there are 2 typical sizes of aspirin tablets: 81.0 mg ASA and 325 mg ASA tablets....
there are 2 typical sizes of aspirin tablets: 81.0 mg ASA and 325 mg ASA tablets. Based upon this information, estimate what volume of NaOH would be required to fully neutralize the ASA in the tablets. The molecular mass of ASA is 180.16g/mol.
A) 325mg ASA tablet titrated with 0.100M NaOH
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there are 2 typical sizes of aspirin tablets: 81.0 mg ASA and
325 mg ASA tablets....
Aspirin is acetylsalicylic acid (ASA) ( C9H8O4). It reacts with NaOH ( a base) to produce...
Aspirin is acetylsalicylic
acid (ASA) (
C9H8O4). It reacts with NaOH ( a
base) to produce salt (sodium acetylate) and water. Both Aspirin
and NaOH react in 1:1 molar ratio, as
C9H8O4
+
NaOH →
NaC9H7O4
+ H2O
So, moles of NaOH = moles of ASA
Or, mmol of of NaOH = mmole of
ASA
; mmol is milli mol
and mmole of NaOH = Molarity of NaOH * Volume
of naOH used (in ml)
=
(0.1177 M) *...
assume you prepare 2.6 g, aspirin. 0.2) If a typical aspirin tablet contains 325 mg aspirin...
assume you prepare 2.6 g, aspirin.
0.2) If a typical aspirin tablet contains 325 mg aspirin (the rest is starch binder), how many tablets could you prepare from the aspirin you made in lab?
Calculate the % Yield or Recovery: 6 tablets (325 mg aspirin each) are crushed and put...
Calculate the % Yield or Recovery: 6 tablets (325 mg aspirin each) are crushed and put through recrystallization to remove the starch impurities. The product is weighed to be 1.235 g. 6mL of the alcohol from the first reaction (D=1.236g/mL) were used for a dehydration reaction. The product weighed 2.345 g. (Molar Mass of alcohol 128g/mol, alkene 110 g/mol)
1. A solution of sodium hydroxide (NaOH) was standardized against potassium hydrogen phthalate (KHP). A known...
1. A solution of sodium hydroxide (NaOH) was standardized against potassium hydrogen phthalate (KHP). A known mass of KHP was titrated with the NaOH solution until a light pink color appeared using phenolpthalein indicator. Using the volume of NaOH required to neutralize KHP and the number of moles of KHP titrated, the concentration of the NaOH solution was calculated. Molecular formula of Potassium hydrogen phthalate: HKC8H404 Mass of KHP used for standardization (g) 0.5100 Volume of NaOH required to neutralize...
3. Titration of antacid tablets Tablet 1 Tablet 2 Data and calculations Brand name of tablet Active ingredient T...
3. Titration of antacid tablets Tablet 1 Tablet 2 Data and calculations Brand name of tablet Active ingredient TuMS Antarcid Tablets Tums Antacid rah Kalcium carbonate calcium card Milligrams of active ingredient (from the manufacturer's label) Soo mg 3 09090909 32 29 3$ 28.03 32 3 5 2 3 M & M ml M ml s 3 M Mass of tablet + beaker Mass of empty beaker Net mass of tablet Molarity of HCl solution Volume of HCl added to...
PART B. Determination of Calcium Carbonate in Antacid Tablets Brand name Tablet 1 Tablet 2 Walgreens...
PART B. Determination of Calcium Carbonate in Antacid Tablets Brand name Tablet 1 Tablet 2 Walgreens antiacid carbonak Sopo mg ) Active ingredient Mass of active ingredient printed on label Mass of tablet Molarity of HCl solution Volume of HCI added to tablet 1.2939 1.30g 3.0M 3.0M 4m2 4mL "0.1M~O.IM 0 13.50 3.50 8.00 Molarity of NaOH titrant Initial burette reading for NaOH (mL) Final burette reading for NaOH (mL) Volume of NaOH used (mL) Moles of HCI added to...
3. Tilration of antacid tablets Tablet 2 Philips MgCOH)2 311 Data and calculations Brand name of...
3. Tilration of antacid tablets Tablet 2 Philips MgCOH)2 311 Data and calculations Brand name of tablet Active ingredient Milligrams of active ingredient (from the manufacturer's label) Mass of tablet + beaker Mass of empty beaker Net mass of tablet Molarity of HCl solution Volume of HCI added to tablet Molarity of NaOH titrant Volume of NaOH titrant Initial buret reading Final buret reading Tablet 1 CaCo3 Cacos 500 26-391 25-051 8 1.3408 3100 M 500 ml 6.00 M 24.086)...
Aspirin is acetylsalicylic
acid (ASA) (
C9H8O4). It reacts with NaOH ( a
base) to produce salt (sodium acetylate) and water. Both Aspirin
and NaOH react in 1:1 molar ratio, as
C9H8O4
+
NaOH →
NaC9H7O4
+ H2O
So, moles of NaOH = moles of ASA
Or, mmol of of NaOH = mmole of
ASA
; mmol is milli mol
and mmole of NaOH = Molarity of NaOH * Volume
of naOH used (in ml)
=
(0.1177 M) *...
assume you prepare 2.6 g, aspirin.
0.2) If a typical aspirin tablet contains 325 mg aspirin (the rest is starch binder), how many tablets could you prepare from the aspirin you made in lab?
1. A solution of sodium hydroxide (NaOH) was standardized against potassium hydrogen phthalate (KHP). A known mass of KHP was titrated with the NaOH solution until a light pink color appeared using phenolpthalein indicator. Using the volume of NaOH required to neutralize KHP and the number of moles of KHP titrated, the concentration of the NaOH solution was calculated. Molecular formula of Potassium hydrogen phthalate: HKC8H404 Mass of KHP used for standardization (g) 0.5100 Volume of NaOH required to neutralize...
3. Titration of antacid tablets Tablet 1 Tablet 2 Data and calculations Brand name of tablet Active ingredient TuMS Antarcid Tablets Tums Antacid rah Kalcium carbonate calcium card Milligrams of active ingredient (from the manufacturer's label) Soo mg 3 09090909 32 29 3$ 28.03 32 3 5 2 3 M & M ml M ml s 3 M Mass of tablet + beaker Mass of empty beaker Net mass of tablet Molarity of HCl solution Volume of HCl added to...
PART B. Determination of Calcium Carbonate in Antacid Tablets Brand name Tablet 1 Tablet 2 Walgreens antiacid carbonak Sopo mg ) Active ingredient Mass of active ingredient printed on label Mass of tablet Molarity of HCl solution Volume of HCI added to tablet 1.2939 1.30g 3.0M 3.0M 4m2 4mL "0.1M~O.IM 0 13.50 3.50 8.00 Molarity of NaOH titrant Initial burette reading for NaOH (mL) Final burette reading for NaOH (mL) Volume of NaOH used (mL) Moles of HCI added to...
3. Tilration of antacid tablets Tablet 2 Philips MgCOH)2 311 Data and calculations Brand name of tablet Active ingredient Milligrams of active ingredient (from the manufacturer's label) Mass of tablet + beaker Mass of empty beaker Net mass of tablet Molarity of HCl solution Volume of HCI added to tablet Molarity of NaOH titrant Volume of NaOH titrant Initial buret reading Final buret reading Tablet 1 CaCo3 Cacos 500 26-391 25-051 8 1.3408 3100 M 500 ml 6.00 M 24.086)...
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