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The formula C6H12O6 is a source of many conversion factors. Write at least three of them. How many moles of Al atoms are needed to combine with 0.565 mol of O atoms to make aluminum oxide, Al2O3?
A 19.5 mL portion of an HBr solution of unknown strength is diluted to exactly 232 mL. If 120.4 mL of this diluted solution requires 77.8 mL of 0.36 M NaOH to achieve complete neutralization, what was the strength of the original HBr solution
The density of a 23.0% by mass ethylene glycol (C_2 H_6O_2) solution in water is 1.03 g/mL. What is the molarity of the solution?
The proper concentration for an intravenous NaCl solution is .90g NaCl per 100 mL of water(sometimes referred to as .90% m/v) If the van't Hoff factor of NaCl is i=1.8, what is the osmotic pressure of blood at body temperature, 37 degree C ? =_____at..
Using the list of Active Ingredients provided, was there enough HCl added to completely neutralize the Naproxen Sodium? (Show ALL calculations below)
Arrange the following in order of increasing basicity: a) ch3nh2, ch3nh3+, ch3nh- b) ch2o-, ch3nh-, ch3ch2- c) ch2ch(triple-bond)ch-, ch3ch2ch2-, ch3c(trip-bond)c-
The specific heat of the mixture is 4.21 J/(g.c), What is the enthalpy change for the neutralization reaction of 2.80 mol of CsOH in KJ?
The Ka of acetic acid is 1.85 x 10-5. What would be the pH of a buffer prepared by mixing 50.0 mL of 1.0 M potassium acetate with 50.0 mL of 1.0 M acetic acid?
Use the Nutritional information on the food bag to calculate the calories per gram? How does this information compare to your information? How do you explain the discrepancy? How could you do the experiment differently to get a more accurate value..
How many milliliters of 12.6 M HCl solution are needed to obtain 0.105 mol of HCl?
A 4.305-gram sample of a nonelectrolyte is dissolved in 105 grams of water. The solution freezes at -1.23°C. Calculate the molecular weight of the solute. Kf for water = 1.86°C/m.
What is the pH of a solution that results when 0.010 mol of HNO3 is added to 500mL of a solution that is 0.10M in aqueous ammonia and 0.20M in ammonium nitrate. Assume no volume change and the Kb for NH3 =1.8*10^-5
2.00 L of 0.100M pH 9.00 glycine buffer starting with the sodium chloride salt of zwitterionic glycine and 1.00M NaOH is prepared. If a reaction that generated 2.00 mmoles of base were carried out in 100 mL of the above buffer, what would be the f..
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