Directly related questions
-
18M.3.sl.TZ1.14b:
Explain how omeprazole (Prilosec) reduces stomach acidity.
-
18M.3.sl.TZ1.14b:
Explain how omeprazole (Prilosec) reduces stomach acidity.
-
18M.3.sl.TZ1.b:
Explain how omeprazole (Prilosec) reduces stomach acidity.
-
18M.3.sl.TZ2.18a:
Formulate a chemical equation for the neutralization of stomach acid with calcium carbonate.
-
18M.3.sl.TZ2.18a:
Formulate a chemical equation for the neutralization of stomach acid with calcium carbonate.
-
18M.3.sl.TZ2.a:
Formulate a chemical equation for the neutralization of stomach acid with calcium carbonate.
-
18N.3.sl.TZ0.14b:
State the equation for the reaction of calcium carbonate, the active ingredient in some antacids, with stomach acid.
-
18N.3.sl.TZ0.14b:
State the equation for the reaction of calcium carbonate, the active ingredient in some antacids, with stomach acid.
-
18N.3.sl.TZ0.b:
State the equation for the reaction of calcium carbonate, the active ingredient in some antacids, with stomach acid.
- 18N.3.sl.TZ0.14c: Suggest a technique for measuring the percentage mass of calcium carbonate in this type of...
- 18N.3.sl.TZ0.14c: Suggest a technique for measuring the percentage mass of calcium carbonate in this type of...
- 18N.3.sl.TZ0.c: Suggest a technique for measuring the percentage mass of calcium carbonate in this type of...
-
19M.3.hl.TZ1.21a:
Formulate an equation for the neutralization of stomach acid with calcium carbonate, CaCO3 (s).
-
19M.3.hl.TZ1.21a:
Formulate an equation for the neutralization of stomach acid with calcium carbonate, CaCO3 (s).
-
19M.3.hl.TZ1.a:
Formulate an equation for the neutralization of stomach acid with calcium carbonate, CaCO3 (s).
-
19M.3.hl.TZ1.21b:
Acid secretion can be regulated by other types of drugs such as omeprazole and ranitidine. Outline how each of these drugs acts to reduce excess stomach acid.
Omeprazole:
Ranitidine:
-
19M.3.hl.TZ1.21b:
Acid secretion can be regulated by other types of drugs such as omeprazole and ranitidine. Outline how each of these drugs acts to reduce excess stomach acid.
Omeprazole:
Ranitidine:
-
19M.3.hl.TZ1.b:
Acid secretion can be regulated by other types of drugs such as omeprazole and ranitidine. Outline how each of these drugs acts to reduce excess stomach acid.
Omeprazole:
Ranitidine:
-
19M.3.hl.TZ2.23a(i):
Outline how ranitidine (Zantac) inhibits stomach acid production.
-
19M.3.hl.TZ2.23a(i):
Outline how ranitidine (Zantac) inhibits stomach acid production.
-
19M.3.hl.TZ2.a(i):
Outline how ranitidine (Zantac) inhibits stomach acid production.
-
19M.3.sl.TZ1.16a(ii):
Determine the volume of CO2 (g), in dm3, produced at STP, when 1.00 g of CaCO3 (s) reacts completely with stomach acid.
Mr CaCO3 = 100.09
-
19M.3.sl.TZ1.16a(ii):
Determine the volume of CO2 (g), in dm3, produced at STP, when 1.00 g of CaCO3 (s) reacts completely with stomach acid.
Mr CaCO3 = 100.09
-
19M.3.sl.TZ1.a(ii):
Determine the volume of CO2 (g), in dm3, produced at STP, when 1.00 g of CaCO3 (s) reacts completely with stomach acid.
Mr CaCO3 = 100.09
-
19M.3.sl.TZ1.16a(i):
Formulate an equation for the neutralization of stomach acid with calcium carbonate, CaCO3 (s).
-
19M.3.sl.TZ1.16a(i):
Formulate an equation for the neutralization of stomach acid with calcium carbonate, CaCO3 (s).
-
19M.3.sl.TZ1.a(i):
Formulate an equation for the neutralization of stomach acid with calcium carbonate, CaCO3 (s).
-
19N.3.sl.TZ0.16b:
An antacid contains calcium carbonate and magnesium carbonate.
Write the equation for the reaction of magnesium carbonate with excess stomach acid.
-
19N.3.sl.TZ0.16b:
An antacid contains calcium carbonate and magnesium carbonate.
Write the equation for the reaction of magnesium carbonate with excess stomach acid.
-
19N.3.sl.TZ0.b:
An antacid contains calcium carbonate and magnesium carbonate.
Write the equation for the reaction of magnesium carbonate with excess stomach acid.
