liter of CO2 gas weighs 1.65 g. What is the mass of one liter of N2 gas at the same temperature and pressure
the solubility of oxygen in water at 25 degree celsius and 1.00 atm pressure is 0.041g/L. what is the solubility of oxygen in water at 6 atm pressure?
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