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One of the two most common ingredients in medication designed for the relief of excess stomach acidity is the tri-protic base aluminum hydroxide, Al (OH) 3 (78.0g/mol). If a patient suffering from a duodenal ulcer exhibits a hydrochloric acid (36.5 g/mol) concentration of 9.53 x10-3 M in his gastric juice as well as he produces 2.80 liters of gastric juice per day, Explain how much medication(in mL) containing 2.60 g Al(OH)3per 100mL of solution must he consume per day to neutralize the acid?
A sample of sodium metal having a mass of 5.45 g reacts with excess water, and the water is later evaporated. What is the solid product that remains after evaporation, and how many grams of this product are expected to be formed
At the endpoint of a titration of a weak acid HA (nicotinic acid) with NaOH (100 mL each, 0.100 M), the pH is 8.78. What is the apparent Ka of the acid
Mg + 2HCl --> MgCl2 + H2 For a mass of 0.013 g Mg and 5.0 mL of 1.00 M HCl, calculate the partial pressure of the resulting H2(g) in a flask with V = 140.612 mL at 23.5?C.
a piece of sodium metal reacts completely with water as follows.2 nas 2 h2ol -gt 2 naohaq h2gthe hydrogen gas
1 air enters the return air duct in a climate control system operating at steady state with a volumetric flow rate of
Explain HClO is a weak acid (Ka = 4.0 × 10-8) as well as so the salt NaClO acts as a weak base. Explain what is the pH of a solution that is 0.013 M in NaClO
KBr solution added to this colorless solution will cause pale yellow AgBr to precipitate. List the species, Cl-, NH3, or Br- in order of decreasing stability of the compounds or complexes that they can form with silver and explain your reasons.
If something goes wrong, all of the cyanide could end up in the air of the lab, calculate the minimum size of the lab to keep the concentration of hydrogen cyanide in the lab below 5% of the lethal dose.
Benzoic acid was made in a reaction along with product and benzoic acid needs to be removed using extraction. How can this be done. The solvent is CH2Cl2
Explain the hydrate of sodium carbonate contains 62.9% water by mass. Utilize this value to verify the chemical formula of the hydrate of sodium carbonate. Presume a 100.0 gram basis
A graph of abs vs. time of the product of an enzyme catalyzed reaction has a slope of 0.009 sec-1. What is the velocity of the reaction if the product has a molar absorptivity of 13,000 M-1 cm-1 and a path length of 0.5 cm in a 200 µL volume
Many laboratory gases are sold in steel cylinders with a volume of 43.8L. What mass in grams of argon is inside a cylinder whose pressure is 17,180 kPa at 200C
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