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How much dry solute would you take to prepare each of the following solutions from the dry solute and the solvent?119g of .465 MKCl
After losing the electron, how many protons will Na have in its nucleus? Sodium (Na), atomic number 11, has a tendency to lose an electron in the presence of chlorine
"Calculate the CH3CO2+ in a solution that is 0.50 M CH3CO2H and 0.25 M HCl (Ka CH3CO2H = 1.8 x 10^-5)" If acetic acid will not really react with a strong acid like HCl, why is the salt given as a positive ion? Isn't a hydrogen ion present too as p..
How many molecules of ethanol C2H5OH are present in 135 g of ethanol? The density of ethanol is 0.789 g/cm3?
Calculate the mass percent of a solution that is prepared by adding 61.4 g of rm NaOH to 413 g of {rm H_2O}.
Which formula represents the greatest number of isomers?
what is the charge of the carboxyl group in an amino acid at physiological pH. Please explain the charge. Also what is the charge above and below physiological pH
a 0.50 moll solution of codeine has a poh of 3.05. what is the kb value of
A constant current is passed through a solution containing Cu2+(aq) resulting in the deposition of 4.40 g of Cu at the cathode. Assuming a current efficiency of 100%, if this same current is passed through a solution of TcO4 for the same amount of..
A 42.7 gm sample of SO 2 occupies 2.30L at 38.2 degrees Celcius. What pressure in atmospheres will the gas exert
A weak acid HX has Ka = 1.00×10-6. What would be the pH of a 0.10 M solution of HX in water?
write the formula of the complex ion formed between a. the ligand cl- and the copper ii ion with a coordination number
A solution is prepared by dissolving 1.29 g of an unknown organic compound in 15.00 g of cyclohexane. What is the molar mass of the compound if the solution has a melting point of -5.1°C
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