-
17N.3.sl.TZ0.20a:
Explain how ranitidine (Zantac) reduces stomach acid production.
-
17N.3.sl.TZ0.20a:
Explain how ranitidine (Zantac) reduces stomach acid production.
-
17N.3.sl.TZ0.a:
Explain how ranitidine (Zantac) reduces stomach acid production.
-
17N.3.sl.TZ0.20b:
The pH is maintained in different fluids in the body by the use of buffers.
Calculate the pH of a buffer solution of 0.0200 mol dm–3 carbonic acid, H2CO3, and 0.400 mol dm–3 sodium hydrogen carbonate, NaHCO3. The pKa of carbonic acid is 6.35.
-
17N.3.sl.TZ0.20b:
The pH is maintained in different fluids in the body by the use of buffers.
Calculate the pH of a buffer solution of 0.0200 mol dm–3 carbonic acid, H2CO3, and 0.400 mol dm–3 sodium hydrogen carbonate, NaHCO3. The pKa of carbonic acid is 6.35.
-
17N.3.sl.TZ0.b:
The pH is maintained in different fluids in the body by the use of buffers.
Calculate the pH of a buffer solution of 0.0200 mol dm–3 carbonic acid, H2CO3, and 0.400 mol dm–3 sodium hydrogen carbonate, NaHCO3. The pKa of carbonic acid is 6.35.
-
18M.3.sl.TZ1.14a.i:
An antacid tablet contains 680 mg of calcium carbonate, CaCO3, and 80 mg of magnesium carbonate, MgCO3.
State the equation for the reaction of magnesium carbonate with hydrochloric acid.
-
18M.3.sl.TZ1.14a.i:
An antacid tablet contains 680 mg of calcium carbonate, CaCO3, and 80 mg of magnesium carbonate, MgCO3.
State the equation for the reaction of magnesium carbonate with hydrochloric acid.
-
18M.3.sl.TZ1.a.i:
An antacid tablet contains 680 mg of calcium carbonate, CaCO3, and 80 mg of magnesium carbonate, MgCO3.
State the equation for the reaction of magnesium carbonate with hydrochloric acid.
-
18M.3.sl.TZ1.14a.ii:
Determine the amount, in mol, of hydrochloric acid neutralized by one antacid tablet.
-
18M.3.sl.TZ1.14a.ii:
Determine the amount, in mol, of hydrochloric acid neutralized by one antacid tablet.
-
18M.3.sl.TZ1.a.ii:
Determine the amount, in mol, of hydrochloric acid neutralized by one antacid tablet.
-
18M.3.sl.TZ2.18b:
Calculate the amount, in mol, of stomach acid neutralized by an antacid tablet containing 0.750 g calcium carbonate.
-
18M.3.sl.TZ2.18b:
Calculate the amount, in mol, of stomach acid neutralized by an antacid tablet containing 0.750 g calcium carbonate.
-
18M.3.sl.TZ2.b:
Calculate the amount, in mol, of stomach acid neutralized by an antacid tablet containing 0.750 g calcium carbonate.
-
18M.3.sl.TZ2.18c:
Explain how omeprazole (Prilosec) regulates pH in the stomach.
-
18M.3.sl.TZ2.18c:
Explain how omeprazole (Prilosec) regulates pH in the stomach.
-
18M.3.sl.TZ2.c:
Explain how omeprazole (Prilosec) regulates pH in the stomach.
-
18N.3.sl.TZ0.14a:
Determine the pH of a buffer solution that is 0.0100 mol dm−3 sodium hydrogen carbonate and 0.0200 mol dm−3 sodium carbonate, using section 1 of the data booklet.
Ka (hydrogen carbonate ion) = 4.8 × 10−11
-
18N.3.sl.TZ0.14a:
Determine the pH of a buffer solution that is 0.0100 mol dm−3 sodium hydrogen carbonate and 0.0200 mol dm−3 sodium carbonate, using section 1 of the data booklet.
Ka (hydrogen carbonate ion) = 4.8 × 10−11
-
18N.3.sl.TZ0.a:
Determine the pH of a buffer solution that is 0.0100 mol dm−3 sodium hydrogen carbonate and 0.0200 mol dm−3 sodium carbonate, using section 1 of the data booklet.
Ka (hydrogen carbonate ion) = 4.8 × 10−11
-
19M.3.hl.TZ2.23a(ii):
Outline two advantages of taking ranitidine instead of an antacid which neutralizes excess acid.
-
19M.3.hl.TZ2.23a(ii):
Outline two advantages of taking ranitidine instead of an antacid which neutralizes excess acid.
-
19M.3.hl.TZ2.a(ii):
Outline two advantages of taking ranitidine instead of an antacid which neutralizes excess acid.
