GOB Chemistry
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The volume of an HCl waste is 10000 mL. It has a pH of 2.0. A small bottle contains 1.0 g of Ca(OH)2. Show the neutralization reaction between hydrochloric acid and calcium hydroxide. Determine how many milliliters (in 1 s.f.) of the HCl waste can be neutralized by two small bottles of Ca(OH)2.
True or False: A 50.0 mL sample of a 0.149 M CsOH solution will be neutralized by an equal volume of a 0.149 M HI solution.
Determine how many milliliters of a 0.220 M KOH solution should be added to neutralize a 75.0 mL sample of 0.257 M HBr.
Strontium hydroxide solution reacts with perchloric acid in a neutralization reaction. A 25.0 mL sample of an HClO4 solution was neutralized by 29.0 mL of a 0.105 M Sr(OH)2 solution. Find the concentration (mol/L) of the perchloric acid solution.
Sr(OH)2(aq) + 2 HClO4(aq) → 2 H2O(l) + Sr(ClO4)2(aq)
Shown below is a balanced neutralization reaction between barium hydroxide (Ba(OH)2) and nitric acid (HNO3). Neutralization of 10.0 mL HNO3 solution required 13.2 mL of a 0.150 M Ba(OH)2 solution. Solve for the molarity of the nitric acid solution.
Ba(OH)2(aq) + 2 HNO3(aq) → Ba(NO3)2(aq) + 2 H2O(l)
The river Banyupahit originates from the world's largest acidic lake in the crater of Kawah Ijen volcano. A sample of the river water has been taken and observed to have a pH of 3.3, far below the normal pH range of 6-8 for stream water. Determine how many grams of Ca(OH)2 can neutralize a 50. mL river water sample if the acid in the river is sulfuric acid.
Ca(OH)2(s) + H2SO4(aq) → CaSO4(s) + H2O(l)
Solve for the amount (in grams) of magnesium hydroxide (Mg(OH)2) necessary to neutralize 30. mL of gastric acid (pH = 2.0). Note that gastric acid is mainly hydrochloric acid (HCl).
A 25.31 mL of 0.105 M potassium hydroxide solution was completely neutralized with a 50.0 mL sample of hydrobromic acid. Calculate the concentration of hydrobromic acid used.
Consider the following balanced equation:
2 HCl(aq) + Ba(OH)2 → BaCl2 + 2 H2O(l)
Calculate the volume of a 0.280 M HCl solution needed to completely neutralize 30.0 mL of 0.325 M Ba(OH)2.
A. 70.0 mL
B. 17.4 mL
C. 69.6 mL
D. 1.36 mL
E. 5.46 mL