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Suppose a solution is prepared by dissolving 3.50 grams of NH4Cl in sufficient water to make 250 mL of solution. Explain what is the concentration of this solution in units of molarity?
A. 0.0327 M B. 0.0654 M C. 0.131 M D. 0.262 M
A gas confined in a 519.1-mL container exerts a pressure of 107 mm Hg at 38.6 degrees Celsius. At what Celsius temperature will it exert a pressure of 635.7 mm Hg if it is placed into a 644 mL container?
Determine the volume of 0.M baryta (Barium hydroxide is the chemical compound with the formula Ba(OH) 2 ) that is needed to neutralize 35 ml of 0.2M phosphoric acid (H 3 PO 4 ), ?
question the solubility of silver sulfate ag2so4 at a pressure of 37 atmospheres and 37 degrees has been measured at
The oxidation half and the reduction half of a voltaic cell are made of the same electrodes and the same electrolyte. The concentration of electrolyte is different in each compartment.
using vsepr molcule determine Electron Domain and Molcules for? CH3I ClF3 H2S SO3 SO4^-2 Nh4 NH2^- CO3^-2 ICI2
Calculate the molar concentration of OH - ions in an 1.18 M solution of a weak base, hydrazine, N2H4. (Kb = 4.0 10-6). What is the pH of this solution
What is the change in the boiling point of a solution made by dissolving 14.7 g of C6H12O6 into of water. the density of water is and.
A constant electric current deposits 0.365 g of silver metal in 12960 seconds from a solution of silver nitrate. What is the current? What is the half reaction for the deposition of silver. Molar mass of Ag is 107.
When the flask was re-filled with an unknown gas, the same number of moles leaked out in 2.84 hours. Identify the unkown gas.
Sketch a diagram of a pH sensitive glass electrode, label all parts and indicate the function of each part.
Calculate the maximum mass in grams of H2S that can form when 218 g aluminum sulfide reacts with excess water according to: Al2S3 + H2O => Al(OH)3 + H2S [unbalanced]
The combustion of 0.1584 grams of benzoic acid increases the temperature of a bomb calorimeter by 2.45 (degrees) C. Calculate the heat capacity of this calorimeter.
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