-
19M.3.hl.TZ2.23b:
Some antacids contain carbonates.
Determine the pH of a buffer solution which contains 0.160 mol dm−3 CO32− and 0.200 mol dm−3 HCO3−, using section 1 of the data booklet.
pKa (HCO3−) = 10.32
-
19M.3.hl.TZ2.23b:
Some antacids contain carbonates.
Determine the pH of a buffer solution which contains 0.160 mol dm−3 CO32− and 0.200 mol dm−3 HCO3−, using section 1 of the data booklet.
pKa (HCO3−) = 10.32
-
19M.3.hl.TZ2.b:
Some antacids contain carbonates.
Determine the pH of a buffer solution which contains 0.160 mol dm−3 CO32− and 0.200 mol dm−3 HCO3−, using section 1 of the data booklet.
pKa (HCO3−) = 10.32
-
19M.3.sl.TZ1.16b:
Acid secretion can be regulated by other types of drugs such as omeprazole and ranitidine. Outline how each of these drugs acts to reduce excess stomach acid.
Omeprazole:
Ranitidine:
-
19M.3.sl.TZ1.16b:
Acid secretion can be regulated by other types of drugs such as omeprazole and ranitidine. Outline how each of these drugs acts to reduce excess stomach acid.
Omeprazole:
Ranitidine:
-
19M.3.sl.TZ1.b:
Acid secretion can be regulated by other types of drugs such as omeprazole and ranitidine. Outline how each of these drugs acts to reduce excess stomach acid.
Omeprazole:
Ranitidine:
-
19M.3.sl.TZ2.16a(i):
Outline how ranitidine (Zantac) inhibits stomach acid production.
-
19M.3.sl.TZ2.16a(i):
Outline how ranitidine (Zantac) inhibits stomach acid production.
-
19M.3.sl.TZ2.a(i):
Outline how ranitidine (Zantac) inhibits stomach acid production.
-
19M.3.sl.TZ2.16a(ii):
Outline two advantages of taking ranitidine instead of an antacid which neutralizes excess acid.
-
19M.3.sl.TZ2.16a(ii):
Outline two advantages of taking ranitidine instead of an antacid which neutralizes excess acid.
-
19M.3.sl.TZ2.a(ii):
Outline two advantages of taking ranitidine instead of an antacid which neutralizes excess acid.
-
19M.3.sl.TZ2.16b:
Some antacids contain carbonates.
Determine the pH of a buffer solution which contains 0.160 mol dm−3 CO32− and 0.200 mol dm−3 HCO3−, using section 1 of the data booklet.
pKa (HCO3−) = 10.32
-
19M.3.sl.TZ2.16b:
Some antacids contain carbonates.
Determine the pH of a buffer solution which contains 0.160 mol dm−3 CO32− and 0.200 mol dm−3 HCO3−, using section 1 of the data booklet.
pKa (HCO3−) = 10.32
-
19M.3.sl.TZ2.b:
Some antacids contain carbonates.
Determine the pH of a buffer solution which contains 0.160 mol dm−3 CO32− and 0.200 mol dm−3 HCO3−, using section 1 of the data booklet.
pKa (HCO3−) = 10.32
-
19N.3.sl.TZ0.16a:
Identify the compound responsible for the acidity of gastric juice, and state whether it is a strong or weak acid.
-
19N.3.sl.TZ0.16a:
Identify the compound responsible for the acidity of gastric juice, and state whether it is a strong or weak acid.
-
19N.3.sl.TZ0.a:
Identify the compound responsible for the acidity of gastric juice, and state whether it is a strong or weak acid.
- 19N.3.sl.TZ0.16c: Outline how ranitidine reduces stomach acidity.
- 19N.3.sl.TZ0.16c: Outline how ranitidine reduces stomach acidity.
- 19N.3.sl.TZ0.c: Outline how ranitidine reduces stomach acidity.
-
19N.3.sl.TZ0.16d:
Calculate the pH of a buffer solution which contains 0.20 mol dm−3 ethanoic acid and 0.50 mol dm−3 sodium ethanoate. Use section 1 of the data booklet.
pKa (ethanoic acid) = 4.76
-
19N.3.sl.TZ0.16d:
Calculate the pH of a buffer solution which contains 0.20 mol dm−3 ethanoic acid and 0.50 mol dm−3 sodium ethanoate. Use section 1 of the data booklet.
pKa (ethanoic acid) = 4.76
-
19N.3.sl.TZ0.d:
Calculate the pH of a buffer solution which contains 0.20 mol dm−3 ethanoic acid and 0.50 mol dm−3 sodium ethanoate. Use section 1 of the data booklet.
pKa (ethanoic acid) = 4.76